What is the most important significance of meiosis?

Answers

Answer 1

Gametes, or sex cells, which are needed for sexual reproduction are created during meiosis. It deactivates the sporophytic information while activating the genetic information for the production of sex cells.

Meiosis is, meaning "lessening," as it is a division through reduction)  In sexually reproducing animals, is a specific form of cell division of germ cells that results in the gametes, such as sperm or egg cells.

It comprises two rounds of division, producing four cells with just one copy of each chromosome as a final product (haploid). Furthermore, genetic material from the paternal and maternal copies of each chromosome is crossed over prior to division, resulting in novel combinations of coding on each chromosome.

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Related Questions

is cell wall or cell membrane is living organle​

Answers

Answer:

nooooooooooooooooooo it is not a living organelle

Need help pls answer this!!

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Atlantic ocean is next to Florida on the right side. The golf of Mexico is right next to Texas. The pacific ocean is next to California. The Mississippi river runs down to Louisiana.

a host is not considered diseased until an infection changes one's state of health. true or false

Answers

Answer:

it Is true

Explanation:

because he wouldn't have a virus and feel well

Which stem type increases in diameter each year?
A. woody
B. leafy
C. gummy
D. herbaceous

Answers

Answer:

A

Explanation:

Woody stems are stiff and increase in size year after year.

Which of the following best describes why scientists used the conversion of stored binary patterns to send an image to star cluster M13?

Answers

Scientists used the conversion of stored binary patterns to send an image to the star cluster M13 as a way to transmit data over long distances through space using radio waves.

What are binary patterns?

Generally,  Radio waves allowed scientists to communicate data over vast distances via space by converting stored binary patterns into a pattern that could be decoded as an image. This was done in order to send a picture to the star cluster M13.

By encoding the information to be sent into a binary format, which can then be communicated as a sequence of radio waves, this technology enables the transfer of enormous quantities of information in a manner that is both efficient and accurate.

It is possible that the picture was selected as the data to be sent in order to demonstrate the capabilities of the technology or to test those capabilities.

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¿Qué características tuvieron las primeras células que aparecieron en la Tierra?

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Can u translate in English ?

What determines a cat's fur pattern?

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A cat's color pattern is partly determined by a gene called DKK4.

Domestic Cats All cats have some sort of tabby in their genetics. The A gene is involved in cat patterns. A, or agouti, dominant, produces ticks or bands of color in the hair.

There are 6 types of cat hair patterns. These are tabby, solid, bicolor, tricolor, tortoiseshell and colorpoint. These different markings are attributed to cat genetics, and the results can be surprising.All domestic cats, even plain ones, have an underlying genetic pattern of tabby. Spots, Stripes, Spots:

A cat's fur color pattern resulting from an important gene.

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A snake has scaly skin to keep from drying out in the desert. A cactus has sharp spines and a thick stem that keep water in. Which term describes such traits that help organisms survive

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A snake has scaly skin to keep from drying out in the desert. A cactus has sharp spines and a thick stem that keep water in .Adaptations term describes such traits that help organisms survive.

In biology, there are three related definitions of adaptation. First, natural selection, a dynamic evolutionary process, adapts organisms to their environments, improving their evolutionary fitness. Second, it is a state that the populace has attained along that process. Thirdly, it is a phenotypic characteristic or adaptive trait that has been preserved and has evolved via natural selection and has a functional purpose in each individual organism.

History has recorded descriptions of adaptation going back to the time of the ancient Greek philosophers Empedocles and Aristotle. Natural theology of the 18th and 19th centuries saw adaptation as proof of the presence of a deity. Charles Darwin suggested that natural selection should be used as the explanation instead.

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Full Question: A snake has scaly skin to keep from drying out in the desert. A cactus has sharp spines and a thick stem that keep water in. Which term describes such traits that help organisms survive ?

Recessive traits

genes

instincts

Adaptations

_______waves do not require a medium, so can travel through a vacuum
a)Electromagnetic
b)Sound
c)Ocean
d)Longitudinal

Answers

Answer:

Electromagnetic waves

Explanation:

This is all the information it gives

Answers

Food coloring molecules in both the hue yellow and the color blue are tiny.

What does the word "membrane" mean?

The small piece that defines the external perimeter of a live colony or a interior cell compartment is known in biology as a membrane. The organelles are the spaces surrounded by internal membranes and have the plasma membrane as their external border.

What purposes do membranes serve?

Therefore, the cell membrane serves two purposes: first, as a barrier preserving the components in and undesired things out, and second, as a gate permitting the passage of vital nutrients into the cell and the movement of waste products out of the cell.

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If the resilience of a damaged ecosystem is low enough, the degraded area may not be restored by secondary succession. When this happens, the damaged ecosystem has reached ____.

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A tipping point is the point of no return, when the damage to an ecosystem has been so great that it can no longer recover through natural processes, such as secondary succession.

The tipping point is typically reached when the resilience of the ecosystem has been severely weakened, meaning that the system is unable to respond and recover to disturbances and disturbances can no longer be easily reversed. This can be due to a number of factors, such as climate change, pollution, overuse of resources, deforestation, and so on.

When the tipping point is reached, the ecosystem may never recover in its original state and may be permanently damaged or even destroyed.

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In models of logistic population growth, _____. Group of answer choices new individuals are added to the population as N approaches K the population growth rate slows dramatically as N approaches K new individuals are added to the population most rapidly at the beginning of the population's growth only density-dependent factors affect the rate of population growth carrying capacity is never reached

Answers

In the logistic population growth model, population growth slows dramatically as N approaches K.

There are various mathematical models that can explain population growth. In the exponential growth model, population size follows a “J” shaped curve and grows very quickly. In the logistic growth model, population size follows an “S” shaped curve, growing rapidly and then leveling off.

When the population size N is well below the carrying capacity K, the population size increases rapidly, forming the first loop in S. As N approaches K, resources are limited, population growth slows down, the curve levels off, and his second loop to form an 'S'.

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need help asap
question 13
- 20 points

Answers

Answer:

The Angle-Side-Angle Postulate (ASA) states that if two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the two triangles are congruent.

Explanation:

Answer:

the awnser is: A

DDT and other pesticides used over 50 years ago are still affecting the environment today. Scientists have found these substances in recent glacier runoff. Glacier runoff occurs during the summer, when precipitation that has fallen on glaciers during the winter is released. Ice layers from existing glaciers have been analyzed. The results of this analysis show that the concentrations of DDT and other pesticides were highest about 10 years after the use of these substances was banned. This information shows that
A. DDT and other pesticides cause glacier runoff during the summer.
B. it takes humans over 50 years to analyze a glacier.
C. precipitation helps to break down pesticides.
D. the decision of one human generation may have an impact on future generations.

Answers

This information shows that the decision of one human generation may have an impact on future generations.

We must note that what happens in a generation usually affects the next generation. This is particularly important when considering the release of pollutant materials into the environment.

DDT is a persistent organic pollutant (POP). It is capable of remaining in the environment for a long time.

The impact of the decision of particular generation to use certain chemical substances will continue to resonate far into the future generations.

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Cellular Communication and the Cell Cycle FRQ:


a) Low extracellular pH activates TRPV1 through the binding of H + ions to TRPV1. Describe the properties, including the location, of the site of TRPV1 that allow H+ ions to bind. Describe the specific location in the cell where ATF3 protein is produced.


b) The pGoG protein is known to block the G1 to S transition in the cell cycle. Explain why this prevents mitosis from happening in the cell

Answers

Specifically, in sensory neurons, the plasma membrane of cells contains the cation channel protein TRPV1. Heat and low extracellular pH are only two of the many triggers that might cause it to become active.

The protein TRPV1 undergoes a conformational shift in response to the adsorption of H+ ions, opening the ion channel and allowing calcium ions to enter the cell. The subsequent signaling pathways that result in the perception of pain are activated by this calcium ion inflow.

ATF3 protein is exclusively synthesized in the cytoplasm of the cell, more particularly in the nucleus, where it is transcribed from the ATF3 gene.

The pGoG protein is known to block the G1 to S transition in the cell cycle by inhibiting the activity of the cyclin-dependent kinase (CDK) that is responsible for initiating DNA replication. This prevents mitosis from happening in the cell because, without DNA replication, the cell cannot divide.

Additionally, the pGoG protein also promotes the activity of the tumor protein p53 which is also known as the "guardian of the genome" and helps to prevent DNA damage and cell mutations, when it is activated it can stop the cell cycle and prevent mitosis from happening.

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what system works with the respiratory system to circulate blood and oxygen throughout the body

Answers

To obtain oxygen into the blood, its blood supply (cardiovascular system) pumps blood from of the heart to the lungs. Oxygen-depleted blood is returned to the heart through veins to restart circulation.  

                                           

 The respiratory system is supported by the circulatory system, that carries blood from and into the lungs. The circulatory system consists of the heart and blood arteries. The circulatory system assists in moving nutrients and oxygen through the lungs to the body's tissues and organs. Additionally, it aids in the removal of trash and carbon dioxide. The portion of the airway that extends below the larynx is known as the trachea (windpipe) (LAIR-inks). To keep the trachea (TRAY-kee-uh) open, its walls are lined with hard cartilage rings. Cilia that border the trachea move fluids and other objects out of the airway to prevent them from entering the lungs.

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what is physiography ? ​

Answers

Answer:

physiography originally means the study of nature . but here  it means physical geography

Explanation:

hope it helps  

stay safe love u

btw can i get brainliest

physiography (countable and uncountable, plural physiographies) (geography) The subfield of geography that studies physical patterns and processes of the Earth. It aims to understand the forces that produce and change rocks, oceans, weather, and global flora and fauna patterns.

how do fossils contribute to our understanding of earth's history?​

Answers

Answer:

because fossils can be linked to millions of dead species like dinosaurs and which can be linked to much parts of our history

Explanation:

they can help us determine the geologic age and environment in which they were deposited

Planes, factories, and cars affect the carbon
cycle by:

Answers

Answer:

They affect the cycle by adding more/extra carbon into the atmosphere.

Explanation:

Carbon moves from fossil fuels to the atmosphere when fuels are burned. When humans burn fossil fuels to power factories, power plants, cars, planes, and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas.

How are protists similar to plants?

Answers

Answer:

Plant-like protists are autotrophs. This means that they produce their own food. They perform photosynthesis to produce sugar by using carbon dioxide and water, and the energy from sunlight, just like plants. ... Protists can be unicellular (single-celled) or multicellular (many-celled).

Explanation:

Answer: Plant-like protists are autotrophs. This means that they produce their own food. They perform photosynthesis to produce sugar by using carbon dioxide and water, and the energy from sunlight, just like plants. ... Protists can be unicellular (single-celled) or multicellular (many-celled).

Categorize all the components involved in photosynthesis as either matter or energy!

Answers

Energy and matter are also produced during photosynthesis. Chemical energy in the form of glucose and matter in the form of oxygen gas is produced during photosynthesis.

The process by which plants convert carbon dioxide, water, and sunshine into oxygen and sugar-based energy is known as photosynthesis. The four stages of photosynthesis include light absorption, electron transfer, ATP production, and carbon fixation. The main purpose of photosynthesis is to transform solar energy into chemical energy, which is then stored for later use. This mechanism primarily provides energy to the planet's life systems. By the norms of human engineering, it is not particularly effective, but it gets the job done.

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What triggers the release of protease?

Answers

Answer:

Injury and inflammation trigger the generation and release of proteases from mast cells (tryptase), epithelial cells, and neurons

Explanation:

Hurry HELP ME WITH THIS PLEASE!!!!!

Answers

The values for the speed of the scientists and the distance time graph are found as follows;

6. Please find attached the required distance time graph for each scientist

7. Newton's speed is about 1.[tex]\overline{1}[/tex] m/s

Madam Curie's speed is 2.5 m/s

Tyson's speed is 1.[tex]\overline{428571}[/tex] m/s

8. Madam Curie won the race, Tyson was second and Newton was third

9. The slope of the lines on the graphs are

The slope on Newton's graph = 1.[tex]\overline{1}[/tex]

Slope on Madam Curie's graph = 2.5

Slope on Tyson's graph = 1.[tex]\overline{428571}[/tex]

What is the slope of a linear graph?

The slope of a graph is the ratio of the rise to the run of the line on the graph.

The specified information in the question are as follows;

The time it takes Newton to complete the 10 meters walk = 9 seconds

The time it takes Madame Curie to complete the distance of 10 meters = 4 seconds

The time it takes Tyson to complete the 10 meter distance while balancing the apple on his head = 7 seconds

The formula for the speed is; Speed = Distance/time

[tex]Speed = \dfrac{Distance}{Time}[/tex]

Distance = Time × Speed

Therefore, distance is directly proportional to the time of travel at a specified speed

The graph of the distance to time is therefore a straight line passing through the origin.

The coordinate of the origin (0, 0) is a point on the graph of each person.

The other point are specified by the value, y = 10 meters, and t as follows;

The points on the graph of Newton are (9, 10), (0, 0)

Newton's speed = 10 m/(9 s)= 1.[tex]\overline{1}[/tex] m/s

The point on the graph of Madam Curie are (4, 10), (0, 0)

Madam Curie's speed = 10 m/(4 s) = 2.5 m/s

Points on the graph for Tyson are (7, 10), (0, 0)

Tyson's speed = 10 m/(7 s) = 1.[tex]\overline{428571}[/tex] m/s

Please find the distance vs. time graph for each scientist created with MS Excel

7. The formula for the speed of each scientist is presented as follows;

[tex]Speed = \dfrac{Distance }{Time}[/tex]

Newton's speed = 10 m/(9 s) = 1.[tex]\overline{1}[/tex] m/s

Madam Curie's speed = 10 m/(4 s) = 2.5 m/s

Tyson's speed = 10 m/(7 s) = 1.[tex]\overline{428571}[/tex] m/s

8. The winner of the race is the scientist with the highest speed, who completes the 10 meter distance in the shortest time, which is Madam Curie

The scientist that was second is the scientist with the second fastest time, which is Tyson

The scientist that was third is Newton

9. The slope of the line is equivalent to the speed of each scientist, therefore;

The slope for Newton's distance time graph is 1.[tex]\overline{1}[/tex] m/s

Slope for the graph for Madam Curie is 2.5

Slope for the distance to time graph for Tyson is 1.[tex]\overline{428571}[/tex]

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What are the four features of bacteria?

Answers

Bacteria are single-celled organisms having membrane-attached cell organelles instead of a true nucleus. The reason why bacteria may survive in harsh settings is because:

Energy generating enzymes

Endospores

Cell wall

Cyst

The primary property of the bacteria is their ability to develop a cyst, which protects them from harmful environmental elements. For instance, the prokaryotic organism can survive in both hypertonic and hypotonic conditions because to its cell wall. The bacteria also make endospores, which let them tolerate extremely high temperatures. The bacteria create cold shock proteins that help them withstand freezing temperatures. Bacteria are single-celled creatures that lack a genuine nucleus in favour of membrane-bound cell organelles. Because of the following factors, bacteria can withstand trying conditions:

enzymes that generate energy

Endospores are a kind of cell wall tumour.

The primary trait of bacteria is their ability to generate spores or cysts, which protects them from severe environmental conditions. The bacteria may also live in extremely hot or cold environments. The bacteria also need food, light, and water to live. Some bacteria have the ability to photosynthesize or feed on other living organisms.

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Mario at lab table A needs a pair of forceps (tweezers). Max at lab table B tosses Mario a pair. In terms of laboratory safety, which best describes Max’s behavior? It demonstrates a lack of planning. It is unsafe and can result in someone getting hurt. It is safe and appropriate. It shows proper handling of equipment

Answers

Mario in lab table A needs tongs (tweezers). It shows a lack of planning.

Mario's actions of throwing the tweezers are unsafe and can even hurt someone.Just throwing or throwing the tweezers can lead to various unwanted incidents, so Mario carefully throws the tweezers into Mario. had to pass. This is against laboratory laws as safety is the number one priority when working in a laboratory.

Wash hands after handling hazardous materials, before and after eating, and before leaving the laboratory. Keep personal items separate from lab work. This prevents the spread of hazardous reagents and blocks potential exposure routes.

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Which of the following statements about a gene that shows maternal effect inheritance is true?
O Offspring will have a mutant phenotype if the father has a mutant genotype.
O Offspring will show a mutant phenotype if the mother has a mutant genotype.
O Embryonic cells transcribe the gene.
O Offspring will always show a mutant phenotype if they have a mutant genotype.

Answers

A gene that shows maternal effect inheritance is a gene that is expressed in offspring only if the mother has a mutant genotype.

The offspring will show a mutant phenotype if the mother has a mutant genotype, regardless of the father's genotype. This means that the offspring will not necessarily have a mutant phenotype if the father has a mutant genotype.

This type of gene expression is regulated by the maternal environment, which includes both the mother's genotype and the environment in which she lives. Embryonic cells transcribe the gene, and so the gene is expressed in the offspring. However, the gene's expression can be suppressed or enhanced depending on the environment in which the mother lives.

Offspring will not always show a mutant phenotype if they have a mutant genotype. This is because the gene may be expressed in the offspring only if the maternal environment is favorable for expression. If the environment is not favorable, the gene may be repressed, and the offspring will not show a mutant phenotype.

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What statement best describes why the process of meiosis is important to Mendel's law of independent assortment of traits on different chromosomes?

Answers

The correct answer (B) In a "fair meiosis", there is an equal probability of each allele going to the gametes.

Independent Assortment Experiment by Mendel

In plants that were true-breeding for two characteristics, Mendel conducted dihybrid crosses. For instance, a plant with round seeds and the color of yellow seeds crossed pollinated with a plant with wrinkled seeds and the color of green seeds.

Round seed shape (RR) and yellow seed color (YY) characteristics are prevalent in this hybrid. Recessive traits include wrinkled seed shape (rr) and green seed color (yy).

The kids that resulted (or F1 generation) were all heterozygous for yellow seeds and spherical seed morphology (RrYy). This indicates that in the F1 generation, the dominant features of spherical seed shape and yellow color totally concealed the recessive traits.

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Full Question: What statement best describes why the process of meiosis is important to Mendel's law of independent assortment of traits on different chromosomes?

Meiosis provides a way for alleles to maintain the associations they had in the parental generation.

In a "fair meiosis", there is an equal probability of each allele going to the gametes.

In meiosis, the segregation of one pair of homologous chromosomes affects the segregation patterns of other pairs.

Homologous pairs of chromosomes line up at the metaphase plate in meiosis.

In meiosis, how each pair of homologous chromosomes segregates is unaffected by what other pairs do.

A racing car has a mass of 800 kg. It undergoes an acceleration of 3.0 m/s2. What is the Force acting on the car. F=ma ()

Answers

F=m*a so
F=800*3
F=2400N

2. Baldness is a dominant trait. Tom's genotype for baldness is Hh. What describes Tom's genotype and phenotype?
homozygous; not bald
heterozygous; not bald
homozygous; bald
heterozygous; bald

Answers

He would be heterozygous; bald.

¿Qué es una fuente de luz?

Answers

Una fuente de luz es todo lo que produce luz, hay fuentes de luz naturales y artificiales. Algunos ejemplos de fuentes de luz naturales son el sol, las estrellas y las velas.
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What are 4 business environments? select all of the partial products of 5 x 1,234[] 20[] 150[] 1,000[] 10,000 Think of a real life example when you have seen herd behavior in action. what do you think caused the people in your example to think or act as a group? Do you remember seeing anyone who chose to do something different from the rest of the group? A car travels 196 miles in 3.5 hours. A. 224 miles in 4 hours B. 356 miles in 6 hours C. 504 miles in 9 hours D. 392 miles in 7 hours Find volume of cylinderI really need an answer for this FAST so if anybody can answer id really appreciate it :) 6. Understanding of the cell has changed overtime. Which explains why this has occurred? A New scientific discoveries lead to new theories.B Theories are redesigned every ten years as a necessity.C The constantly evolving universe requires new theories to describe it.D Larger number of scientists have opinions that must be incorporated. please help me its due at 12 a.m please and ty i'll give brainlisted Help would be greatly appreciatedHow many moles of Zn(NO3)2 form from 7.0 mol AgNO3? what did gold miners face in the 1900 If Bert goes on vacation and misses regular exercise for three weeks,this should have no effect on himhe should exercise harder to get back in shape he should lower his exercise goals he should perform rehabilitation exercises Violet Johnson has income taxes deducted from her paycheck at the combined rate shown in her pay stub. What is her net pay in dollars? Round to the nearest cent. A train traveled 250 mi in 2 hours. If it traveled at the same rate of speed how long would it take the train to travel 600 mi Small explanation about autocratic leadership Jeremy is practicing some tricks on his skateboard. One trick takes him forwards 5 feet, then he flips around and moves backwards 7.2 feet, and then he moves forward again 2.2 feet. a). What expression could be used to find how far Jeremy is from his starting position when he finishes the trick b). How far from his starting point is he when he finishes the trick? Explain. The invasion of _________ by Germany resulted in WW II. How do you find the number of grams in 1.204 moles of [tex]NH3[/tex]? 3. ) Mary is the director of the Washington Performing Arts Center. Her employer offers a pension. Marys employer uses a formula to calculate the pension. Marina is planning on retiring at the end of this year after 30 years of employment. A retiring employee receives 1. 6% of his or her average salary for the last 5 years of employment multiplied by the number of years worked. Mary would receive this amount each year until her death. Her salaries for the last 5 years are $80,900; $90,200; $95,000; $99,000; and $104,000. Calculate Marinas pension Which of these statements is true about the two graphed parallelograms? Finish the statement: A dwarf planethas enough mass to orbit either a planet or the Sun.has enough mass to clear its orbit of other objects.has enough mass to attain a spherical shape.doesn't have enough mass to have its own moon.It's not A 2. 4. 3 Test (CST): The Rhetoric of Argument Question 3 of 20 Click to read a passage from "An Indian Father's Plea" by Medicine Grizzlybear Lake. Then answer the question. Which words best describe the tone of this passage? A. Happy and excited B. Angry and impolite C. Informal and surprised D. Formal and respectful SUBMIT