Since the Pitx1 gene codes for a protein crucial im lower limns development, a mutation occurring near Pitx1 gene will affect refikjs around the lower limbs but not those far away from it.
What are mutations?Mutations refers to alterations or error that occur which change the original sequence of nucleotides in a DNA molecule.
The Pitx1 gene is a gene that codes for a protein that involved in development of the lower limbs.
A mutation near but outside of the coding region of Pitx1 may cause a loss of pelvic fins without pleiotropic effects on the pituitary gland and jaw because the pelvic fins form part of the lower limbs whole the jaws and the pituitary gland are not found in the lower limbs.
Therefore, the mutation occurring near Pitx1 gene will affect regions around the lower limbs but not those far away from it.
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What two processes increase genetic diversity during meiosis?
Answer:
Crossing over
Independent assortment
Explanation:
100pts for every person with the most correct questions i will give brainiest
Question 1. In some lizard species, a short tail is recessive and a long tail is dominant. According to the principle of dominance:
a lizard with a tt genotype will have a long tail
a lizard with a tt genotype will have a short tail
a lizard with a Tt genotype will have a short tail
a lizard with a TT genotype will have a short tail
Question 2. S#x-linked disorders _____.
affect females more than males
affect males more than females
affect both s#xes equally
Question 3. Choose all the answers that apply.
In some flower species, pink flowers are recessive and yellow flowers are dominant. A pink flower:
has one dominant and one recessive gene
has two equally dominant color genes
has the same genotype as a yellow flower
has two recessive genes
has a phenotype of pp
Question 4. In some goats, white hair is dominant and black hair is recessive. Which of the following statements is true?
Color in goats is a s#x-linked trait.
A gray goat (Ww) expresses incomplete dominance.
A gray goat (Ww) must have a mutated gene.
A black goat (ww) expresses codominance.
Have A Great Day!
Answer:
what
Explanation:
It took a snail 5 seconds to travel 10 inches. How fast was the snail moving?
Answer:
The snale went 0.5 inches per second
Explanation:
The equation for speed is: S = d/t
The sail too 5 Seconds to travel 10 inches** this is were you have all your information needed
Now solve
S= 5/10
all you have to do is simplify
D= 1/2
and convert into demile
0.5
now make a statement
The snail went 0.5 inches per second
The graph below shows how the price of wheat varies with the demand quantity.
Suppose that an increase in production costs decreases the supply of wheat, such that less wheat is supplied at each price level. The new equilibrium quantity (after the decrease in supply) is _____.
400
600
Answer:
400
Explanation:
Which statement about predator and prey adaptations is correct?
A. Only predators benefit from having poison.
B. Only prey benefit from camouflage.
C. Both prey and predators can benefit from high speed.
D. Only predators benefit from good vision
How much atoms and cells on a phone screen
Answer:
100 trillion atom in 1 cell
Explanation:
im not sure huhu sorry po
How to cross trihybrids
Answer:
Im not quite sure what this question is. But it sounds intresting. I wonder what the outcome of that eould look like eith Chewbacca an Stock from Wirf from star treks baby would look like. hmmm
2. Fill in the table below by writing the complementary strand of DNA that would
be formed by each template strand. (4 points)Hint: C pairs with G, and T pairs
with A.
Template Strand
Complementary Strand
GCA AG
I
TTA CG
GAT AC
CGG AT
3. Fill in the table below by writing the strand of mRNA that would be formed
by each strand of DNA. Hint: In RNA, A pairs with U.(4 points)
The complementary strands will be CGU UC (GCA AG), AAU GC (TTA CG), CUA UG (GAT AC) and GCC UA (CGG AT).
What is base complementarity?In genetics, base complementarity can be defined as the match of nucleotide bases formed by hydrogen bonds.
In RNA, the Thymine nucleotide bases are replaced by Uracil nucleotide bases during complementarity.
Base complementary occurs because Adenine always pairs with Thymine, while Guanine pairs with Cytosine.
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Explain the importance of ground tissue in plants?
Answer:
Ground tissue carries out different functions based on the cell type and location in the plant, and includes parenchyma (photosynthesis in the leaves, and storage in the roots), collenchyma (shoot support in areas of active growth)
Explanation:
Two degrees Celsius is equal to how many degrees Fahrenheit?
Answer:
35.6°F
Explanation:
Given:
Two degrees celsiusCalculate:
(2°C × 9/5) + 32 = 35.6°FCelsius Formula:
Celsius to Fahrenheit⇒ ° F = (9/5 × °C) + 32
Fahrenheit to Celsius⇒ ° C = 5/9 ( ° F - 32 )
An analysis of rock types in the area of the Acadia National Park shows a variety of geology in the region. Which evidence would support the theory that rocks in the area of the national park were formed from previous volcanic activity? Select ALL that apply.
A) the presence of igneous rocks
B) the presence of sedimentary rock
C) the presence of metamorphic rock
D) the presence of carbonate rock types
E) the presence of granite rock features
The presence of igneous rocks and granite rock features would support the theory of previous volcanic activity.
If an analysis of rock types in the area of the Acadia National Park shows the presence of igneous rocks and granite rock features, it would support the theory that the rocks in the area were formed from previous volcanic activity.
Igneous rocks are formed from the solidification of magma or lava, which are products of volcanic activity.
Granite is a type of igneous rock that forms from the slow cooling and solidification of magma beneath the Earth's surface.
The presence of sedimentary, metamorphic, or carbonate rock types would not support the theory of previous volcanic activity because these types of rocks are formed through different processes, such as sedimentation, heat and pressure, and chemical reactions.
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#SPJ11
Help me please I’m only have 5 min left
Explanation:
d.Winter
c.cold/high
I hope these are your two answers
Which of the following statements best describes the influence of the ocean on climate change? The ocean absorbs heat and carbon dioxide from the atmosphere.
The ocean releases oxygen into the atmosphere.
The ocean reflects heat from the sun out of the atmosphere.
The ocean absorbs heat and oxygen from the atmosphere.
Answer:
the answer to your question i'm pretty sure is the third one :the ocean absorbs heat and oxygen from the atmosphere.
Explanation: the ocean does not reflect the sun that's why when you get into the water in the beach it is warm if it is sunny out. and releasing oxygen into the air just does not make since. hope that helps
A person who likes social situations and can lack concentration is
A. unstable
B. an extrovert
C. stable
D. an introvert
Answer:
an extrovert
Explanation:
What is the most ancient type of life on Earth?
O eukaryotes
O prokaryotes
• fungi
O protists
Answer:
Fungi
Explanation:
Funtgi is one of the oldest things on earth and also one of the largest populations of things today.
Explain the 4 parts of Darwin's Theory Parts.
1. Variation
2. Overpopulation
3. Adaptation
4. Descent with Modification
Your answer:
Answer:
The key points for the Darwin theory are
Explanation:
Charles Darwin was a British naturalist who proposed the theory of biological evolution by natural selection.
Darwin defined evolution as "descent with modification," the idea that species change over time, give rise to new species, and share a common ancestor.
The mechanism that Darwin proposed for evolution is natural selection. Because resources are limited in nature, organisms with heritable traits that favor survival and reproduction will tend to leave more offspring than their peers, causing the traits to increase in frequency over generations.
Natural selection causes populations to become adapted, or increasingly well-suited, to their environments over time. Natural selection depends on the environment and requires existing heritable variation in a group.
What is evolution?
The basic idea of biological evolution is that populations and species of organisms change over time. Today, when we think of evolution, we are likely to link this idea with one specific person: the British naturalist Charles Darwin.
In the 1850s, Darwin wrote an influential and controversial book called On the Origin of Species. In it, he proposed that species evolve (or, as he put it, undergo "descent with modification"), and that all living things can trace their descent to a common ancestor. What exactly is a species?
Darwin also suggested a mechanism for evolution: natural selection, in which heritable traits that help organisms survive and reproduce become more common in a population over time. What does "heritable" mean?
In this article, we'll take a closer look at Darwin's ideas. We'll trace how they emerged from his worldwide travels on the ship HMS Beagle, and we'll also walk through an example of how evolution by natural selection can work.
Early ideas about evolutionInfluences on Darwin
Darwin and the voyage of the Beagle
Darwin's seminal book, On the Origin of Species, set forth his ideas about evolution and natural selection. These ideas were largely based on direct observations from Darwin's travels around the globe. From 1831 to 1836, he was part of a survey expedition carried out by the ship HMS Beagle, which included stops in South America, Australia, and the southern tip of Africa. At each of the expedition's stops, Darwin had the opportunity to study and catalog the local plants and animals.
Over the course of his travels, Darwin began to see intriguing patterns in the distribution and features of organisms. We can see some of the most important patterns Darwin noticed in distribution of organisms by looking at his observations of the Galápagos Islands off the coast of Ecuador.
PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASEAnswer:
individuals of a species are not identical; traits are passed from generation to generation; more offspring are born than can survive; and only the survivors of the competition for resources will reproduce.
Variation :
Within a population, some traits can be expressed in various ways and make individuals look and behave differently. It can be hair color, body size, eyes color, reaction while facing a danger, ...
Inheritance:
Heritable traits are transmitted to the next generation.
High rate of population growth:
At each generation, the population produces more offspring than what the local environment can support. It leads to substantial mortality.
Differential survival and reproduction:
Individuals with the best combination of traits to survive in the actual environment will produce more offsprings for the next generation
Explanation:
Place a cell where protein synthesis takes place
Answer:
Ribosomes
Ribosomes are the sites in a cell in which protein synthesis takes place
In a healthy person, red blood cells, platelets and plasma proteins are
A- absent in filtrate and urine
B- absent in filtrate and present in urine
C- present in filtrate and urine
D-absent in urine and present in filtrate
In a healthy person without kidney impairment, red blood cells, platelets and plasma proteins are absent in filtrate and urine.
What is glomerular filtration?Glomerular filtration is a process in which the blood is filtered to remove waste products of metabolism from the body leading to the formation of urine.
The glomerulus is a found in the kidney as filtration occurs there.
The product of filtration is known as glomerular filtrate.
In a healthy person, red blood cells, platelets and plasma proteins are absent in filtrate and urine.
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Vascular tissue allows a plant to transport water
against the pull of gravity. Which statement best
describes the trait of vascular tissue in the plant
kingdom?
A. All plants use vascular tissue to transport water.
B. Most plants, but not mosses and other bryo-
phytes, use vascular tissue to transport water.
C. Only woody plants, such as trees and shrubs,
use vascular tissue to transport water.
D. Only herbaceous plants, such as grasses and
garden vegetables, use vascular tissue to trans-
port water
Answer:
the answer is B
Explanation:
Mosses and liverworts are lumped together as bryophytes, plants lacking true vascular tissues, and sharing a number of other primitive traits. They also lack true stems, roots, or leaves, though they have cells that perform these general functions.
All of the following countries were impacted by Chernobyl EXCEPT...
A. Great Britain
B. Brazil
C. Norway
D. Germany
Answer:
Brazil is the Answer.
Explanation:
Brazil was not impacted by chernobyl.
Answer:D. Germany
Explanation:
After the Chernobyl reactor accident areas outside the former Soviet Union especially in Central Europe, South East Europe and parts of Scandinavia were affected by the reactor accident. To date, there is no evidence that the reactor accident has caused adverse health effects due to radiation in Germany.
what process will you see to recover salt, which has dissolved in water?
Answer:
What process will you use to recover salt which has dissolved in water?
Explanation:
You can boil or evaporate the water and the salt will be left behind as a solid. If you want to collect the water, you can use distillation. This works because salt has a much higher boiling point than water. One way to separate salt and water at home is to boil the salt water in a pot with a lid.
How do we describe the links between producers and consumers?
A. Food chain
B. Distribution chain
C. Plant production
D. Sun consumption
Answer:
B
Explanation:
The force of blood in the arteries that creates a throbbing at specific locations of the body is knows as
A. Palpitations
B. Blood pressure
C. Heart beat
D. Pulse
How does recycling save our environment
Answer:
it prevents pollution of the environment
Explanation:
instead of people dumping waste materials they reuse them for better purposes
The photo shows the leaves from one type of vascular
plant. Use the dichotomous key to identify the type of plant
that has these leaves.
1a The leaf is broad and flat.
Go to 3.
1b The leaf is needle-like.
Go to 2.
2a The leaf is a sharp, yellow spine.
Cactus
2b
The leaves are stiff and green
and set at angles to the branch.
Fir
3a The leaf has a smooth edge.
Laurel
3b
The leaf does not have
a smooth edge.
Go to 4.
4a The leaf has a sawtooth edge.
Elm
4b The leaf has a lobed (wavy) edge. English oak
the answer is c elm do to it having a saw blade edged
Several species of finch live on the Galapagos Islands. They are very similar in appearance, but have adapted beaks of different sizes and shapes based on their major food source. Finches with large beaks eat mainly large seeds and cacti. Finches with small beaks eat mainly small seeds and insects. Which of the following best explains the variety of beaks found in finches on the Galapagos Islands? A. Evolution through natural selection always causes a decrease in the species diversity of an ecosystem. B. Biological evolution does not have any effect on the species diversity of an ecosystem. C. Biological evolution only affects the species diversity of plants in an ecosystem. D. Evolution through natural selection can increase the species diversity of an ecosystem
Answer:
D is the correct answer
Explanation:
Evolution by natural selection can only act on traits initially present. In the common ancestor, there would have been one beak, but in the offspring, there would have been variation in beak size and shape. As natural selection acts on that variation, different species end up with traits adapted to different conditions, thus increasing the species diversity.
Give two other names for bacteria capsule and list any four important function
Answer:
Macro-capsule: thickness of 0.2µm or more, visible under light microscope
Microcapsule: thickness less than 0.2µm, visible under Electron microscope
Explanation:
It has several functions: promote bacterial adhesion to surface or interaction with other organisms; act as a permeability barrier, as a defense mechanism against Phagocytosis and/or as a nutrient reserve. Among pathogens, capsule formation often correlates with pathogenicity
correct me if I'm wrong
Answer:
Capsule (also known as K antigen) is a major virulence factor of bacteria, e.g. all of the principal pathogens which cause pneumonia and meningitis, including Streptococcus pneumoniae, Haemophilus influenzae, Neisseria meningitidis, Klebsiella pneumoniae, Escherichia coli, and group B streptococci have polysaccharide capsules on their surface. Nonencapsulated mutants of these organisms are avirulent.
It has several functions: promote bacterial adhesion to surfaces or interaction with other organisms; act as a permeability barrier, as a defense mechanism against phagocytosis and/or as a nutrient reserve. Among pathogens, capsule formation often correlates with pathogenicity.
Explanation:
How many millimetres (equivalent depth) of water are
contained in a soil profile 1 metre deep if the mass water
content of the upper 400 mm depth is 15% and that of the
lower 600 mm is 20%. The bulk density in the upper layer is
1300 kg m- and in the lower layer is 1500 kg m-?. Assume Pw
= 1000 kg m’How much water does the soil contain (in
cubic
metres) per 1.5 hectares of land?
ri
The equivalent depth of water in the soil is 270 mm and the volumetric water content of soil is 5625 cubic meter/ 1.5 hectare of soil.
How can equivalent depth of water in a soil be calculate?The equivalent depth of water in a soil is calculated using the formula below:
equivalent depth of water = water content × depth of soilThe depth of soil profile 1 = 1 m = 1000 mm
The depth of soil profile 2 = 600 mm
Equivalent depth of water in the soil = 15% × 1000 mm + 20% × 600 mm
Equivalent depth of water in the soil = 150 mm + 120 mm
Equivalent depth of water in the soil = 270 mm of water
The volumetric water content of the soil is calculated using the formula below:
Volumetric water content = water content × bulk density of soil/density of water × height of soilHeight of soil profile 1 = 1 m
Height of soil profile 2 = 0.6 m
Volumetric water content of soil profile 1 = 15% × 1300/1000 × 1 m = 0.195 cubic meter/square metre of soil
Volumetric water content of soil profile 1 = 20% × 1500/1000 × 0.6 m = 0.18 cubic meter/square metre of soil
Total Volumetric water content of soil = 0.18 + 0.195 = 0.375 cubic meter/square metre of soil
Converting to cubic meter/hectare of soil:
0.375 cubic meter/square metre of soil
1.5 hectares = 15000 square metre
Volumetric water content of soil = 0.375 × 15000 cubic meter/ 1.5 hectare of soil
Volumetric water content of soil = 5625 cubic meter/ 1.5 hectare of soil
Therefore, the equivalent depth of water in the soil is 270 mm of water and the volumetric water content of soil is 5625 cubic meter/ 1.5 hectare of soil.
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compare and contrast deuterostome and protosome development
Question: compare and contrast deuterostome and protosome development
Explanation:
Dizziness, pale and ashen colored skin, pain and pressure in the jaw or chest are all signs and
symptoms of:
A. A seizure
B. A stroke
C. A heart attack
D. An aneurism