The definition of Epistasis in gene biology is Choice D: when the allele of one gene masks the phenotype of another gene
Definition:
When the phenotypic effect of alleles at one gene are masked by alleles of another gene.
In essence, a gene is said to be epistatic when its presence suppresses the effect of a gene at another locus.
It is important to know that Epistatic genes are often called inhibiting genes because of their effect on other genes which are described as hypostatic.
Additionally, there are six common types of epistasis gene interactions:
Dominant Dominant inhibitory, Duplicate dominant, Duplicate recessive, Polymeric gene interaction, Recessive.Read more:
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Which of the following does not describe a source of greenhouse gases?
Steam of fossil fuels
Burning of fossil fuels
Freezing of permafrost
Emissions from landfills
Answer:
i think its C) Freezing of perma frost
Explanation:
The option that does not describe a source of greenhouse gases is the freezing of glaciers. Thus, the correct option is C.
What are greenhouse gases?Greenhouse gases may be defined as those gases that are present in the earth's atmosphere and trap the heat and radiation from the sun and emitted toward the earth.
Such greenhouse gases are responsible for the greenhouse effect that ultimately leads to global warming.
Steaming and burning of fossil fuels and emissions from landfills extremely liberated the high amount of carbon dioxide in the atmosphere which is one of the most potent greenhouse gas.
Therefore, the option that does not describe a source of greenhouse gases is the freezing of glaciers (hailstone). Thus, the correct option is C.
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Give two examples of types of weather that you experience where you live. Give two examples of weather you don’t experience where you live. colorado
Answer:
New Zealand
Explanation:
I live in New Zealand where it's only winter and sometimes rain. There is hardly any sunlight so I will say I lest experience summer ☀️
Joe, age 14, recently fractured his forearm midway between his wrist & elbow. Should his physician be concerned about his epiphyseal plate being affected and causing bone growth to stop?
Joe's doctor must be concerned that his bone growth will be hampered by damage to the epiphyseal plate.
We can arrive at this answer because:
The epiphyseal plate is a set of cartilage present at the end of long bones, such as the bones present in the forearm.The epiphyseal plate is responsible for the longitudinal and lateral growth of the bone.This growth occurs during childhood and adolescence, for this reason, it is essential to maintain the good integrity of this plaque during this time of life.In the case of Joa, who is still a teenager, a fractured forearm can damage his epiphyseal plate and affect his body's bone growth, so his doctor should be concerned about this.
It is important to note that during adult life, the epiphyseal plate is replaced by an epiphyseal line.
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Linnaeus' classification of life only included two categories: animals and plants. Which three kingdoms did he leave out? ( point)
O Insecta, Fungi, and Monera
O Monera, Bacteria, and Protista
O Fungi, Monera, and Protista
O Bacteria, Insecta, and Protista
Answer:
C
Explanation:
These are the three missing kingdoms
Fungi, Monera, and Protista are the three kingdoms he neglected to mention.
What Linnaeus classification?The Linnaean system is based on similarities in apparent physical qualities. This system is a hierarchy of taxa, from the kingdom to the species. Each species is given a unique two-word Latin name. The domain, which was just added and is a larger taxon, is smaller than the kingdom. Seven levels make up Linnaeus' hierarchical classification scheme. They are kingdom, phylum, class, order, family, genus, and species, in order of largest to smallest. Linnaeus created a hierarchy for nature in Systema Naturae. He suggested that the entirety of nature may be divided into three big categories known as kingdoms. Animals, plants, and minerals made up these three kingdoms. He categorizes each of these kingdoms.To learn more about Linnaeus classification refer to:
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True/False: Blood entering the heart from the lungs is oxygen-poor blood.
Answer:true
Explanation:
Because we already used the oxygen from the blood to breathe (i think)
21. Three different processes are occurring in the drawing below. Name each process and describe it.
The three different processes that are occurring in the above drawing are:
1. Process A: Diffusion.
2. Process B: Facilitated diffusion.
3. Process C: Active transport.
Cell transport refers to the movement of ions, molecules, or substances across the cell membrane, either into or out of the cells of a living organism.
From the above diagram, the three (3) different processes that are occurring are:
1. Process A: Diffusion.
Diffusion refers to the movement of gas molecules from a region of high concentration (top) to a region of lower concentration (bottom) until an equilibrium is attained or reached.2. Process B: Facilitated diffusion.
Facilitated diffusion refers to the movement of substances or gas molecules across a cell membrane from a region of high concentration (top) to a region of lower concentration (bottom), especially through the help of transport protein.3. Process C: Active transport.
Active transport involves the movement of substances across the cell membrane from a region of lower concentration to a region of higher concentration, against a concentration gradient and in the presence of oxygen.Read more: https://brainly.com/question/18646362
If 2x 2 + 13x – 7 = 0, then x could equal to which of the following?
Answer:3/13
Explanation:
Answer:
x = 1/2 and x = -7
Explanation:
you need to factor
multiply 2 x -7 to get -14
then find factors of -14 that add to give you 13
14 and -1 work
now rewrite the original equation but replace 13x with 14x - 1x
so 2x^2 + 14x - 1x -7 = 0
now factor by grouping
(2x^2 + 14x) (-1x - 7) = 0
factor the greatest common factor out of each group
2x(x + 7) -1(x + 7) = 0
the factors are (2x - 1) (x + 7) = 0
set each factor equal to zero and solve both for x
2x - 1 = 0 x + 7 = 0
+1 +1 - 7 - 7
2x = 1 x = -7
÷2 ÷2
x = 1/2
When referring to cell division, oncogenes are most like ________ while tumor suppressor genes are most like ________. the brakes on a car; the gas pedal on a car the steering wheel on a car; the gas pedal on a car the gas pedal on a car; the brakes on a car the brakes on a car; the steering wheel on a car
Oncogenes are most like the gas pedal on a car, while tumor suppressor genes are most like the brakes on a car. Oncogenes and tumor suppressor genes are mutated in cancer cells.
Oncogenes are genes overexpressed in cells in which they should not be expressed, thereby leading to cancer.
Some examples of oncogenes are growth factors such as, for example, the Platelet-derived growth factor (PDGF) or Epidermal growth factor (EGF).
Conversely, tumor suppressor genes are genes that act to regulate cell division and replication, thereby their inactivation also leads to cancer.
A well-known example of a tumor suppressor gene is the p53 gene that acts to control cell division and apoptosis (programmed cell death).
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what is the function of the filaments found in ranges 1-2 and 6-7 but no other ranges?
Answer:
What is the function of the filaments found in ranges 1-2 and 6-7 but no other ranges? Elastic (titin) filaments help to protect the muscle from overstretching and also aid in returning it to normal length. This enzyme breaks down acetylcholine into acetic acid and choline.
Explanation:
What are silver carp strengths and weaknesses?
15. Which muscle is anterior to the tibia and helps prevent foot drop?
Answer: Anterior Tibialis muscle
Explanation:
males are more often affected by x-linked traits than are females because ________.
Answer:
A male with a mutation in a gene on the X chromosome is typically affected with the condition. Because females have two copies of the X chromosome and males have only one X chromosome, X-linked recessive diseases are more common among males than females.
Explanation:
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a typical human chromosome contains about how many nucleotides in its dna?
Answer:
50 million nucleotide pairs
The typical human chromosome contains 50 million nucleotide pairs
in its DNA.
What is DNA?Deoxyribonucleic acid (DNA) is a polymer composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid (RNA) are nucleic acids. Alongside proteins, lipids and complex carbohydrates (polysaccharides), nucleic acids are one of the four major types of macro molecules that are essential for all known forms of life.
Hence, The typical human chromosome contains 50 million nucleotide pairs.
in its DNA.
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what is the highest level of organization that ecologists study?
Explanation:
Biosphere. It is the highest level of organization. It is the global ecological system which consists of all the living organisms and other factors which supports life.
A scientist is trying to decide whether an organism is unicellular or multicellular. Which information would help the scientist most to make her decision? A. size of the cells of the organism B. what the organism eats C. how many types of cells are in the organism D. how fast the organism grows
Answer:
how many types if cell are in the organism
if both parents have normal red blood cells then how can the child have sickle cell anemia
PLS HELP ME
Answer:
It's due to hereditary
Explanation:
Hereditary Is something that is passed on from family generations. It can pass on genes and disease's. From past family members in blood lines.
Example: My grandpa had cancer but my mom and dad did not but I still have his blood and when I'm 30 I get diagnosed with cancer and die 1 year later.
Hope this helps :)
homologous chromosomes separate from each other during
Answer:
In anaphase I of meiosis I the homologous chromosomes are pulled apart from each other.
Explanation:
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Miss Hawaii
responsible for the fact that organic molecules no longer spontaneously form on Earth?
Answer:
the experiment with meat sealed in a jar and maggots did not spawn out of thin air
Explanation:
Create a hypothesis: Ben wonders if sugar water will help his vine plant grow taller than it would with regular water. He would like to do an experiment. Create an appropriate hypothesis Ben can test using an experiment. *your hypothesis can be anything as long as it is in the correct format and related to the experiment!
PLZ HELP MEEE I NEED ID NOW(((
Answer:
If Ben waters his vine plant with sugar water, then the plant will not grow as well as it would when watered with regular water.
what is the primary function of cellular respiration?
What type of organisms have differentiated cells?
a.) Multicellular Eukaryotes
b.) Unicellular Eukaryotes
c.) Prokaryotes
d.) All of the above
Answer:
C) Prokaryotes
Explanation:
Prokaryotic cells tend to be small, simple cells, measuring around 0.1-5 μm in diameter. While prokaryotic cells do not have membrane-bound structures, they do have distinct cellular regions
Unicellular organisms generally do not go through any cell differentiation, except unicellular yeasts. While multicellular organisms go through categorized cell division to form differentiated cells, which can perform particular tasks.
Main Points of the Theory of Plate Tectonics
Midocean ridges form at very large large cracks in _______
Molten magma fries through the crack and cools to form new ___________
New Magma from below pushes up, causing the seafloor to ________
Answer:
Midocean ridges form at very large cracks in the ocean.
Molten magma fries through the crack and cools to form new land.
New magma from below pushes up, causing the seafloor to spread (divergent boundary).
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1. Why can't sound waves travel through space?
Answer:
Sound waves are travelling vibrations of particles in media such as air, water or metal. So it stands to reason that they cannot travel through empty space, where there are no atoms or molecules to vibrate
Explanation:
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Fill in the blanks:
transcription
translation
DNA
Match the DNA bases with its
complementary mRNA base:
in DNA: in mRNA:
A
T
С
G
EU
Construct a complementary mRNA strand
of the following strand of DNA:
AGC TCA CTG
Answer:
A - T
T - A
C - G
G - C
TCG AGT GAC
Cattle and other ruminants have evolved to eat grass. What problem has emerged as a result of feeding
corn to cattle instead?
Explanation:
Since corn was very cheap, the farmers raised cattle on corn also believing that the cows would gain more weight, therefore, more product or supply for them to sell. However, this resulted in the cows begin developing a disease called E. Coli, which then leads to social issues.
Answer:
the cattle are more on a risk of health diseases
Explanation:
because corn has nutrients but not enough of each to provide the cattle the nutrients it needs
what cells produce antibodies to help fight infection
Answer:
white blood cells because they are there to fight diseases in the body
which two locations are most likely to have both earthquakes and volcanoes?
A. convergent plate boundaries
B. divergent plate boundaries
C. transform plate boundaries
D. central areas of plates
Answer:
it's both A and B
example the junction between the eurasian plate and indo-Australian plate (region near the Himalayas) that is prone to earthquakes
Explanation:
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Which of the following is a disadvantage of genetic engineering?
May cause negative side effects
Cannot create new organisms
Reduces the nutrition value of food
Increases the scarcity of food in the world
Answer:
may cause negative side effects
Explanation:
Answer:
May cause negative side effects.
Explanation:
I took the test
Genetic Engineering is used to put genes from one organisms into another. The new organism can reproduce. And while it may seem like it's the answer the nutrition value and scarcity of food is in no way impacted. It's not like cloning. Where more are being created in large amounts with similar diets. They can be cross-pollinated with organisms with different diets. So the only obvious answer would be the negative side effects.
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What caused the stickleback population to have less armor and become faster?
Answer:
the changes were caused by different genes in each species.
Explanation:
What are the functions of the plant cell's parts. l will mark you the brainest.
Answer:
There are xylem vessels and pholem cell it is the major building block for the respiration and growth of plants