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Lemur [1.5K]
2 years ago
10

Methylation and subsequent deamination of cytosine produces what type of mutation after one round of DNA replication? Methylatio

n and subsequent deamination of cytosine produces what type of mutation after one round of DNA replication? C-to-A transversion G-to-A transition C-to-T transition C-to-T transversion
Biology
1 answer:
Dafna1 [17]2 years ago
7 0

Answer:

The correct answer is "C-to-T transition".

Explanation:

When cytosine is hydrolysed or methylated it could result in the formation of an uracil via the deamination of cytosine. The uracil that is formed in the genomic DNA could be repaired by DNA repair pathways, but it could result in the formation of a tyrosine. These series of mutations are known as "C-to-T transition" because it starts with a cytosine and ends with a tyrosine. This kind of somatic mutations are very studied because they had been found in human breast tumors.

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In the fall of the year, the leaves of some trees change color as chlorophyll begins to break down. What impact does this have o
Rzqust [24]

Answer:

There is no short answer.

Explanation:

The chlorophyll is the pigment that gives the plants' leaves their green colors and it is also responsible for the photosynthesis process which takes place in the mitochondria. In the fall as the leaves change color, the amount of chlorophyll decreases and this impacts the mitochondria as it also decreases the amount of work the mitochondria does.

I hope this answer helps.

4 0
2 years ago
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For each statement, choose the term that completes the sentence. Play many roles in the body and determine many traits. In human
Korvikt [17]

Answer:

The first blank can be correctly filled up with proteins.

Proteins are complex molecules which play many crucial roles in the body such as structural role (actin, myosin, keratin), movement, metabolism (enzymes), signal transduction, transport, and defense. In addition, they also determine many traits of the body as they are the last result of the gene expression.

The second and third blanks can be correctly filled up by DNA (deoxyribose sugar).

DNA is the genetic material in most of the organisms including humans. It contains all the information or blueprint for the synthesis of proteins which in turn help in determining the traits of a person.

The last blank can be filled up by the gene.

A gene refers to the unit of heredity which is present on the chromosome. It refers to the protein coding region of the DNA.

8 0
1 year ago
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Which of these terms apply to human digestive systems: intracellular digestion, extracellular digestion, blind gut, complete gut
artcher [175]

The right answers are complete gut and one-way gut.


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After, there is food in the stomach

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And finally, stool passes through the rectum (anus), where it is stored before defecation, induced by a reflex mechanism.

7 0
2 years ago
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what can be said about the percentage of elements found in significant amounts in earths biosphere lithosphere hydrosphere and a
Eddi Din [679]

The lithosphere, that is, the solid earth is formed of a limited number of elements and is mainly composed of silicon and oxygen. Hydrosphere refers to all the waters on the Earth, that is, oceans, surface water, glaciers, and groundwater. It is formed of a limited number of elements and is mainly composed of hydrogen and oxygen.  

The biosphere is the sum total of all the living matter and is formed of a limited number of elements comprising carbon, oxygen, nitrogen, hydrogen, phosphorus, and calcium. Atmosphere refers to the layers of gas around the planet Earth and is comprised of a limited number of elements, mainly the oxygen and nitrogen.  

Thus, it can be said that very less percentage of elements are found in significant amounts in Earth’s biosphere, lithosphere, hydrosphere, and atmosphere in comparison to the total number of elements listed on the periodic table.  


8 0
1 year ago
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You are holding a coarse-grained crystalline rock with a texture that can be best described as having "interlocking crystals". t
dusya [7]

This rock can be classified as: an igneous rock.

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6 0
2 years ago
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