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zheka24 [161]
1 year ago
8

How does sexual selection contribute to the evolution of behavior

Biology
1 answer:
k0ka [10]1 year ago
7 0

Answer:

body

inside your body ........

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Boris Magasanik collected data on the proportion of each base in RNA from different species. To compare the relative amount of e
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Answer:

The nucleic acid is a macromolecule present in living systems in the form of either DNA or RNA, whose molecule consists of many nucleotides which are linked with each other to form long chains. The presence of DNA or RNA in an individual promotes continuity of life. The variability and complexity of nucleic acid are dependent on its constituent molecules as, sugar, a phosphate group, and a nitrogenous base. However, two monocyclic nitrogenous bases were classified purines (adenine:A, guanine:G) and pyrimidines (thymine:T, cytosine:C, and uracil:U).

In addition, RNA is a single-stranded structure which differs from DNA in two aspects, the sugar content of RNA is ribose, and pyrimidine base uracil replaces the thymine base of DNA. A ratio between two strands of DNA can be calculated by using Chargrff's rule which states that "DNA from any cell of all organisms possess a 1:1 ratio (base Pair Rule) of pyrimidine and purine bases'.

The purine to pyrimidine ratio in RNA with different bases is given below in the following table:

Presence of single strand in RNA does not follow chargaff's rule and alters the purine: pyrimidine ratio. The above ratio of each base in the given information is not equal, due to which the ratio of purines to pyrimidines is different. The ratio of DNA and RNA is not equal because DNA has its complementary DNA strand. However, bases in RNA might vary due to its single-strandedness property, but its ratio is dependent on the species.

Therefore, it can be concluded that the ratio of purines to pyrimidines is dependent on the species due to its genetic makeup. Hence, option (c) is correct.

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3 years ago
Why is trisomy more common than monosomy?
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Fetus can survive an extra copy of a chromosome, but being hemizygous is <span>usually fatal</span>
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3 years ago
Where is the DNA for an organisum found?
Masteriza [31]

Answer:

DNA is located in an organisms cells.It depends,however on what kind of organisms it is

Explanation:

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3 years ago
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If you have something like an endoscope except controlled remotely doctors and healthcare workers could in essence use it as a sort of reconnoissance tool for diagnosing injuries and illnesses.

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Santini is observing different leg lengths, shapes, and hair structure of destructive locusts in order to better understand the
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D) Diseccting scope

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U r examining the legs of small incects. I hope i helped! :)

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