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dmitriy555 [2]
3 years ago
13

Meiosis how does sexual reproduction lead to genetic variation answer key

Biology
1 answer:
mylen [45]3 years ago
4 0
Sexual reproduction leads to genetic variation because the sperm and egg that are produced contain different combination of genes than the parent organisms. sexual reproduction involves meiosis which is in the process of a cell doubling its DNA.
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Mammals in Australia are called marsupials, and diverged from the placental mammals very early in mammalian evolution. Australia
mamaluj [8]

Answer:

The correct answer is homologous.

Explanation:

A structure that is derived from a common ancestor is called homologous structure. So homologous structure is the characteristic of divergent evolution that means divergent evolution give rise to homologous structures.

So as the marsupials are mammals that were diverged from placental mammals very early in mammalian evolution, the membranes of skin that allow Australian sugar gliders and North American flying squirrels to glide are homologous because divergent evolution gives rise to homologous structures.

The function of these homologous structures can be the same or can be different. Therefore the correct answer is their membrane are homologous.

7 0
3 years ago
What monomers are found in dna and rna
olganol [36]
Got this from Google hope this helps 

The monomers of DNA and RNA are nucleotides, which are made up of a phosphate group, a five-carbon sugar and a nitrogenous base<span>. In DNA, the </span>nitrogenous bases<span>are </span>adenine<span>, </span>cytosine<span>, guanine and </span>thymine<span>. In RNA, the </span>nitrogenous bases<span> are</span>adenine<span>, guanine, </span>cytosine<span> and </span>uracil<span>.</span>

8 0
3 years ago
Read 2 more answers
A protein has been used by comparative molecular biologist to show the evolutionary path of how organisms did what things in reg
Anit [1.1K]

Answer:

Cytochrome C; it provides evidences that there is similarities in the respiratory pathways for producing ATPs by  all living organisms especially mammals.

Explanation:

Cytochrome c is located in the intermembranes of mitochondria, and it functions in the transfer of  of one electron in electron transport chain,(ETC) needed for  generation of proton motive force;  for generation of energy in the synthesis of ATPs by ATPase synthase  during chemiosmosis. Its allows oxdation-reduction by the switching of its iron ii to iron iii. during electron transports.However its iron atoms does not undergo oxidation with  oxygen. This feature makes it stable and  an ideal carrier of electrons.

Its amino acid sequences is very similar in all living organisms especially  between mammals(e.g man and chimpanzees)with little variation in few amino acid residues due to mutation.This similarity in its amino acids sequences in all  living  organism together with small molecular size makes it ideal  molecular evidence  for studying comparative molecular evidence of  evolution.

This is because it can be used  to trace  the pathways of respiration to synthesize energy, and therefore to conclude that  most  organisms share common ancestry, since a very similar protein sequence in  a structure(Cytochrome c) participated in unique ETC mechanisms  in all, needed for energy synthesis .

5 0
3 years ago
Plants and animals require energy to live. Which statement best describes the difference between the way plants and animals obta
MrRa [10]

Statement D best describes the difference between the way plants and animals obtain energy.

4 0
3 years ago
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Compare the processes of mitosis and meiosis. Which of the following statements is true?
horsena [70]

Answer:

meiosis is for reproduction and mitosis is for growth and repair

Explanation:

4 0
3 years ago
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