Answer:
a scientific theory of the origin of species of plants and animals
Crossing over contributes to genetic variation by exchanging chromosomal segments between non-sister chromatids of homologous chromosomes.
What is crossing over?
- Crossing over is the exchange and recombination of genetic components between the homologous chromosomes.
- This occurs in the pachytene stage of the meiosis-1 of the meiotic division.
- Crossing over occurs with the help of an enzyme and the enzyme responsible for crossing over is called Recombinase.
Thus, crossing over contributes to genetic variation by exchanging chromosomal segments between non-sister chromatids of the homologous chromosomes.
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Answer:
B.
Explanation:
If there was a pattern are formed by the rates of evolution in different lineages then indeed the answer would be B.
Answer;
Rabies and Ebola
Explanation;
Rabies and Ebola are the two viruses that infect all the vertebrates included in the interactive.
-Ebola is a virus that cause Ebola hemorrhagic fever that is a viral hemorrhagic fever of humans and other primates. Rabies virus causes rabies in humans and animals, which is a viral infection that mainly spreads through a bite from an infected animal.
The answer is A.Only prokaryotes can reproduce asexually
