How did the idea of geologic change influence Darwin??

Biology

1 answer:

Volgvan3 years ago

5 0

Hope this helps !! I don’t know if it’s the right answer I’m just trying to help :))

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Why is important that scientist present their work to other scientists?

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VashaNatasha [74]

Answer:

我期望1个是正确的答案并问老师好

Explanation:

你可以在书中找到

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3 years ago

Explain why oxygen concentration falls in the tubes

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4 years ago

The pedigree below shows the inheritance of a dominant allele of a gene in a family over several generation. Circles represent f

olga nikolaevna [1]

Complete question:

You will find the pedigree in the attached files

Answer:

The correct option is C) maternal mitochondrial mutations are inherited by all of a mother's offspring.

Explanation:

Mitochondrial inheritance is one of the ways in which a disease or a trait might be inherited from the maternal line.

Most of the DNI is located in the nucleus, but there is also DNI in mitochondria. Sperm cells hardly carry mitochondria, so mitochondrial DNI is mostly inherited from the maternal side. If there exists any mutation in this DNI, the whole progeny of the mutated woman will be affected, as they will get the mother´s mitochondria carrying the mutation. On the contrary, if there is a man affected by a disease caused by a mutation in mitochondrial DNI, non of their descendants will get the disease.

In the exposed pedigree, we can see that the mother is affected by the disease, but the couple had two daughters, and only one of them was affected, while the other one was not. This tells us that the mutation occurred on a nuclear chromosome. If the mutated allele was in mitochondria, both daughters would be affected.

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