Oxygen is recycled in the

Biology

1 answer:

mixer [17]4 years ago

4 0

C. None of these

it's the oxygen cycle which the option isn't available

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A student is creating a poster to share out with the class describing the chemical and physical properties and changes for alumi

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The student put under the "physical changes" portion of the poster about aluminum is option "B".

<h3>What is the boiling point and melting point of aluminum?</h3>

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It's normal boiling point is 2792 Kelvin, 2579 degrees Celsius, or 4566 degrees Fahrenheit.

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

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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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