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rodikova [14]
3 years ago
5

How are nondisjunction and polyploidy related?

Biology
1 answer:
sergiy2304 [10]3 years ago
6 0

Answer:

Polyploidy arises as the result of total nondisjunction of chromosomes during mitosis or meiosis.

Explanation:

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Instructions on how to control your cells are contained in what part of the DNA?
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a

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Which statement about anorexia nervosa and bulimia nervosa is true?
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a. Approximately half of those with anorexia nervosa go on to develop bulimia nervosa, indicating that the two disorders may not be distinct but may represent phases of the same eating disorder.

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The way living things are organized can be represented on a chart. A portion of the organization chart is shown below: (1 point)
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The answer is Cells.

Explanation:

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3 years ago
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Which factor determines if someone has brown eyes or green eyes A. several dominant alleles B. one allele from each parent C. on
Romashka [77]

Answer:

B One allele from each parent

Explanation:

You have dominant genes (brown eyes) and recessive genes (green eyes)

In order for a child to be born with brown eyes only one parent needs to have brown eyes. Having green eyes is recessive so either both parents need to have green eyes or neither of them needs to have them. But if one parent has green eyes and the other has brown eyes, then the brown eyed gene will almost always  dominate the green eyed one.

I hope this helps! :)

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Describe the structure of mitochondria and explain their role in respiration .
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The mitochondria is a double membraned organelle, the inner of these membranes is invaginated to form structures called cristae. The fluid inside is called the mitochondrial matrix. The mitochondria has a pivotal role in the creation of ATP in aerobic cellular respiration. Glycolysis occurs outside the mitochondria, producing pyruvate and ATP, the pyruvate endures the link reaction on its way into the mitochondrial matrix and turns into acetyl co enzyme A. This acetyl group is used in the matrix in what is called Krebs cycle, where the oxidation of acetyl groups is coupled with the reduction of hydrogen carriers. The products of Krebs cycle are then transported to the electron transport chain on the cristae where the reduced NADH and FADH are then oxidized. The remaining hydrogen electrons are transported down the chain where an oxygen molecule is reduced to water. Chemiosmosis also occurs at the electron transport chain, in which hydrogen protons move down the concentration gradient (from the inner mitochondrion membrane) through an ATP synthase where ATP is generated. The multiple folds inside the mitochondria which are the cristae, mean that there is plenty of surface area for cellular respirations to occur at. 
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