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Naya [18.7K]
4 years ago
11

Name and describe the role of each of the chambers in the rats heart. name the major artery and major vein connected to the hear

t. what is the function of each?
Biology
1 answer:
Nat2105 [25]4 years ago
4 0
Easy:

The four chambers of the heart are the right and left atria, and the right and left ventricles. The main veins connected the heart are the superior and inferior vena cava, the main artery is the Aorta.

The first chamber, (the right atruim) recieves deoxygenated blood and forces it into the right ventricles which forces the blood into the lungs for oxygenation. Then the blood reenters the heart in the left atrium, which forces the blood into the left ventricle and then out the Aorta to the rest of the body.

sorry, but this question needed kind of a long answer to be answered correctly.
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7 0
4 years ago
[ANSWER INCLUDING]
Rus_ich [418]

The mother's genotype can be either X^AX^A or X^AX^a.

For X-linked recessive traits, males (XY) can either be affected or free from the disorder, they cannot be carriers. Females (XX), on the other hand, can be affected, unaffected, or be carriers.

The circled male child is free from the disorder (X^AY) while the females are carriers (X^AX^a).

The male inherited the healthy allele, X^A, from the mother.

The female children inherit the affected allele from their father (who is affected for the disorder) and the other healthy allele from their mother.

This means that the mother cannot be affected for the disease. As it is, the pedigree points that all the children got their healthy alleles from their mother. This does not mean the mother has two healthy alleles though.

Thus, the possible genotype of the mother are X^AX^A and X^AX^a.

More on pedigrees can be found here: brainly.com/question/2952835?referrer=searchResults

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3 years ago
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