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mr_godi [17]
4 years ago
11

Muscle cells in the mammalian heart are multinucleate, meaning that multiple nuclei are present in the cytoplasm of a large cell

. Predict what is different about the cell cycle in a muscle cell.
a. The G1and G2 phases are extended.
b. Cytokinesis does not occur.
c. S phase happens twice.
d. M phase is inhibited.
Biology
1 answer:
vampirchik [111]4 years ago
6 0
B. Cytokinesis does not occur
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3 0
3 years ago
A woman's father has ornithine transcarbamylase deficiency (OTD), an X-linked recessive disorder producing mental deterioration
ruslelena [56]

Answer:

Part A - Dd

Part B - 50%

Part C - Option E

Part D - dY

Part E - 50%

Part F - 50%

Explanation:

Given,

Let the allele for dominant trait (wild type) be "D" and the allele for recessive ornithine transcarbamylase deficiency (OTD) be "d"

A X-linked recessive gene affects male offspring in a family tree though a female remains a carrier until it mates with a male with the a recessive diseased allele.

Part A

Father's genotype would be Dd. Hence it will pass d gene  (X diseased gene ) to her daughter.

Thus , Woman's genotype is Dd

Part B

Genotype of Normal man - DD

DD * Dd

DD, Dd, Dd, DD

One of the two males will have  ornithine transcarbamylase deficiency (OTD), an X-linked recessive disorder producing mental deterioration hence, the probability is 50%

Part C

Option E is correct

Only one of the female offspring will have ornithine transcarbamylase deficiency (OTD), an X-linked recessive disorder which will be expressed if other allele is also X linked recessive.

Hence, The chance of being a carrier will be one out of two female offspring i.e 50% and and chance of having OTD is 0%

Part D

dY

Part E

dY * Dd

DY, dY, dD, dd

one out of the two female is diseased. Hence, the probability is 50%

Part F

50%

3 0
3 years ago
These two critters are part of the same species. They are planning on having offspring. You are their genetic counselor. Please
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4 0
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What organisms do cellular respiration? (Hint: It is more than just animals)
Natasha2012 [34]

Answer:

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Explanation:

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