Question 8 (1 point) Assume that lzy is a trait characterized by a lack of energ

Question

Question 8 (1 point)

Assume that lzy is a trait characterized by a lack of energy and it results from a mutation in a gene found only in the mitochondrial DNA. A woman who shows normal energy mates with a man who shows lzy, what proportation of their children (male and female) will show normal energy??

Question 8 options:

1/2 of the males and 1/2 of the females

all males and 1/2 of the females

none of the males and all of the females

none of the males and none of the females

all of the males and all of the females

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Question 9 (1 point)

The allele frequency of D is 0.4 and d is 0.6. If the population is in Hardy-Weinberg equilibrium, what is the frequency of of being homozygous recessive?

Question 9 options:

0.16

0.24

0.36

0.48

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Question 10 (1 point)

In a given population of flowers, the frequency of being homozygous recessive for flower color (assuming Hardy-Weinberg equilibrium) is 0.2. What is the frequency of being heterozygous for flower color in this population?

Question 10 options:

0.040

0.302

0.494

0.552

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Question 11 (1 point)

In a given population of flowers, the frequency of being homozygous recessive for flower color (assuming Hardy-Weinberg equilibrium) is 0.2. What is the frequency of being homozygous dominant for flower color in this population?

Question 11 options:

0.040

0.305

0.447

0.552

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Question 12 (1 point)

Nucleosomes are the basic unit of chromosome structure.

Question 12 options:

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Question 13 (1 point)

Chromatin at it's MOST compact takes the form of:

Question 13 options:

a 10nm chromatin fiber.

a 30nm chromatin fiber.

an interphase chromosome.

a metaphase chromosome.

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Question 14 (1 point)

Heterochromatin is uncoiled, actively transcribed DNA.

Question 14 options:

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Question 15 (1 point)

Which of the following is NOT used in the regulation of eukaryotic gene expression?

Question 15 options:

Controlling transcription with specific transcription factors

Histone modifications

Having one promoter drive the expression of several genes

Regulating the length of the poly (A) tail

Post-translational modifications

1/2 of the males and 1/2 of the females

all males and 1/2 of the females

none of the males and all of the females

none of the males and none of the females

all of the males and all of the females

Explanation / Answer

Q12. Nucleosomes are the basic unit of chromosome structure.

Ans.: True.

Q13. Chromatin at it's MOST compact takes the form of:

Ans.: a 30nm chromatin fiber.

Q14. Heterochromatin is uncoiled, actively transcribed DNA.

Ans.: False.

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