DNA and Evolution [Subject SAT (College Board) Biology]: Questions 121 - 126 of 134

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Question 121

DNA and Evolution
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Question

MCQ▾

Nucleotides in RNA are joined by

Choices

Choice (5)Response

a.

3’6’ phosphodiester bond

b.

3’5’ phosphodiester bond

c.

3’2’ phosphodiester bond

d.

3’4’ phosphodiester bond

e.

None of the above

Question 122

DNA and Evolution
Edit

Question

MCQ▾

Genetic drift defines

Choices

Choice (5)Response

a.

gene frequency in same generation

b.

appearance of recessive genes

c.

gene frequency from one generation to next

d.

None of the above

e.

All of the above

Question 123

DNA and Evolution
Edit

Question

MCQ▾

RNA does not own

Choices

Choice (5)Response

a.

Uracil

b.

Cytosine

c.

Thymine

d.

Adenine

e.

All of the above

Question 124

DNA and Evolution
Edit

Question

MCQ▾

If a functional gene is disrupted while disrupting a restriction site ________ is formed.

Choices

Choice (5)Response

a.

Frame shift mutation

b.

Either of the mutation

c.

Point mutation

d.

Any other kind of mutation

e.

All of the above

Question 125

DNA and Evolution
Edit

Question

MCQ▾

Fossil study is

Choices

Choice (5)Response

a.

Saurology

b.

Palaeontology

c.

Herpetology

d.

Organic evolution

e.

None of the above

Question 126

DNA and Evolution
Edit

Question

MCQ▾

Which of the following statements about the regulation of a metabolic pathway is correct?

Choices

Choice (5)Response

a.

Metabolic regulation always depends on control by hormones

b.

Most metabolic pathways are not regulated.

c.

Most metabolic pathways are regulated.

d.

Regulation of metabolic pathways always involves changing the amount of enzymes.

e.

All of the above