AP (Advanced Placement) Biology: Questions 721 - 724 of 868

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Question number: 721

» Skin

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MCQ▾

Question

Fingernail and toenail growth takes place due to

Choices

Choice (5)Response

a.

Dying osteoclasts laying down nail matrix in the lunula

b.

Deposition of hardened sebum

c.

Epithelial cell division

d.

Keratinization of skin

e.

Protein synthesis in the nail groove

Question number: 722

» Microbiology

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MCQ▾

Question

Double-stranded DNA viruses include

Choices

Choice (5)Response

a.

Bacteriophage T4 and variola

b.

Poxvirus and phage

c.

Rotavirus and reovirus

d.

Ebola virus and Corona virus

e.

Rhinovirus and poliovirus

Question number: 723

» Genetics

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MCQ▾

Question

Which of the following statement describes epistasis condition?

Choices

Choice (5)Response

a.

When two pair of non-allelic genes are essential in dominant form to produce a particular character

b.

When all offspring die at birth

c.

When one gene suppresses the effect of other gene

d.

When an organism expresses numerous cellular receptors than normal

e.

When no male offspring are ever born to parents with a certain phenotype

Question number: 724

» Microbiology

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MCQ▾

Question

Which of the following structures targeted by an antibiotic would generally be the least preferable for use in humans?

Choices

Choice (5)Response

a.

Specific bacterial metabolic enzymes

b.

The receptors on cell wall

c.

The bacterial cell wall

d.

The bacterial cell membrane

e.

The bacterial ribosome

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