AP (Advanced Placement) Biology: Questions 783 - 786 of 868

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Question number: 783

» DNA and Protein Synthesis

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MCQ▾

Question

During DNA replication, fragments of DNA are synthesized in the lagging strand called

Choices

Choice (5)Response

a.

RNA fragments

b.

Kornberg fragments

c.

Okazaki fragments

d.

Double helix fragments

e.

Satellite DNA

Question number: 784

» Specialized Cell and Tissues

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MCQ▾

Question

During the transmission of an action potential across a neuron, what occurs in the depolarization phase?

Choices

Choice (5)Response

a.

The sodium-potassium pumps working sops for about 10 milliseconds.

b.

Sodium efflux from the cell and potential drops the polarity to –70 mV.

c.

The sodium-potassium pumps raise the polarity to –70 mV.

d.

Sodium rapidly enters the cell, raising the polarity to + 30 mV.

e.

The potassium channels open, and K+ diffuses out of the cell.

Question number: 785

» Digestive & Excretory Systems

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MCQ▾

Question

The sequence wise layer anatomy of the intestine, from the lumen to outside, is

Choices

Choice (5)Response

a.

Mucosa sub mucosa Muscularis serosa mesentery

b.

Mucosa sub mucosa serosa Muscularis mesentery

c.

Serosa mucosa sub mucosa mesentery Muscularis

d.

Sub mucosa mucosa serosa Muscularis mesentery

e.

Mesentery sub mucosa → mucosa serosa Muscularis

Question number: 786

» Genetics

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MCQ▾

Question

Genes those are present on different chromosome pairs

Choices

Choice (5)Response

a.

Are not able to express themselves

b.

Will always appear together in gametes

c.

Are always linked

d.

Are complementary to each other

e.

Will assort independently

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