AP (Advanced Placement) Biology: Questions 557 - 562 of 1309

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Question 557

Question MCQ▾

A segment of DNA has 120 adenine and 120 cytosine bases. The total number of nucleotides present in the segment is

Choices

Choice (5)Response

a.

360

b.

120

c.

480

d.

240

e.

All of the above

Edit

Question 558

Question MCQ▾

Which of the following is appropriate for experiment on linkage?

Choices

Choice (5)Response

a.

aaBB x aaBB

b.

AAbb x AaBB.

c.

AaBb x AaBb

d.

AABB x aabb

e.

None of the above

Edit

Question 559

Question MCQ▾

Mr. Kapoor has Bb autosomal gene pair and d allele sex-linked. What shall be proportion of Bd in sperms?

Choices

Choice (5)Response

a.

b.

Zero

c.

d.

e.

All of the above

Edit

Question 560

Question MCQ▾

Hereditary variations can be

Choices

Choice (5)Response

a.

not heritable

b.

influence by the environment

c.

stable

d.

impermanent

e.

All of the above

Edit

Question 561

Question MCQ▾

Phenotype of an organism is the result of

Choices

Choice (5)Response

a.

Environmental changes and sexual dimorphism

b.

Cytoplasmic effects and nutrition

c.

Genotype and environment interactions

d.

Mutations and linkages

e.

All of the above

Edit

Question 562

Question MCQ▾

A promoter site on nucleic acid DNA

Promoter Site

Choices

Choice (5)Response

a.

Initiates transcription

b.

Transcribes repressor

c.

Codes for RNA

d.

Regulates termination

e.

All of the above

Edit