Mendel and Hereditary [Subject SAT (College Board) Biology]: Questions 1 - 6 of 76

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Question number: 1

Mendel and Hereditary
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Question

MCQ▾

Trisomy in humans is the result of

Choices

Choice (5)Response

a.

x-inactivation.

b.

Nondisjunction.

c.

Polygenic inheritance.

d.

Epistasis.

e.

Pleiotropy.

Question number: 2

Mendel and Hereditary
Edit

Question

MCQ▾

________ refers to one gene affecting many traits.

Choices

Choice (5)Response

a.

Nondisjunction

b.

Polygenesis

c.

Epistasis

d.

Linkage

e.

Pleiotropy

Question number: 3

Mendel and Hereditary
Edit

Question

MCQ▾

In a heterozygous monohybrid cross, the dominant trait can be expressed in the phenotype of the F1 ________ of the time.

Choices

Choice (5)Response

a.

Percent

b.

Percent

c.

Percent

d.

Percent

e.

Percent

Question number: 4

Mendel and Hereditary
Edit

Question

MCQ▾

Homologous chromosomes line up in pairs in

Choices

Choice (5)Response

a.

Metaphase of mitosis.

b.

Metaphase I.

c.

Prophase of mitosis.

d.

Interphase.

e.

Metaphase II.

Question number: 5

Mendel and Hereditary
Edit

Question

MCQ▾

Which of the following blood types are possible if the parents are A and O blood types?

Choices

Choice (5)Response

a.

O only

b.

A and O

c.

A, B, and O

d.

B and O

e.

AB only

Question number: 6

Mendel and Hereditary
Edit

Question

MCQ▾

A ratio of in the phenotype of an organism occurs when

Choices

Choice (5)Response

a.

Crossing over has occurred in Anaphase II.

b.

The alleles are incompletely dominant.

c.

Only recessive traits are involved.

d.

Only dominant traits are involved.

e.

Alleles segregate during meiosis.