Question 1 Select one answer. Red (R) flower color is incompletely dominant to w

Question

Question 1

Select one answer.

Red (R) flower color is incompletely dominant to white (r) flower color. Two pink flowers are crossed. What percentage of their offspring will be pink?

100%

75%

50%

25%

Question 2

Select one answer.

Genotypes provide information about: ______________.

DNA

Carbohydrates

Lipids

Proteins

Question 3

Select one answer.

Hydrangeas are blue in acidic soil with available aluminum, and they are pink in alkaline soil without available aluminum, but they cannot be orange under any soil condition. The color of hydrangeas is affect by

genetics only

the environment only

genetics and the environment

Question 4

Select one answer.

This individual studied peas and is often considered the father of genetics.

Charles Darwin

Carl Sagan

Gregor Mendel

James Watson

Question 5

Select one answer.

A nucleus is built around chromatids which have separated. This occurs during which stage of meiosis?

Metaphase I

Telophase II

Metaphase II

Telophase I

Question 6

Select one answer.

Red flower color is incompletely dominant to white flower color. Two red flowers are crossed. What percentage of their offspring will be red?

75%

25%

100%

50%

Question 7

Select one answer.

Huntington’s disease is an autosomal dominant disorder. A person with the disorder and a person without the disorder mate. Both of these individuals are homozygous. What is the chance that the offspring will develop Huntington’s?

100%

75%

50%

25%

Question 8

Select one answer.

Two heterozygous individuals are crossed. What percentage of their offspring will be heterozygous?

50%

75%

25%

100%

Question 9

Select one answer.

In humans, the condition for normal blood clotting (H) is dominant to hemophilia (h). A male who has normal blood clotting mates with a woman who is a carrier. If they have a son, what is the probability that he will have this condition?

50%

75%

100%

0%

Question 10

Select one answer.

In humans, there are 3 alleles for blood type: A, B, O. A and B are co-dominant over O. A male with O type blood mates with a female with AB type blood. What is the chance that their child will be heterozygous?

100%

0%

50%

75%

25%

Question 11

Select one answer.

Meiosis produces

germ cells

gametes

somatic cells

none of these

Question 12

Select all that apply.

Red (R) flower color is incompletely dominant to white (r) flower color. Which genotype(s) produce red flowers? Select all that apply.

RR

Rr

rr

Question 13

Select one answer.

Genes A and B do NOT sort independently (because they are in the same linkage group; assume recombination does not occur between these two genes). An individual is AaBb and has the A and the b alleles on one copy of the chromosome and the a and the B alleles on the other chromosome. How many different gametes are produced?

1

2

3

4

Question 14

Select one answer.

This trait is _______________.

Sex-linked recessive

Sex-linked dominant

autosomal dominant

autosomal recessive

Question 15

Select one answer.

Sex-linked disorders

are always dominant

are always recessive

can be either dominant or recessive

are neither dominant nor recessive

Explanation / Answer

Question 1 - 50%

Question 2 - Protein

Question 3 - Genetics and environment

Question 4 - Gregor Mendel

Question 5 - Metaphase I

Question 6 - 25%

Question 7 - 50%

Question 8 - 50%

Question 9 - 50%

Question 10 - 50%

Question 11 - germ cells

Question 12 - RR

Question 13 - 1

Question 14 - Autosomal recessive

Question 15 - Can be either dominant or recessive

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