Quiz about Simple Genetics

Question 1

Aa, DD, bB, yy are all examples of

Accepted Answer

genotypes

Answer

phenotypes

Question 2

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

Accepted Answer

dominant

Answer

recessive

Answer

lower case letter

Answer

both

Question 3

Which of the following is a phenotype?

Accepted Answer

Black fur

Answer

Bb

Question 4

What is the percentage of offspring that have green pods?

Accepted Answer

50%

Answer

100%

Answer

75%

Answer

25%

Question 5

What percentage of the offspring in the punnett square are shown as a hybrid?

Accepted Answer

50%

Answer

100%

Answer

75%

Answer

25%

Question 6

What is the phenotype of the heterozygous parent in the punnett square?

Accepted Answer

yellow

Answer

green

Answer

hybrid

Answer

purebred

Question 7

In this punnett square, which is the dominant trait?
The B stands for bud.

Accepted Answer

purple flower bud

Answer

white flower bud

Answer

dominant

Answer

recessive

Question 8

G = green, g = yellow
The genotype for a yellow plant is...

Accepted Answer

gg

Answer

GG

Answer

Gg

Answer

all of the choices result in yellow

Question 9

having two of the same genes for the trait (sometimes called purebred).

Accepted Answer

homozygous

Answer

hetrozygous

Answer

protein

Answer

chromosome

Question 10

Which is heterozygous?

Accepted Answer

Xx

Answer

XX

Answer

xx

Question 11

Which is homozygous dominant?

Accepted Answer

XX

Answer

xx

Answer

Xx

Question 12

Which is homozygous recessive?

Accepted Answer

xx

Answer

XX

Answer

Xx

Question 13

Which of the following is heterozygous?

Accepted Answer

Mm

Answer

MM

Answer

mm

Question 14

Which of the following is homozygous dominant?

Accepted Answer

RR

Answer

Rr

Answer

rr

Question 15

Which of the following is homozygous recessive?

Accepted Answer

qq

Answer

QQ

Answer

Qq

Question 16

Homozygous is when...

Accepted Answer

the alleles are the same

Answer

the alleles are different

Answer

the alleles are absent

Answer

the alleles are present

Question 17

Heterozygous is when...

Accepted Answer

the alleles are different

Answer

the alleles are the same

Answer

the alleles are absent

Answer

the alleles are present

Question 18

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

Accepted Answer

dominant

Answer

recessive

Answer

lower case letter

Answer

both

Question 19

B = brown fur b = white fur
In the punnett square, what is the probability for white fur?

Accepted Answer

50%

Answer

0%

Answer

25%

Answer

75%

Question 20

T - tall and t = short
In the punnett square below, what belongs in the missing square

Accepted Answer

tt

Answer

Tt

Answer

Bb

Answer

TT

Question 21

In the punnett square shown, what must the genotype of the missing parent be?

Accepted Answer

Bb

Answer

BB

Answer

bb

Answer

Tt

Question 22

Which of the following is a phenotype?

Accepted Answer

black hair

Answer

Aa

Answer

heterozygous genes

Answer

mutated DNA

Question 23

In a certain species of plant, the color purple (P) is dominant to the color white (p).
According to the Punnett Square, what is the probability of an offspring being purple?

Accepted Answer

100%

Answer

25%

Answer

0%

Answer

50%

Question 24

In a certain species of plant, the color purple (P) is dominant to the color white (p).
According to the Punnett Square, what is the probability of an offspring being white?

Accepted Answer

0%

Answer

25%

Answer

100%

Answer

50%

Question 25

Is it possible for a visible trait to skip a generation? Example: Blue eyes

Accepted Answer

Yes

Answer

No

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