Quiz about Genotype, Phenotype, & Punnett Squares

Question 1

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

Accepted Answer

dominant

Answer

recessive

Answer

lower case

Answer

weaker

Question 2

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 3

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

Accepted Answer

gg

Answer

GG

Answer

Gg

Answer

g

Question 4

B = brown fur b = white fur
If two heterozygous parents reproduce, what is the probability that the offspring will have white fur?

Accepted Answer

25%

Answer

0%

Answer

50%

Answer

75%

Question 5

Which of the following genotypes is homozygous recessive?

Accepted Answer

tt

Answer

Tt

Answer

TT

Answer

t

Question 6

Two brown eyed parents with the genotype Bb have a baby. What is the chance the baby has blue eyes?

Accepted Answer

25%

Answer

0 %

Answer

50%

Answer

75%

Question 7

Aa, DD, and yy are all examples of

Accepted Answer

genotypes

Answer

phenotypes

Question 8

What you see, or the physical appearance.

Accepted Answer

Phenotype

Answer

Genotype

Answer

Homozygous

Answer

Heterozygous

Question 9

Aa is

Accepted Answer

heterozygous

Answer

homozygous

Question 10

Which of the following is a phenotype?

Accepted Answer

red hair

Answer

Aa

Answer

heterozygous

Answer

DNA

Question 11

Genotype refers to...

Accepted Answer

the possible combination of alleles in a gene

Answer

physical expression of the genes

Answer

whether an allele is dominant or recessive

Answer

how an organism will appear

Question 12

What is the dominant trait?

Accepted Answer

yellow pea seeds

Answer

green pea seeds

Answer

there is no dominant seed

Answer

both yellow and green are dominant

Question 13

Which statement best supports why many offspring look similar to their parents?

Accepted Answer

Offspring inherit characteristics from both parents.

Answer

Offspring inherit characteristics from one parent.

Answer

Parents choose which characteristics to pass on to their offspring.

Answer

Parents choose to change their appearance to match that of their offspring.

Question 14

If the dominant trait is having freckles (F) and the recessive trait is no freckles (f), which allele combination(s) below would represent a person who has freckles? (select all that apply)

Accepted Answer

Ff

Accepted Answer

FF

Answer

ff

Question 15

What belongs in the last box?

Accepted Answer

rr

Answer

RR

Answer

Rr

Answer

ff

Question 16

Look at the punnett square. What is the probability that the offspring would have a homozygous genotype?

Accepted Answer

50%

Answer

100%

Answer

75%

Answer

25%

Answer

0%

Question 17

If red petals are dominant in flowers, what would a homozygous dominant flower's genotype look like?

Accepted Answer

RR

Answer

Rr

Answer

rr

Question 18

Hair is dominant to no hair. A guinea pig who is hairless will have which genotype?

Accepted Answer

hh

Answer

HH

Answer

Hh

Answer

heterozygous

Question 19

Cindy's genotype is Gg and her husband's genotype is homozygous recessive. What are all of the possible genotype(s) of Cindy and her husband's future child? **SELECT ALL THAT APPLY**

Accepted Answer

Gg

Accepted Answer

gg

Answer

GG

Question 20

Straight hairlines are recessive and widow's peak harilines are dominant. If a man who is homozygous dominant reproduces with a woman with a straight hairline, what are the possible genotype(s) of their children? **SELECT ALL THAT APPLY**

Accepted Answer

Hh

Answer

HH

Answer

hh

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science