Quiz about Punnett Squares

Question 1

Complex molecule that carries genetic information that defines an organism's traits. It is stored in the nucleus.

Accepted Answer

DNA

Answer

Protein

Answer

RNA

Answer

Glucose nucleic acid (GNA)

Question 2

Dominant alleles are represented by a:

Accepted Answer

capital letter

Answer

Male gene

Answer

lowercase letter

Answer

recessive trait

Question 3

Aa, DD, bB, yy are all examples of

Accepted Answer

genotypes

Answer

phenotypes

Question 4

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

Accepted Answer

dominant

Answer

recessive

Answer

lower case letter

Answer

both

Question 5

What you see, or the physical appearance.

Accepted Answer

Phenotype

Answer

Genotype

Answer

Homozygous

Answer

Heterozygous

Question 6

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 7

Which of the following would be a phenotype?

Accepted Answer

red hair

Answer

Aa

Answer

heterozygous

Answer

DNA

Question 8

Which of the following genotypes is Purebred? Select 2 answers.

Accepted Answer

AA

Accepted Answer

aa

Answer

aA

Answer

Aa

Question 9

Which of the following genotypes is heterozygous?

Accepted Answer

Bb

Answer

BB

Answer

bb

Answer

B

Question 10

Which of the following genotypes is homozygous dominant?

Accepted Answer

YY

Answer

Yy

Answer

yY

Answer

yy

Question 11

Which of the following genotypes is homozygous recessive?

Accepted Answer

tt

Answer

Tt

Answer

TT

Answer

tT

Question 12

Who is considered the "father of genetics"?

Accepted Answer

Gregor Mendel

Answer

Reginald Punnett

Answer

James Watson

Answer

Charles Darwin

Question 13

What are the phenotype percentages of the offspring?

(A-Brown fur color; a-white fur color)

Accepted Answer

75 % Brown fur and 25% White fur

Answer

50 % Brown fur and 50% White fur

Answer

25 % Brown fur and 75% White fur

Answer

0% Brown fur and 100% White fur

Question 14

If T=Tall & t=short, what is the genotypic ratio?

Accepted Answer

1:2:1

Answer

1:3

Answer

3:1

Answer

2:2

Question 15

A heterozygous yellow pea plant's genotype would be:

Accepted Answer

Yy

Answer

YY

Answer

yy

Answer

Yg

Question 16

B - black, b - brown. Two black mice mate and have some black and some brown mice. What is the genotype of the parents?

Accepted Answer

Bb x Bb

Answer

BB x Bb

Answer

BB x bb

Answer

Bb x bb

Question 17

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 18

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 19

What is the yellow seed genotype?

Accepted Answer

AA or Aa

Answer

aa

Answer

Aa

Answer

AA

Question 20

What is the dominant trait?

Accepted Answer

yellow pea seeds

Answer

green pea seeds

Answer

there is no dominant seed

Answer

Jolly green giant

Question 21

What is the genotypic ratio here?

Accepted Answer

BB = 25% Bb = 50% bb = 25%

Answer

25% blue eye 75 % brown eye

Answer

BB= 50 % bb = 50%

Answer

All brown eye

Question 22

What genotype would go in box 2?

Accepted Answer

Bb

Answer

BB

Answer

bb

Question 23

Which of the following is homozygous dominant?

Accepted Answer

MM

Answer

Jj

Answer

Rr

Answer

ee

Question 24

Which of the following is homozygous recessive?

Accepted Answer

tt

Answer

Tt

Answer

TT

Answer

T

Question 25

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

Accepted Answer

25%

Answer

0 %

Answer

50%

Answer

75%

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