Quiz about 9A Punnet Squares

Question 1

Which of the following is a phenotype?

Accepted Answer

red hair

Answer

Aa

Answer

heterozygous

Answer

DNA

Question 2

Dominant alleles are represented by a:

Accepted Answer

capital letter

Answer

Male gene

Answer

lowercase letter

Answer

recessive trait

Question 3

How many boxes would say BB?

Accepted Answer

0

Answer

1

Answer

2

Answer

4

Question 4

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 5

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 6

What allele combination should go in the missing box?

Accepted Answer

Aa

Answer

AA

Answer

aa

Answer

none of these

Question 7

If B = brown hair and b = blonde hair, what is the probability of brown hair?

Accepted Answer

75%

Answer

25%

Answer

50%

Answer

0%

Question 8

Black hair color is dominant to white hair color in mice.  Determine the phenotypic ratio for the offpring of a heterozygous black mouse and a white mouse.

Accepted Answer

2 Black: 2 White

Answer

4 Black: 0 White

Answer

3 Black: 1 White

Answer

0 Black: 4 White

Question 9

In a certain species of rabbits, black coat color is dominant over brown coat color. What is the probability of producing a rabbit with brown coat color from two rabbits that are both heterozygous for black coat color?

Accepted Answer

25%

Answer

0%

Answer

75%

Answer

100%

Question 10

What is the dominant trait here?

Accepted Answer

Brown eyes

Answer

Bb

Answer

Recessive eyes

Answer

Blue eyes

Question 11

What allele combination should go in the missing box?

Accepted Answer

Aa

Answer

AA

Answer

aa

Answer

none of these

Question 12

If B = brown hair and b = blonde hair, what is the probability of brown hair?

Accepted Answer

75%

Answer

25%

Answer

50%

Answer

0%

Question 13

In rabbits, black fur (B) is dominant over brown fur (b). If a rabbit has brown fur, what can you conclude about its genotype?

Accepted Answer

It is bb.

Answer

It is BB.

Answer

It is Bb

Answer

It is brown

Question 14

A ________________________ is used to predict the possible genotype from certain parents

Accepted Answer

Punnett Square

Answer

Mendel Grid

Answer

Genetic Tic Tac Toe

Answer

Pedigree Plot

Question 15

What is the phenotype of the offspring? (A-Brown hair; a-blond hair)

Accepted Answer

75 % Brown Hair and 25% Blond Hair

Answer

50 % Brown Hair and 50% Blond Hair

Answer

25 % Brown Hair and 75% Blond Hair

Answer

0% Brown Hair and 100% Blond Hair

Question 16

What percent of offspring will have the recessive trait?

Accepted Answer

25

Answer

50

Answer

75

Answer

100

Question 17

What is a phenotype

Accepted Answer

The physical trait

Answer

The genetic make up (code)

Question 18

What is the probability of heterozygous offspring?

Accepted Answer

50%

Answer

25%

Answer

0%

Answer

100%

Question 19

Which of the following genotypes is homozygous dominant?

Accepted Answer

AA

Answer

A

Answer

Aa

Answer

aa

Question 20

What is the probability of homozygous dominant offspring?

Accepted Answer

0%

Answer

100%

Answer

50%

Answer

25%

Question 21

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%

9A Punnet Squares

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science