Quiz about Genetics

Question 1

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 2

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 3

Which of the following alleles is homozygous (purebred) recessive?

Accepted Answer

tt

Answer

Tt

Answer

TT

Answer

t

Question 4

Aa, DD, bB, yy are all examples of

Accepted Answer

genotypes

Answer

phenotypes

Question 5

Which of the following genotypes is homozygous dominant?

Accepted Answer

AA

Answer

A

Answer

Aa

Answer

aa

Question 6

Which of the following genotypes is heterozygous?

Accepted Answer

Bb

Answer

BB

Answer

bb

Answer

B

Question 7

In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?

Accepted Answer

RR or Rr

Answer

rr

Answer

R

Answer

RR

Question 8

What you see, or the physical appearance.

Accepted Answer

Phenotype

Answer

Genotype

Answer

Homozygous

Answer

Heterozygous

Question 9

How many alleles (letters) do each person carry for a trait?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 10

How many alleles (letters) does a child get from each parent for each trait?

Accepted Answer

1

Answer

2

Answer

3

Answer

4

Question 11

Which of the following is a phenotype?

Accepted Answer

red hair

Answer

Aa

Answer

heterozygous

Answer

DNA

Question 12

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 13

W=white hair
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?

Accepted Answer

all

Answer

none

Answer

3/4

Answer

1/2

Question 14

A dog gives birth to 5 puppies. What percentage of the chromosomes does each puppy share with the mother?

Accepted Answer

50%

Answer

25%

Answer

75%

Answer

100%

Question 15

Axial flowers is dominant to terminal. What is the probabilty of offspring being terminal?

Accepted Answer

1/4

Answer

2/4

Answer

3/4

Answer

4/4

Question 16

The genotypic ratio here is

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 17

How many boxes would say BB?

Accepted Answer

0

Answer

1

Answer

2

Answer

4

Question 18

What is the genotypic ratio here

Accepted Answer

TT = 25% Tt= 50% tt=25%

Answer

all tall

Answer

TT= 75% tt = 25%

Answer

Tt = 100%

Question 19

The dominant trait is

Accepted Answer

yellow pea seeds

Answer

green pea seeds

Answer

there is no dominant seed

Answer

Jolly green giant

Genetics

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