Quiz about Genetics

Question 1

Select ALL recessive alleles.

Accepted Answer

u

Accepted Answer

b

Answer

H

Answer

Z

Question 2

Select ALL examples of homozygous alleles below.

Accepted Answer

AA

Accepted Answer

nn

Accepted Answer

pp

Answer

Bb

Answer

Rr

Question 3

Select ALL dominant alleles.

Accepted Answer

Z

Accepted Answer

H

Answer

u

Answer

b

Question 4

Select ALL examples of heterozygous alleles below.

Accepted Answer

Rr

Accepted Answer

Bb

Answer

AA

Answer

nn

Answer

pp

Question 5

Brown eyes are dominant over blue eyes. What is the probability that the offspring will have brown eyes in this cross?

Accepted Answer

50%

Answer

25%

Answer

75%

Answer

100%

Question 6

Which of the following is a PHENOTYPE for flower color in pea plants?

Accepted Answer

Purple

Answer

Pp

Answer

PP

Question 7

Cross 2 heterozygous tall pea plants. Tall (T) is dominant to short (t). What fraction of the offspring do you predict will be tall?

Accepted Answer

3/4

Answer

1/4

Answer

2/4

Answer

4/4

Question 8

The dominant trait is

Accepted Answer

yellow pea seeds

Answer

green pea seeds

Answer

there is no dominant seed

Answer

Jolly green giant

Question 9

In humans, freckles (F) on the skin are dominant to no freckles (f). If a heterozygous parent and a recessive parent conceive, what is the chances of having a child with NO FRECKLES?

Accepted Answer

50%

Answer

0%

Answer

100%

Question 10

Scientific study of how traits are passed to offspring through genes

Accepted Answer

Genetics

Answer

Heredity

Answer

Inheritance

Answer

Allele

Question 11

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 12

What is the yellow seed genotype?

Accepted Answer

AA or Aa

Answer

aa

Answer

Aa

Answer

AA

Question 13

Where is DNA found in a cell?

Accepted Answer

on chromosomes

Answer

on the cell wall

Answer

on the cell membrane

Answer

on the chloroplast

Question 14

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 15

Which of the following are PHENOTYPES?

Accepted Answer

black fur

Accepted Answer

purple eyes

Accepted Answer

green skin

Answer

Aa

Answer

homozygous recessive

Question 16

This type of inheritance pattern is a MIXTURE of both traits. Example, one flower is red and the other flower is white but they reproduce a pink offspring.

Accepted Answer

incomplete dominance

Answer

co-dominance

Answer

complete dominance

Answer

recessive pattern

Question 17

Which of the following are GENOTYPES? (select all correct answers)

Accepted Answer

homozygous dominant

Accepted Answer

heterozygous

Accepted Answer

BB

Answer

black hair

Answer

blue eyes

Question 18

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 19

Dalmatian dogs sometimes become deaf due to a recessive trait they may inherit. For this reason, some Dalmatian owners will not let their dogs have puppies if they are deaf. Allowing only Dalmatians that can hear to produce offspring is an example of

Accepted Answer

Selective Breeding

Answer

Sexual Reproduction

Answer

Asexual Reproduction

Answer

Learned Traits

Question 20

The pedigree shown gives the genotype and phenotype of three generations of Labrador retrievers. Which genotypes are NOT possible for Offspring 7, 8, and 9 to receive?

Select two of the four answers.

Accepted Answer

eebb

Accepted Answer

EEBB

Answer

EeBB

Answer

eeBB

Question 21

This is a pedigree that follows blue eyes which is a recessive trait. What is the phenotype of the mother (circle) in generation 1?

Accepted Answer

Blue

Answer

Brown

Answer

1 brown allele and 1 blue allele

Question 22

In this pedigree, which gender can be carriers of colorblindness and not have it?

Accepted Answer

Just females

Answer

Just males

Answer

Both sexes

Question 23

The model explains how genetic information is transferred in a radish plant through asexual and sexual reproduction. What makes the offspring produced through asexual reproduction different from those produced through sexual reproduction?

Accepted Answer

Offspring produced through asexual reproduction carry genes from a single parent.

Answer

Offspring produced through asexual reproduction carry genes from two parents.

Answer

Offspring produced through asexual reproduction are exact copies of both parents.

Answer

Offspring produced through asexual reproduction are a unique genetic combination of both parents.

Question 24

This is the pedigree for a recessive disorder, so two recessive alleles are needed for the disorder to be present. Carriers have both the dominant and the recessive allele.

Based on the pedigree, what is the probability that individual 18 will have the disorder?

Accepted Answer

50%

Answer

25%

Answer

75%

Answer

100%

Genetics

25 questions

Select ALL recessive alleles.

Select ALL examples of homozygous alleles below.

Select ALL dominant alleles.

Select ALL examples of heterozygous alleles below.

Brown eyes are dominant over blue eyes. What is the probability that the offspring will have brown eyes in this cross?

Which of the following is a PHENOTYPE for flower color in pea plants?

Cross 2 heterozygous tall pea plants. Tall (T) is dominant to short (t). What fraction of the offspring do you predict will be tall?

The dominant trait is

In humans, freckles (F) on the skin are dominant to no freckles (f). If a heterozygous parent and a recessive parent conceive, what is the chances of having a child with NO FRECKLES?

Scientific study of how traits are passed to offspring through genes

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