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Genetics and Heredity

Total questions: 30

Worksheet time: 15mins

Name
Class
Date
1.

Is this trait homozygous dominant, homozygous recessive, or heterozygous dominant: Ff

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous Dominant

2.

Is this trait homozygous dominant, homozygous recessive, or heterozygous dominant: aa

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous Dominant

3.

Is this trait homozygous dominant, homozygous recessive, or heterozygous dominant: Dd

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous Dominant

4.

Is this trait homozygous dominant, homozygous recessive, or heterozygous dominant: LL

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous Dominant

5.

Is this trait homozygous dominant, homozygous recessive, or heterozygous dominant: UU

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous Dominant

6.

Is this trait homozygous dominant, homozygous recessive, or heterozygous dominant: ee

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous Dominant

7.

What is the correct definition of Punnett Square?

a)

An organism's genetic makeup or allele combination

b)

An organism's physical appearance

c)

A chart that shows all the possible combinations of alleles

d)

The likelihood that a particular event will occur

8.

What is the correct definition for the term heterozygous?

a)

An organism that has two different alleles

b)

An organism that has the same alleles

c)

The chance a particular event will occur

d)

Inheritance pattern in which the alleles are neither dominant or recessive

9.

What is the correct definition for the term sexual reproduction?

a)

One parent cell divides and creates two new cells

b)

Only creates recessive offspring

c)

One parent creates an offspring that is genetically identical

d)

Genetic material from mother and father combine to create new offspring

10.

What is the correct definition for the term genotype?

a)

An organism that has two identical alleles for a trait

b)

An organism's genetic makeup or allele combination

c)

An organism's physical appearance

d)

An organism that has two different alleles for a trait

11.

What is the correct definition for the term phenotype?

a)

The likelihood an event will occur

b)

Inheritance pattern where the alleles are neither dominant nor recessive

c)

An organism that has two different alleles for a trait

d)

An organism's physical appearance

12.

What is the correct definition for the term probability?

a)

The likelihood a particular event will occur

b)

A chart that shows the possible allele combinations of offspring

c)

An organism's genetic makeup

d)

Inheritance pattern where the alleles are neither dominant nor recessive

13.

Which chromosome pair are the sex chromosomes located on?

a)

16th

b)

21st

c)

23rd

d)

46th

14.

A male has which of the following chromosomes?

a)

XX

b)

X

c)

YY

d)

XY

15.

A female has which of the following chromosomes?

a)

XX

b)

X

c)

YY

d)

XY

16.

A ________________ occupies a specific location on both chromosomes in a pair. ___________________ are the different forms of that same gene.

a)

Gene, homologs

b)

Allele, genes

c)

Homologs, alleles

d)

Gene, alleles

17.

B=black

b=white


A female mouse is bb and a male mouse is BB: what is the phenotype of the female?

a)

bb

b)

white

c)

black

d)

black and white

18.

B=black

b=white


A female mouse is bb and a male mouse is BB: What is the genotype of the male?

a)

Black

b)

Bb

c)

BB

d)

White

19.

B=black

b=white


A female mouse is bb and a male mouse is BB: What are the phenotypes of the offspring (complete dominance)? (Hint: Draw a punnett square)

a)

Black

b)

Black and white

c)

White

d)

None of the above

20.

B=black

b=white


A female mouse is bb and a male mouse is BB: What is the percentage of offspring being homozygous dominant?

a)

25%

b)

75%

c)

100%

d)

0%

21.

B=black

b=white


A female mouse is bb and a male mouse is BB: What is the probability of the offspring being heterozygous?

a)

100%

b)

50%

c)

25%

d)

75%

22.

B=black

b=white


A female mouse is bb and a male mouse is BB: Can a white offspring be heterozygous?

a)

Yes

b)

No

23.

T=Tall

t=Short


In this scenario, tall is dominant and short is recessive. If both parents are heterozygous, what is the probability that the offspring will be tall?

a)

25%

b)

100%

c)

75%

d)

0%

24.

T=Tall

t=Short


In this scenario, tall is dominant and short is recessive. If both parents are heterozygous, what is the probability the offspring will be short?

a)

75%

b)

25%

c)

0%

d)

50%

25.

T=Tall

t=Short


In this scenario, tall is dominant and short is recessive. If both parents are heterozygous, is it possible that the punnett square cross would NOT produce a short offspring?

a)

Yes

b)

No

26.

F=Can fly

f=Cannot fly


Two superheros get married and decide to have a baby. Parent A can fly. His dad could also fly, but his mom could not. Parent B cannot fly no matter how hard she tries: What is the genotype of Parent B?

a)

FF

b)

ff

c)

Ff

27.

F=Can fly

f=Cannot fly


Two superheros get married and decide to have a baby. Parent A can fly. His dad could also fly, but his mom could not. Parent B cannot fly no matter how hard she tries: What is the genotype of Parent A?

a)

FF

b)

ff

c)

Ff

28.

F=Can fly

f=Cannot fly


Two superheros get married and decide to have a baby. Parent A can fly. His dad could also fly, but his mom could not. Parent B cannot fly no matter how hard she tries: What is the possibility that the offspring will be able to fly?

a)

50%

b)

100%

c)

75%

d)

25%

29.

F=Can fly

f=Cannot fly


Two superheros get married and decide to have a baby. Parent A can fly. His dad could also fly, but his mom could not. Parent B cannot fly no matter how hard she tries: What is the probability the offspring will not be able to fly?

a)

50%

b)

100%

c)

75%

d)

25%

30.

In a scenario where both parents are homozygous recessive for a particular trait, 100% of their offspring will be:

a)

homozygous dominant

b)

homozygous recessive

c)

heterozygous dominant