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Heredity and Probability Quiz

Total questions: 20

Worksheet time: 19mins

Name
Class
Date
1.

What you see, or the physical appearance.

a)

Genotype

b)

Phenotype

c)

Heterozygous

d)

Homozygous

2.

Which of the following proper genotypes is heterozygous?

a)

BB

b)

bB

c)

bb

d)

Bb

3.

"Aa"

(Pick 2)

a)

Genotype

b)

Phenotype

c)

Heterozygous

d)

Homozygous

4.

Offspring from the AA x Aa cross in a Punnett Square will all express the _____ allele in their phenotype.

a)

Dominant

b)

Recessive

5.

If you cross TT x Tt in a Punnett Square, what are the chances for a homozygous recessive offspring?

a)

100%

4/4

b)

75%

3/4

c)

25%

1/4

d)

0%

0/4

6.

Which trait is least likely to be passed on to a parent's offspring?

a)

Hair Color

b)

Scars

c)

Eye Color

d)

Body Size

7.

You can have a higher than 100% chance for something to occur.

a)

True

b)

False

8.

What you don't see, or the genetic makeup.

a)

Genotype

b)

Phenotype

c)

Heterozygous

d)

Homozygous

9.

A number that describes how likely it is that an event will occur.

a)

Impossibility

b)

Improbably

c)

Possibility

d)

Probability

10.

"aa"

(Pick 2)

a)

Genotype

b)

Phenotype

c)

Heterozygous

d)

Homozygous

11.

Which of the following genotypes are homozygous?

a)

Dd

b)

dd

c)

DDD

d)

DD

12.

What is 10% equal to?

a)

1/10

b)

10/1

c)

1 : 10

d)

10/100

13.

What ratio applies to this cross in a Punnett Square?

Tt x Tt

a)

TT 1 : Tt 2 : tt 3

b)

TT 1 : Tt 1 : tt 1

c)

TT 1 : Tt 2 : tt 1

d)

TT 2 : Tt 0 : tt 2

14.

If an offspring's parents each pass on different alleles for the same trait which are not dominant nor recessive, yet both are visible in their offspring, the offspring has _____ trait(s).

a)

Codominant

b)

Recessive

c)

Homozygous

d)

Corecessive

15.

Where you get your genes from.

a)

Department store

b)

Friends

c)

Swab Test

d)

Parents

16.

Mathematical methods to express probability.

(Multiple Answers)

a)

50%

b)

1/2

c)

There is twice as much of a chance.

d)

1 : 2

17.

What are the chances that I flip a coin twice and get heads each time?

a)

100%

b)

75%

c)

25%

d)

0%

18.

What are the possible traits from a Tt x TT cross in a Punnett Square?

a)

1/2

b)

Some of them

c)

75%

d)

TT 2 : Tt 2 : tt 0

19.

You can have a lower than 0% chance for something to occur.

a)

True

b)

False

20.

Phenotypes

(Multiple Answers, choose carefully)

a)

Thumb Type

b)

Hair Color

c)

Height

d)

Eye Color