Free Printable 7th Genetics Quiz 1

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7th Genetics Quiz 1

Total questions: 20

Worksheet time: 18mins

Name

Class

Date

What is genetics?

Study of genes and how traits are passed down from one generation to the next

Study of a crime scene

Study of animals and plants who live in bodies of water

Study of science

Genotype refers to the ...

physical expression of the genes

the possible combination of alleles in a gene

whether an allele is dominant or recessive

how an organism will appear

An offspring will receive how many alleles from each parent to determine a specific trait?

one

two

three

five

Which of the following is a phenotype?

Blue eyes

having two of the same genes for the trait (sometimes called purebred).

homozygous

hetrozygous

protein

chromosome

having two different genes for a trait (sometimes called hybrid).

protein

homozygous

heterozygous

genotype

Magda is a tall, 11 year old drummer. She has a scar on her right cheek. She is good at swimming. Which of her traits did Magda most likely inherit?

height

the scar

ability to swim

ability to play drums

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

0 %

25%

50%

75%

G = green, g = yellow
The genotype for a yellow plant is...

all of the choices result in yellow

10.

Punnett Square #1

In plants tall is dominant to short.

Cross two heterozygous plants.

What is the genotypic ratio?

1:2:1

2:2

3:1

11.

Which of the choices are dominant? (there may be more than one)

12.

Which of the choices is recessive?

13.

If a black guinea pig (BB) and a white guinea pig (bb) mate, there is a ______ chance that a white guinea pig will be born.

25%

50%

75%

100%

14.

Blue-eyed is a ______.

genotype

phenotype

15.

A dominant allele is represented by a ______ letter.

lower-case

capital

16.

A recessive allele is represented by a ______ letter.

lower-case

capital

17.

Which of the following genotypes is heterozygous?

18.

If T means that the baby will be tall, how many of the babies are going to be short (t)?

0 in 4

1 in 4

2 in 4

4 in 4

19.

In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?

25%

50%

75%

20.

Who is Gregor Mendel?

Ms. P's father

The father of pea plants

The father of Modern Genetics

The science guy

Reset

7th Genetics Quiz 1

Total questions: 20

Worksheet time: 18mins

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