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Quiz - Genetics

Total questions: 25

Worksheet time: 14mins

Name
Class
Date
1.

What types of living organisms have no genetic material at all?

a)

Insects

b)

Bacteria

c)

Plants

d)

All living organisms have genetic material

2.

What is heredity?

a)

A kind of genetic disorder

b)

The way that DNA divides

c)

A trait you inherit from your parents

d)

The passing down of traits from parents to children

3.

Which of the following statements is true?

a)

Your set of DNA is the same as your siblings'

b)

Your set of DNA is the same as your mother's

c)

Your set of DNA is the same as your father's

d)

Your set of DNA is unique to you

4.

According to this punnett square shown, the recessive trait is:

a)

Wrinkled peas

b)

Green pods

c)

Yellow pods

d)

Purple seeds

5.

Which of the following is showing a genotype that would be described as homozygous recessive (purebred)

a)

Dd

b)

dd

c)

DD

d)

dD

6.

The physical appearance of an organisms is also referred to as:

a)

genotype

b)

phenotype

c)

chromosome

d)

incomplete dominance

7.

The genotype is:

a)

the genetic makeup of an organism.

b)

the physical appearance of an organism.

c)

the deletion of a chromosome.

d)

the passing of traits from parent to offspring.

8.

Which of the following is true regarding inheriting traits:

a)

Dominant traits are less likely to be seen.

b)

You must have only one recessive gene in order to express the trait.

c)

The recessive trait always is seen over the dominant trait.

d)

Dominant traits are more likely to be expressed because you only need one gene.

9.

An allele is:

a)

different genes that code for different characteristics.

b)

different chromosomes.

c)

different forms of the same gene.

d)

section of the nucleus that forms chromosomes.

10.
The mathematical chance that something will happen is known as...
a)
chance
b)
luck
c)
probability
11.
An allele or gene that always shows is
a)
recessive
b)
dominant
c)
hidden
d)
present
12.

G = dominant green and g = recessive yellow

A fish has a Gg genotype, what will its phenotype be?

a)

yellow

b)

green

c)

greenish-yellow

d)

red

13.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
14.
A ________________________ is used to predict the possible genotype from certain parents
a)
Mendel Grid
b)
Genetic Tic Tac Toe
c)
Punnett Square
d)
Pedigree Plot
15.
What do you call a section of DNA that codes for a specific trait?
a)
nucleus
b)
chromosome
c)
gene
d)
DNA
16.
Which of the following is homozygous dominant?
a)
BB
b)
Bb
c)
bb
17.
Which of the following is homozygous recessive?
a)
AA
b)
Aa
c)
aa
18.
Which of the following is heterozygous?
a)
TT
b)
Tt
c)
tt
19.
Heterozygous is when...
a)
the alleles are the same
b)
the alleles are different
c)
the alleles are absent
d)
the alleles are present
20.
G = green, g = yellow
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
21.

Red fruit (R) is dominant to yellow fruit (r) in a species of apples. What alleles should go in box 1?

a)

RR

b)

Rr

c)

rr

22.

How many alleles for the same gene do offspring get?

a)

1

b)

2

c)

23

d)

100's to 1000's

23.
In the punnett square shown, what must the genotype of the missing parent be?
a)
BB
b)
Bb
c)
bb
d)
Tt
24.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous
d)
DNA
25.
What is a punnett square?
a)
graph used to predict the possible genotypes of offspring in a given cross
b)
a graph used to predict the possible birth rate of offspring.
c)
a graph used to predict the possible behavioral characteristics an offspring could have
d)
None of the above