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Worksheets

Heredity (2)

Total questions: 16

Worksheet time: 8mins

Name
Class
Date
1.

Every living thing has genetic information stored in the form of

a)

Ribosomes

b)

DNA

c)

Chloroplast

d)

Mitochondria

2.

If two alleles are the same for a certain trait they are considered

a)

Homozygous

b)

Twins

c)

Heterozygous

d)

Common

3.

Sections of DNA that have instructions for a specific trait are called _______________

a)

Blueprints

b)

Genes

c)

Heterozygous

d)

Fragments

4.

Chromosomes are

a)

Found in the mitochondria

b)

Made of 20 pairs

c)

Long strands of DNA that contain many genes

d)

Bundles of DNA that contain only one gene each

5.

The passage of genetic instructions from one generation to the next is known as

a)

Alleles

b)

Ancestry

c)

Heredity

d)

Variation

6.

If a certain trait has two different alleles (one dominant and one recessive) it is called __________________

a)

Homozygous

b)

Confused

c)

Differentiated

d)

Heterozygous

7.

If a gene is always expressed or always shown with a capital letter it is

a)

Bossy

b)

Recessive

c)

Yelling

d)

Dominant

8.

This variation of a gene can only be expressed if it is received from both parents

a)

Shy

b)

Heterozygous

c)

Variation

d)

Recessive

9.

Different versions of the same gene are called

a)

Jeans

b)

Editions

c)

Varieties

d)

Alleles

10.
The physical traits of an organism
a)
Teletype
b)
Genotype
c)
Mesotype
d)
Phenotype
11.
A unit of genetic material that determines a trait
a)
Carrier
b)
DNA
c)
chromosome
d)
Gene
12.
____________________ are used to make predictions about the genotypes and phenotypes of offspring.
a)
Dominant Squares
b)
Punnett Grids
c)
Punnett Squares
d)
Recessive Squares
13.
What is Bb?
a)
Homozygous
b)
Heterozygous
c)
Recessive
d)
Alleles
14.
What are the two genotypes that show the DOMINANT Phenotype
a)
GG, gg
b)
GG, Gg
c)
Gg, gg
15.
What is the only Genotype that shows the RECESSIVE Phenotype?
a)
GG
b)
Gg
c)
gg
16.
Which of the following pairs is homozygous dominant?
a)
Hh
b)
pp
c)
HH
d)
aa