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Heredity Section 1

Total questions: 18

Worksheet time: 10mins

Name
Class
Date
1.

__________ studies how traits are inherited though the interactions of alleles.

a)

A)Genetics

b)

B)Mitosis

c)

C)Probability

d)

D)Regeneration

2.

Which process separates chromosomes?

a)

A)meiosis

b)

B)pedigree

c)

C)inheritance

d)

D)chemosynthesis

3.

Which topic in mathematics did Mendel use to help explain heredity?

a)

A)algebra

b)

B)calculus

c)

C)probability

d)

D)geometry

4.

Which of these is an organism that produces the same traits in every generation?

a)

A)a purebred

b)

B)a hybrid

c)

C)a pea plant

d)

D)a chromosome

5.

__________ is the process Mendel used to pollinate flowers of short plants with pollen from tall plants.

a)

A)Polygenic inheritance

b)

B)Genetics

c)

C)Cross-pollination

d)

D)Mitosis

6.

Which is a tool that is used to predict genetic crosses?

a)

A)a slide rule

b)

B)a tally sheet

c)

C)a Venn diagram

d)

D)a Punnett square

7.

Mendel's pea plants were __________ for the tall-dominant trait.

a)

A)heterozygous

b)

B)pedigrees

c)

C)homozygous

d)

D)variable

8.

Which of these describes how an organism looks?

a)

A)its probability

b)

B)its phenotype

c)

C)its hybrid

d)

D)its zygosity

9.

Where are the alleles for each parent written when using a Punnett square?

a)

A)across the top and along the side of the grid

b)

B)in the top two squares of the grid

c)

C)in the bottom two squares of the grid

d)

D)only at the bottom of the grid

10.
Which of the following is Heterozygous?
a)
Two of the same recessive allele (aa)
b)
Two of the same dominant allele (AA)
c)
Two different alleles (Aa)
d)
Two different genes (AB)
11.
Which of the following is Homozygous Recessive?
a)
AA
b)
Aa
c)
aa
d)
aA
12.
Which of the following is Homozygous Dominant?
a)
RR
b)
rr
c)
Rr
d)
Rp
13.
Brown eyes (B) are dominant to blue eyes (b). What is the phenotype of a person who is Bb?
a)
Blue Eyes 
b)
Brown Eyes
c)
70% Brown 
d)
25% Blue 
14.
Brown eyes (B) are dominant to blue eyes (b). What is the genotype of a person with blue eyes?
a)
Homozygous Dominant (BB)
b)
Homozygous Recessive (bb)
c)
Heterozygous (Bb)
d)
Single Recessive (b)
15.
What genotype belongs in the box with the question mark?
a)
AA
b)
Aa
c)
aA
d)
aa
16.
What genotype belongs in the top right box?
a)
TT
b)
tt
c)
Tt
17.
What is the probability that the offspring will be Homozygous Recessive?
a)
0%
b)
25%
c)
50%
d)
100%
18.
If tall (T) is dominant to short (t), which of these offspring will be short?
a)
TT
b)
Tt
c)
tt
d)
tT