Worksheets6th Grade Genetics Review
Total questions: 22
Worksheet time: 11mins
Name
Class
Date
1.
What does DNA stand for?
a)
Denatured Acid
b)
Deoxynucleic Acid
c)
Deoxyribonucleic Acid
d)
Dentureneeding Aardvark
2.
How do we represent a purebred genotype?
a)
Two capital letters
b)
Two lowercase letters
c)
Two X's
d)
One capital letter and one lowercase letter
3.
How do we represent a hybrid genotype?
a)
Two capital letters
b)
Two small letters
c)
One capital, one small letter
d)
Two X's
4.
What is a genotype?
a)
A list of traits for an offspring
b)
The genes for an animal
c)
A physical characteristic of a plant or animal
d)
A set of letters we use to represent a trait
5.
What is a phenotype?
a)
A physical characteristic of a plant or animal
b)
The study of physics
c)
The genes of a plant or animal
d)
The phylum an animal belongs to
6.
A heterozygous trait...
a)
Has two dominant genotypes
b)
Has two recessive genotypes
c)
Has one dominant and one recessive genotype
d)
Is indicated with an "x"
7.
A homozygous trait...
a)
Can have two dominant or two recessive genotypes
b)
Has two recessive genotypes
c)
Has one dominant and one recessive genotype
d)
Is indicated with an "x"
8.
How can you tell which gene is dominant in a Punnett Square?
a)
It has a red mark on it
b)
It is represented in the middle of the Punnett Square
c)
It is represented by a lowercase letter
d)
It is represented by a capital letter
9.
Heterozygous or Homozygous? RR
a)
He
b)
Ho
10.
Heterozygous or Homozygous? Bb
a)
He
b)
Ho
11.
Heterozygous or Homozygous? Tt
a)
He
b)
Ho
12.
Heterozygous or Homozygous? aa
a)
He
b)
Ho
13.
Which one of these examples is a phenotype?
a)
Round shape
b)
Rr
c)
rr
d)
RR
14.
Which one of these examples is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue Eyes
15.
Which one of these is an example of a genotype?
a)
Cc
b)
Blue Eyes
c)
Green Skin
d)
Round body shape
16.
Which one of these is a genotype?
a)
Yellow body color
b)
Aa
c)
Green Eyes
d)
Pink Skin
17.
How many pairs of chromosomes does a human offspring have?
a)
36
b)
24
c)
46
d)
23
18.
What is the chance of this offspring having Brown eyes?
a)
3 out of 4 or 75%
b)
2 out of 4 or 50%
c)
1 out of 4 or 25%
d)
0 out of 4 or 0%
19.
What is the chance of this offspring having a square shape (S)?
a)
3 out of 4 or 75%
b)
2 out of 4 or 50%
c)
1 out of 4 or 25%
d)
4 out of 4 or 100%
20.
What are the possible genotypes for this Punnett Square?
a)
Aa
b)
AA, Aa
c)
Aa, AA, aa
d)
aa
21.
What is the title of a person who studies genetics?
a)
A genetics person
b)
A herediterian
c)
A genometric
d)
A geneticist
22.
What did Gregor Mendel study?
a)
Human Eye Color
b)
Pea Plants
c)
Human Skin Color
d)
The number of leaves on trees
100 %
