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WorksheetsGenetics - Heredity - Me!
Total questions: 21
Worksheet time: 18mins
Name
Class
Date
1.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4
2.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
3.
An organism's inherited appearance is called _______.
a)
genotype
b)
phenotype
c)
chromosome
d)
DNA
4.
The inherited combination of alleles is called the ______
a)
genotype
b)
phenotype
c)
chromosome
d)
DNA
5.
Purple flowers are dominant to white flowers. What would the phenotype for a flower with genotype pp be?
a)
purple
b)
white
c)
pink
d)
yellow
6.
Purple flowers are dominant to white flowers. What would the phenotype for a flower with genotype Pp be?
a)
purple
b)
white
c)
pink
d)
yellow
7.
Purple flowers are dominant to white flowers. What would the phenotype for a flower with genotype PP be?
a)
purple
b)
white
c)
pink
d)
yellow
8.
TRUE OR FALSE: A genotype of NN would be heterozygous.
a)
True
b)
False
9.
TRUE OR FALSE: A genotype of Ss would be heterozygous.
a)
True
b)
False
10.
The passing of genetic traits from parent to offspring is called
a)
cross-pollination
b)
cross-breeding
c)
heredity
d)
genetics
11.
If a plant with the genotype PP is crossed with a plant with the genotype pp, what are the possible genotypes of the offspring?
a)
PP, pp, pp, PP
b)
Pp, Pp, Pp, Pp
c)
Pp, PP, pp, PP
d)
PP, Pp, pP, pp
12.
The mathematical chance that something will happen is known as
a)
possibility
b)
probability
c)
percentage
d)
product
13.
Which of the following genotypes is homozygous dominant?
a)
BB
b)
bb
c)
Bb
d)
green eyes
14.
What is the definition of a phenotype?
a)
letter combination
b)
physical characteristic
15.
Which of the following genotypes is heterozygous?
a)
AA
b)
Aa
c)
aa
16.
Which of the following answers correctly represents this Punnett Square if freckles are dominant?
a)
25% chance freckles
b)
50% chance freckles
c)
75% chance freckles
d)
100% chance freckles
17.
True or False: Traits can skip a generation.
a)
True
b)
False
18.
What organism did Gregor Mendel study?
a)
Flowers
b)
Bacteria
c)
Humans
d)
Pea Plants
19.
How many chromosomes are found in human body cells?
a)
0
b)
23
c)
46
d)
50
20.
If the offspring is genetically identical to it's parent, what type of reproduction occurred?
a)
Asexual Reproduction
b)
Sexual Reproduction
21.
Genetic variation is most likely to result from what type of reproduction?
a)
Asexual Reproduction
b)
Sexual Reproduction
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