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WorksheetsGenetics #1
Total questions: 15
Worksheet time: 18mins
Name
Class
Date
1.
The genotypic symbol for heterozygous is...?
a)
Tt
b)
TT or tt
2.
The genotypic symbol for homozygous is...?
a)
Tt
b)
TT or tt
3.
What does genotype mean?
a)
What your DNA says
b)
What you see physically
4.
What does phenotype mean?
a)
What your DNA says
b)
What you see physically
5.
What letter is used to represent a dominate trait?
a)
uppercase letter
b)
lowercase letter
6.
What letter is used to represent a recessive trait?
a)
uppercase trait
b)
lowercase trait
7.
Who was the scientist who worked with pea plants to discover the basics of genetics?
a)
Gregor Mendel
b)
Jean Baptist Lamarak
c)
James Crick
d)
Monty the Snake
8.
We get half of our chromosomes from both of our...?
a)
Parents
b)
Grandparents
c)
Siblings
d)
Ancient Aliens
9.
_______ are different copies or variations of a gene.
a)
Alleles
b)
Synapses
c)
Factors
d)
Lazers
10.
If a parent is said to be Homozygous Dominate, then the genotype is...
a)
TT
b)
Tt
c)
tt
d)
tT
11.
If a parent is said to be Homozygous Recessive, then the genotype is...
a)
TT
b)
Tt
c)
tt
d)
tT
12.
If a parent is said to be Heterozygous, then the genotype is said to be...
a)
TT
b)
Tt
c)
tt
d)
tT
13.
If we say Purple flowers are dominate over white flowers, what letter would we use for the Genotypes?
a)
P for purple, p for white
b)
W for purple, w for white
c)
P for purple, w for white
d)
F for purple, f for white
14.
Humans have 46 chromosomes in their somatic (body) cells, how many chromosomes are there in their gametes?
a)
23
b)
46
c)
42
d)
97
15.
Squidward has light blue skin, and his genotype for this trait is Bb. Would Squidward be considered a purebred or hybrid for light blue skin?
a)
Purebred
b)
Hybrid
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