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WorksheetsGenetic Variation
Total questions: 10
Worksheet time: 9mins
Name
Class
Date
1.
What is an example(s) of a genotype? (SELECT ALL THAT APPLY).
a)
Curly Hair
b)
GG
c)
Gg
d)
Straight Hair
2.
What is an example(s) of a phenotype? (SELECT ALL THAT APPLY)
a)
Curly Hair
b)
GG
c)
Gg
d)
Straight Hair
3.
Heterozygous is when...
a)
the alleles are the same
b)
the alleles are different
c)
the alleles are absent
d)
the alleles are present
4.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both
5.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
6.
condition in which both alleles for a gene are expressed when present - both traits are visible
a)
Codominance
b)
Dominance
c)
Complete dominance
d)
Incomplete dominance
7.
Double eyelids are dominant (E) to normal eyelids (e). What is the genotype(s) for someone who has double eyelids?
a)
ee
b)
Ee, ee
c)
EE, Ee
d)
EE
8.
Widows peak is recessive (w) to straight hair (W). What would be the corresponding phenotype for an individual who expresses the genotype (Ww).
a)
Widows Peak
b)
Straight
9.
T - tall and t = short
In the punnett square below, what belongs in the missing square
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
10.
In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?
a)
0%
b)
25%
c)
50%
d)
75%
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