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WorksheetsGenetics Practice
Total questions: 7
Worksheet time: 4mins
Name
Class
Date
1.
What is phenotype?
a)
The combination of chromosomes in the nucleus.
b)
The physical traits that make an organism look the way it looks.
c)
The genes that an organism has.
d)
Inherited alleles from the parents.
2.
What is genotype?
a)
The way an organism looks.
b)
Nucleotide bases that make up DNA.
c)
There number of chromosomes in the nucleus.
d)
The genes that an organism has. One allele comes from each parent.
3.
Which genes are homozygous?
a)
Pp
b)
Hh
c)
LL
d)
Gg
4.
Which gene is heterozygous?
a)
UU
b)
TT
c)
vv
d)
Rr
5.
Which is true about recessive alleles?
a)
They are the strongest.
b)
They are weak alleles represented by a lower case letter. A dominant allele will always overpower them.
c)
They are strong. They are represented by a capital letter.
d)
They are found in all genes.
6.
Which is true about dominant alleles?
a)
They are represented by lower case letters.
b)
They are never seen in the phenotype.
c)
They represent the nucleus.
d)
They are strong alleles represented by capital letters. They overpower recessive alleles.
7.
What is a trait?
a)
A general structure of an organism.
b)
A general behavior of an organism.
c)
A specific example of a feature expressed by an organism.
d)
It is found only on the DNA in the nucleus.
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