WorksheetsBiology Review
Total questions: 15
Worksheet time: 9mins
Name
Class
Date
1.
A segment of DNA that has the ability to code for a specific trait.
a)
gene
b)
allele
c)
chromosome
d)
chromatid
2.
This type of allele is expressed whether there are one or two copies present.
a)
dominant
b)
recessive
c)
homozygous
d)
heterozygous
3.
A variety or form of a gene.
a)
trait
b)
gene
c)
allele
d)
DNA
4.
Long strands of DNA are called
a)
DNA
b)
Chromosome
c)
Alleles
d)
Phenotype
5.
______ is the set of genes possessed by someone
a)
DNA
b)
Chromosome
c)
Genotype
d)
Phenotype
6.
Chromosomes are made of
a)
DNA
b)
RNT
c)
WWE
d)
DMA
7.
B=Blonde Hair b=Brown Hair
If a person was BB they would have
If a person was BB they would have
a)
Blonde Hair
b)
Brown Hair
8.
B=Blonde Hair b=Brown Hair
If a person was Bb they would have
If a person was Bb they would have
a)
Blonde Hair
b)
Brown Hair
9.
Recessive Traits show up
a)
Always
b)
Only when there are two
10.
Dominant Traits show up
a)
Always
b)
Only when there are two
11.
What tool can we use to predict what traits offspring will have?
a)
Punnett Square
b)
Wardlaw Rectangle
c)
Mendel Circle
d)
Preston Square
12.
Expressed only if NO dominant version is present
a)
homozygous
b)
heterozgyous
c)
allele
d)
recessive
13.
Humans have _______ pairs of chromosomes, for a total of _______ chromosomes.
a)
10, 20
b)
25, 100
c)
23, 46
d)
46, 92
14.
The physical expression of a trait.
a)
phenotype
b)
genotype
c)
chromosome
d)
allele
15.
What are used to represent dominant alleles?
a)
numbers
b)
capital letters
c)
lowercase letters
d)
greek letters
100 %
