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WorksheetsGenetics
Total questions: 20
Worksheet time: 26mins
Name
Class
Date
1.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
2.
The passing of genetic traits from parent to offspring is
a)
heredity
b)
trait
c)
gene
d)
allele
3.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
4.
G = green, g = yellow
The genotype for a yellow plant is...
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
5.
An allele whose trait only shows up when no dominant allele is present.
a)
hidden allele
b)
dominant allele
c)
recessive allele
d)
present allele
6.
1. What is an adaptation?
a)
A feature or behavior that helps an animal survie.
b)
The food that an animal eats.
c)
How energy moves in a food web.
d)
A mutation that kills an organism
7.
the bundled form of DNA is called________________
a)
an allele
b)
a gene
c)
a chromosome
d)
a phenotype
8.
Which of the following genotypes would be considered heterozygous?
a)
BB
b)
gg
c)
Ff
d)
TT
9.
In a pedigree, what shape represents a male?
a)
circle
b)
square
c)
triangle
d)
diamond
10.
What gender has an X and a Y chromosome?
a)
male
b)
female
c)
transgender
d)
all of the above
11.
Section of DNA on a chromosome that contains instructions for making proteins and controls a particular trait.
a)
Gene
b)
Pedigree
c)
Punnett Square
d)
Dominant
12.
A chart or “family tree” that tracks which members of a family have a particular trait
a)
Gene
b)
Pedigree
c)
Punnett Square
d)
Dominant
13.
A chart that shows all the possible combinations of alleles that can result from a cross between and mom and dad.
a)
Gene
b)
Pedigree
c)
Punnett Square
d)
Dominant
14.
A change in a gene or chromosome; may be beneficial, harmful, or have little effect on an organism
a)
Homozygous
b)
Selective Breeding
c)
Mutation
d)
Carrier
15.
Sex cells (gametes) are produced through the process of
a)
mitosis
b)
cytokinesis
c)
binary fission
d)
meiosis
16.
What is the result of mitosis?
a)
a cell with 23 chromosomes
b)
a genetically identical cell
c)
genetically different cells
d)
4 genetically identical cells
17.
How many chromosomes total does a human cell have?
a)
23
b)
12
c)
46
d)
92
18.
The structure shown in the picture is a _____________?
a)
chromatid
b)
chromosome
c)
centromere
d)
DNA
19.
The process by which one gamete combines with the other is called
a)
mitosis
b)
crossing over
c)
meiosis
d)
fertilization
20.
Chromosomes mix genetic material during
a)
crossing over
b)
replication
c)
synthesis
d)
translation
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