WorksheetsGenetics Quiz Practice
Total questions: 13
Worksheet time: 14mins
Name
Class
Date
1.
The Punnett square in Figure 11–2 shows that the gene for pea shape and the gene for pea color
a)
assort independently
b)
have the same alleles
c)
are linked
d)
are always homozygous
2.
The man who studied genetics and came up with genetics is
a)
Watson
b)
Crick
c)
Mendel
d)
Darwin
3.
Genotype refers to the ...
a)
physical expression of the genes
b)
the possible combination of alleles in a gene
c)
whether an allele is dominant or recessive
d)
how an organism will appear
4.
What is a phenotype
a)
The genetic make up (code)
b)
The physical trait
5.
the passing of genetic traits from parent to offspring.
a)
heredity
b)
trait
c)
gene
d)
allele
6.
If T=Tall & t=short, what is the genotypic ratio?
a)
1:3
b)
3:1
c)
1:2:1
d)
2:2
7.
A cross of a Green chicken (GG) with a white chicken (WW) produces all speckled offspring (GGWW). This type of inheritance is known as
a)
incomplete dominance
b)
polygenic inheritance.
c)
codominance
d)
multiple alleles.
8.
A male and female bison that are both heterozygous for normal skin pigmentation (Aa) produce an albino offspring (aa).
Which of Mendel’s principles explain(s) why the offspring is albino?
Which of Mendel’s principles explain(s) why the offspring is albino?
a)
dominance only
b)
dominance and segregation
c)
independent assortment only
d)
segregation only
9.
In humans, a male has...
a)
one X chromosome only.
b)
two X chromosomes
c)
one X chromosome and one Y chromosome
d)
two Y chromosomes.
10.
What genotype is missing from this Punnett Square?
a)
RrYy
b)
RRYY
c)
rryy
d)
RrYY
11.
Which of the following is purebred?
a)
AA
b)
aa
c)
Aa
d)
Both AA and aa
12.
These are used to predict the outcomes of crosses.
a)
Punnett Squares
b)
karyotypes
c)
line graphs
d)
pedigrees
13.
Situations in which one allele for a gene is not completely dominant over another allele for that gene are called
a)
multiple alleles
b)
incomplete dominance
c)
polygenic inheritance
d)
multiple genes
100 %
