WorksheetsGenetics
Total questions: 26
Worksheet time: 26mins
Name
Class
Date
1.
____________ reproduction is where the offspring is a clone of the parent
a)
sexual
b)
asexual
2.
Which of the following is not a disadvantage of sexual reproduction?
a)
greater genetic variation
b)
requires a male
c)
not all genetic combinations are viable
3.
When comparing the offspring of sexually and asexually reproducing organisms, we would expect the genetic material (DNA) of the sexually reproducing organism to -
a)
contain fewer mutations
b)
be lesser in quantity
c)
be simpler overall
d)
show more variation
4.
Asexual reproduction like mitosis produces
a)
Two offspring cells with the same genetic material as the parent cell.
b)
Two offspring cells with half genetic material as the parent cell.
c)
Four offspring cells with the same genetic material as the parent cell.
d)
Four offspring cells with half the genetic material as the parent cell.
5.
The image illustrates which process?
a)
Mitosis
b)
Meiosis
6.
A form of asexual reproduction
a)
Mitosis
b)
Meiosis
c)
Both Mitosis and Meiosis
7.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
8.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
9.
In a pedigree, what shape represents a male?
a)
circle
b)
square
c)
triangle
d)
diamond
10.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
11.
What is the phenotype of the offspring? (A-Brown hair; a-blond hair)
a)
50 % Brown Hair and 50% Blond Hair
b)
25 % Brown Hair and 75% Blond Hair
c)
75 % Brown Hair and 25% Blond Hair
d)
0% Brown Hair and 100% Blond Hair
12.
A homozygous dominant brown mouse is crossed with a heterozygous brown mouse (tan is the recessive color).
a)
100 % tan
b)
100 % brown
c)
50 % brown and 50% tan
d)
75 % brown and 25 % tan
13.
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?
a)
Incomplete Dominance
b)
Co dominance
c)
Independent assortment
d)
Recessive inheritance
14.
This type of inheritance pattern is a MIXTURE of both traits.
a)
incomplete dominance
b)
co-dominance
c)
complete dominance
d)
recessive pattern
15.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
16.
Examine the pedigree. The allele for the presence of a widow’s peak is dominant. Therefore, we can tell from the chart that in the couple labeled 2:
a)
the male is heterozygous and the female is homozygous.
b)
the male is homozygous and the female is heterozygous.
c)
the male is homozygous and the female is homozygous.
d)
the male is heterozygous and the female is heterozygous.
17.
How are individuals III-2 and II-4 related?
a)
Cousins
b)
Dad and Daughter
c)
Uncle and Niece
d)
Grandpa and Granddaughter
18.
Give the genotype for person III-3
a)
GG
b)
Gg
c)
gg
19.
What do half colored symbols represent?
a)
The individual is a carrier (heterozygous).
b)
The individual expresses the trait.
c)
The individual has both recessive alleles.
d)
The individual has both dominant alleles.
20.
How many people in the pedigree are carriers for the disorder?
a)
6
b)
8
c)
2
d)
9
21.
How many people in this whole pedigree have the trait/disease?
a)
2
b)
3
c)
4
d)
6
22.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
23.
Freckles (F) are dominant over nonfreckles. What is the phenotype of individual #3
a)
Ff
b)
ff
c)
freckles
d)
nonfreckles
24.
If this pedigree shows an autosomal recessive disorder, what MUST the genotype of individual II-3 be?
a)
HH
b)
Hh
c)
hh
d)
None of the above
25.
Lisa has two grandmothers in this picture.
a)
Mona and Jackie
b)
Marge and Mona
c)
Selma and Jackie
d)
Patty and Selma
26.
What is the genotype of both great-grandsons? (Individuals 13 and 16)
a)
AA
b)
Aa
c)
A_
d)
aa
100 %
