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WorksheetsNon-Mendelian and Mendelian Genetics
Total questions: 25
Worksheet time: 25mins
Name
Class
Date
1.
What did Gregor Mendel's primary experiment consist of?
a)
Peas
b)
Flowers
c)
Beans
2.
The phenotype is the _______________.
a)
physical appearance of an organism
b)
Genetic makeup
c)
Alleles acquired from a specific parent.
3.
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
4.
How much of your DNA do you inherit from your mom?
a)
10%
b)
25%
c)
50%
d)
it varies
5.
In which inheritance pattern are heterozygous individuals a blend of the dominant and recessive phenotypes?
a)
sex-linked inheritance
b)
complete dominance
c)
codominance
d)
incomplete dominance
6.
What do the circles represent in a pedigree chart?
a)
males
b)
females
c)
individuals with a disease
d)
children of either gender
7.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
8.
What is the percentage of a homozyogus dominant offspring?
a)
75%
b)
50%
c)
25%
d)
0%
9.
What percentage of the offspring will be purebred dominant?
a)
0%
b)
25%
c)
50%
d)
75%
10.
What percentage of the female offspring will be a carrier for this recessive disease?
a)
0%
b)
50%
c)
100%
d)
25%
11.
Looking at this pedigree, how many female family members are carriers?
a)
1
b)
3
c)
10
d)
7
12.
I have 2 X chromosomes. What am I?
a)
Male
b)
Female
13.
If a woman is a carrier for a sex linked recessive trait of hemophilia and her husband has hemophilia, which of the following is true? Make a punnett square!
a)
All sons will have hemophilia
b)
all daughters will have hemophilia
c)
50% of daughters and 50% of sons have hemophilia
d)
100% of sons have hemophilia and 100% of daughters are carriers
14.
How many PAIRS of chromosomes do humans have?
a)
23
b)
46
c)
1
d)
2
15.
How many PAIRS of sex chromosomes do humans have?
a)
23
b)
46
c)
1
d)
2
16.
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
17.
What type of inheritance do two alleles have if their traits blend together?
a)
Incomplete Dominance
b)
Co-Dominance
c)
Mendelian Inheritance
d)
Homozygous Inheritance
18.
Which of the following is a hybrid?
a)
BB
b)
bb
c)
Bb
19.
In some carnations, flower color exhibits codominance. When crosses, Red (R) and white (W) flowers make speckled flowers (RW) that show both colors.
Complete a cross between A speckled flower and a red flower. Find the phenotype ratio.
Complete a cross between A speckled flower and a red flower. Find the phenotype ratio.
a)
2 red: 2 speckled: 0 white
b)
4 red: 0 speckled: 0 white
c)
0 red: 4 speckled: 0 white
d)
0 red: 2 speckled: 2 white
20.
A roan cow shows co-dominance in fur color (orange and white). What is the phenotype ratio expected if a roan cow and a roan steer mate together?
a)
4: Orange and White
b)
1: Orange : 1 White
c)
2 Orange: 2 Orange and White: 0 White
d)
1: Orange: 2 Orange and White: 1 White
21.
A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance. What percentage of the offspring will have pink (RW) flowers?
a)
0%
b)
25%
c)
50%
d)
100%
22.
What are the gametes for BbDd?
(USE FOIL)
(USE FOIL)
a)
B, b, D, d
b)
BD, bD, Bd, bd
c)
BD, BD, Bd, bd
d)
bD, bD, bd, bd
23.
Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?
a)
9/16
b)
3/16
c)
1/16
d)
16/16
24.
A male beetle has the genotype Ttbb. If this beetle mates with a female with genotype TTBb, what is the chance their offspring will have the genotype TtBb?
a)
3/16
b)
4/16
c)
8/16
d)
12/16
25.
Which of the following is homozygous dominant?
a)
Yy
b)
Y
c)
yy
d)
YY
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