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WorksheetsMiddle School Genetics Quiz
Total questions: 20
Worksheet time: 19mins
Name
Class
Date
1.
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
2.
T = tall an t = short
TT and Tt would result in the following phenotype
TT and Tt would result in the following phenotype
a)
short
b)
tall
c)
both tall and short
d)
neither tall or short
3.
B = brown fur b = white fur
In the punnett square, what is the probability for white fur?
In the punnett square, what is the probability for white fur?
a)
0%
b)
25%
c)
50%
d)
75%
4.
Purebred is another word for __________, while hybrid is another word for __________.
a)
dominant; recessive
b)
recessive; dominant
c)
homozygous; heterozygous
d)
heterozygous; homozygous
5.
Aa is
a)
homozygous (purebred)
b)
heterozygous (hybrid)
6.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous
d)
DNA
7.
Squidward has light blue skin, and his genotype for this trait is Bb. Would Squidward be considered a purebred or hybrid for light blue skin?
a)
Purebred
b)
Hybrid
8.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
9.
Magda is a tall, 11 year old drummer. She has a scar on her right cheek. She is good at swimming. Which of her traits did Magda most likely inherit?
a)
height
b)
the scar
c)
ability to swim
d)
ability to play drums
10.
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%
11.
Which members of the family above are afflicted with Huntington's Disease?
a)
I-1, II-2, II-3, II-7, and III-3
b)
I-1, I-2, II-3, II-7, and III-5
c)
I-1, I-3, II-8, and III-2
d)
I-2, II-1, II-4, II-5, II-6, II-8, III-1, III-2, III-4, and III-5
12.
There are no carriers for Huntington's Disease- you either have it or you don't. Is Huntington's disease caused by a dominant or recessive trait?
a)
Dominant
b)
Recessive
13.
How many children did individuals I-1 and I-2 have?
a)
2
b)
4
c)
6
d)
8
14.
How many girls did II-1 and II-2 have?
a)
1
b)
2
c)
3
d)
4
15.
How are individuals I-2 and III-5 related?
a)
Grandpa and grandson
b)
Mom and son
c)
Uncle and nephew
d)
Grandma and grandson
16.
Name 2 IV generation colorblind males.
a)
IV-1 and IV-2
b)
IV-1 and IV-6
c)
IV-5 and IV-8
d)
IV-1 and IV-5
17.
Give the genotype for person III-3
a)
GG
b)
Gg
c)
gg
18.
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
19.
This type of inheritance pattern is a MIXTURE of both traits.
a)
incomplete dominance
b)
co-dominance
c)
complete dominance
d)
recessive pattern
20.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
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