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WorksheetsGenetics #2
Total questions: 35
Worksheet time: 39mins
Name
Class
Date
1.
A woman heterozygous for A blood marries a man heterozygous for B blood. What is the probability that they will produce offspring with AB blood?
a)
0%
b)
25%
c)
50%
d)
75%
2.
What is the genotypic ratio here
a)
TT = 25% Tt= 50% tt=25%
b)
all tall
c)
TT= 75% tt = 25%
d)
Tt = 100%
3.
T - tall and t = short
In the punnett square below, what belongs in the missing square
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
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.
If B = brown hair and b = blonde hair, what is the probability of brown hair?
a)
25%
b)
50%
c)
0%
d)
75%
6.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
7.
How many boxes would say BB?
a)
1
b)
2
c)
4
d)
0
8.
The dominant trait is
a)
yellow pea seeds
b)
green pea seeds
c)
there is no dominant seed
d)
Jolly green giant
9.
To be a yellow seed genotype must be
a)
aa
b)
Aa
c)
AA
d)
AA or Aa
10.
If green is dominant over purple, then what is the genotype for this individual?
a)
Purple
b)
Green
c)
GG
d)
gg
11.
Which is the correct phenotype for this organism?
a)
BB
b)
blue
c)
green
d)
bb
12.
Another word for homozygous is...
a)
purebred
b)
hybrid
c)
heterozygous
d)
dominant
13.
A phenotype is the...
a)
letter combination
b)
dominant gene
c)
recessive gene
d)
physical appearance
14.
Recessive alleles are-
a)
capital
b)
lowercase
c)
both
d)
neither
15.
Tt is-
a)
homozygous dominant
b)
homozygous recessive
c)
heterozygous
d)
none of these
16.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous
d)
BB
17.
having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
18.
In rabbits, black fur (B) is dominant over brown fur (b). If a rabbit has brown fur, what can you conclude about its genotype?
a)
It is BB.
b)
It is Bb
c)
It is brown
d)
It is bb.
19.
What is the probability of a purple-horned unicorn if a heterozygous pink-horned unicorn is crossed with a heterozygous pink-horned unicorn? (P= pink, p=purple)
a)
0%
b)
25%
c)
50%
d)
75%
20.
Square body (S) is dominant to round body (s). Which one of the following would have a square body?
a)
Ss only
b)
SS only
c)
ss
d)
Ss and SS
21.
An organism’s genetic makeup, or allele combinations
a)
Recessive
b)
Genotype
c)
Phenotype
d)
Heterozygous
22.
An organism’s physical appearance, or visible traits
a)
Recessive
b)
Genotype
c)
Phenotype
d)
Heterozygous
23.
Which of the following is heterozygous genotype?
a)
Tt
b)
tt
c)
TT
24.
Which of the following is heterozygous genotype?
a)
rr
b)
RR
c)
Rr
25.
Identify as Homozygous or heterozygous? Ll
a)
Homozygous
b)
Heterozygous
26.
Identify as Homozygous or heterozygous? Rr
a)
Homozygous
b)
Heterozygous
27.
Make this Homozygous: K
a)
K
b)
k
c)
L
d)
l
28.
Make this heterozygous: O
a)
O
b)
o
c)
Q
d)
q
29.
Make this Homozygous: A
a)
A
b)
a
c)
B
d)
b
30.
Hh is heterozygous.
a)
True
b)
False
31.
Which of the following is a hybrid?
a)
BB
b)
oo
c)
Bo
d)
AA
32.
If two parents are heterozygous for type A blood, what is the probability that their offspring would have type O blood?
a)
100 %
b)
75%
c)
50%
d)
25%
33.
If a father is AA and a mother is AB, what is the probability for a child with AB blood?
a)
0%
b)
25%
c)
50%
d)
75%
34.
Jim has type AB blood. His dad could be type O.
a)
True
b)
False
35.
What types of blood can a person with AB RECEIVE?
a)
B only
b)
AB, A, B, O
c)
AB and O only
d)
A only
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