Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Mono & Dihybrid Crosses and Blood Type

Total questions: 20

Worksheet time: 30mins

Name
Class
Date
1.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
2.
In cacti, long arms (A) are dominant to short arms (a).  Suppose 2 heterozygous cacti are crossed.  What percentage of their offspring are expected to have short arms?
a)
0%
b)
25%
c)
75%
d)
100%
3.
Long tongues (T) are dominant to short tongues in green tree frogs.  What is the probability that two frogs that are heterozygous for long tongues could produce offspring with short tongues?
a)
100%
b)
75%
c)
50%
d)
25%
4.
If a heterozygous tall pea plant is crossed with a short pea plant, what are the possible genotypes of the future offspring?
a)
100% Tt
b)
50% Tt, 50% tt
c)
75%Tt, 25%tt
d)
25%TT, 50%Tt, 25%tt
5.
Purple is dominant to white. A heterozygous purple flower is crossed with a white flower. What are the genotypes and phenotypes of the offspring?
a)
100% Pp (purple)
b)
50% Pp (purple); 50% pp (white)
c)
75% Pp (purple); 25% pp (white)
d)
25% PP, 50% Pp, 25% pp
75% purple, 25% white
6.
How can two parents with brown eyes have a child with blue eyes?
a)
The parents may both have recessive genes for blue eyes.
b)
The child was born during the winter
c)
Eye color in humans is not an inherited trait
d)
The child was deprived of oxygen during its birth
7.
Donkey and the fire-breathing dragon have lots of babies.  If breathing fire is a recessive trait (f), what must be Donkey’s genotype if they have a baby that breathes fire?
a)
FF
b)
ff
c)
Ff
d)
F
8.

What goes in box 1

a)

AABb

b)

ABAb

c)

aabb

d)

AaBb

9.

What gamete possibilities could come from this parent's genotype?

a)

aB, ab, AB, Ab

b)

aB, Ab, AB, AB

c)

AB, aB, AB, Ab

d)

aB, ab, aB, ab

10.

What is the correct prediction when crossing a homozygous dominant parent with a homozygous recessive parent in a dihybrid cross?

a)

75% dominant, 25% recessive

b)

1:2:1

c)

9:3:3:1

d)

100% heterozygous

11.

What is the correct phenotype ratio when crossing two heterozygous parents in a dihybrid cross?

a)

100% heterozygous

b)

1:2:1

c)

3:1

d)

9:3:3:1

12.
Cross Two Homozygous plants
(
RRYY x rryy)
R = round seeds, r  = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds? 
a)
0%
b)
25%
c)
50%
d)
100%
13.

Determine the probability that an Aa individual will be produced from an Aa x Aa cross

a)

25%

b)

100%

c)

50%

d)

75%

14.
What genotype is missing from this Punnett Square?
a)
RrYy
b)
RRYY
c)
rryy
d)
RrYY
15.
Mike has type O+ blood. Mike is a Universal Recipient.
a)
True
b)
False
16.
Jim has type AB+ blood. His dad could be type O+.
a)
True
b)
False
17.
If one of your parents is blood type A and the other is type B, which of the following blood types would you likely be?
a)
O
b)
AB
c)
A or B
d)
Any
18.
Blood type is determined by the antigens.
a)
True
b)
False
19.

What is the genotype for someone who has Type AB blood?

a)

IAi

b)

IAIB

c)

IBi

d)

ii

20.

What is the probability of a person who is Type O blood and a person who is Type AB blood having a kid who is Type A Blood?

a)

0%

b)

25%

c)

50%

d)

75%

e)

100%