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Heredity

Total questions: 29

Worksheet time: 45mins

Name
Class
Date
1.

All organisms have DNA

a)

True

b)

False

2.

In people, the Dominant allele (W) codes for a Widow's Peak. The recessive allele (w) codes for no Widow's Peak. What combination of alleles could produce a person without a Widow's Peak?

a)

WW

b)

Ww

c)

ww

3.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
4.
Snap dragon color is a incomplete dominant trait.  A red flower (RR) is crossed with white flower (rr)? What color are flowers that are Rr?
a)
Red
b)
Red and White
c)
White
d)
Pink
5.
In butterfly bushes, dark purple and pink parents will produce offspring with lavender flowers. This is a result of 
a)
codominance
b)
incomplete dominance
c)
complete dominance
d)
recessive dominance
6.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
7.
The image shows the pattern of inheritance for colorblindness.  From this diagram we can tell that colorblindness is
a)
a codominant trait
b)
a sex-linked trait
c)
carried on the Y chromosome
d)
is associated with a dominant allele
8.

Segments of DNA that code for traits are called ....

a)

genes

b)

proteins

c)

alleles

9.

The physical expression of a trait is called the ...

a)

genotype

b)

phenotype

10.

Genotype: TT

a)

homozygous dominant

b)

homozygous recessive

c)

heterozygous dominant

11.

He is known as the father of modern genetics

a)

Alfred Wegener

b)

Robert Hooke

c)

Aristotle

d)

Gregor Johann Mendel

12.

What plant does Mendel used in his experiment about the discovery of heredity?

a)

squash

b)

pea plant

c)

turnip

d)

cucumber

13.

This is a diagram used to determine the possible combinations of alleles in a cross of the parent.

a)

punnett square

b)

monohybrid

c)

dihybrid

d)

law of square

14.

An organism's genetic makeup, or allele combination

a)

fertilization

b)

genotype

c)

phenotype

d)

heterozygous

15.

An organism that has two different alleles for a trait (hybrid)

a)

fertilization

b)

genotype

c)

homozygous

d)

heterozygous

16.

 

Two parents have type "O" blood. What will the blood type of their children be?

a)

O

b)

A

c)

AB

d)

B

17.

What is the genotype for #15?

a)

rr

b)

Rr

c)

RR

d)

rR

18.
Heredity is the passing of traits from _____________________ to _____________________
a)
predators to prey
b)
water to rain
c)
parents to offspring
d)
fungi to protists
19.
Which of the following pairs is homozygous dominant?
a)
Hh
b)
pp
c)
HH
d)
aa
20.
Which of the following is heterozygous?
a)
Hh
b)
gg
c)
HH
d)
GG
21.
In a dihybrid cross
a)
one trait is crossed.
b)
two traits are crossed.
c)
four boxes are needed for the punnett square.
d)
mom's alleles are dominant.
22.
parent 1: GgBB
parent 2: ggBb
Find the gametes for parent 1.
a)
GB, GB, gB, gB
b)
gB, gb, gB, gb
c)
Gg, BB, GB, GB
d)
gg, Bb, gB, gb
23.
Which of the following identifies the gametes?
a)
A
b)
B
c)
C
d)
D
24.
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
25.
What goes in box 1
a)
AABb
b)
AABB
c)
aabb
d)
AaBb
26.
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
27.
having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
28.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
29.

What ratio of the offspring from the cross shown will be recessive for the trait of tallness?


Dominant: AA or Aa

Recessive: aa

a)

0 in 4

b)

1 in 4

c)

2 in 4

d)

4 in 4

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