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WorksheetsHEREDITY
Total questions: 24
Worksheet time: 20mins
Name
Class
Date
1.
choose a
a)
a
b)
b
2.
Bob is a tall, slender young man with red hair and blue eyes. Which couple would most likely be Bob’s parents?
a)
a slender, red-haired father and a tall, blue-eyed mother
b)
a tall green-eyed father with long brown hair and a short, brown-haired mother
c)
a short, green-eyed, black-haired father and a tall, brown haired, brown-eyed mother
d)
a short, plump brown-haired father with freckles and a short, blue-eyed red-haired mother
3.
Most young animals inherit similar appearances, such as shape and color, from their parent animals. Which best describes why a baby deer (fawn) has spots when the adult deer do not?
a)
The spots help camouflage the fawn for protection.
b)
The spots help a fawn to be seen when crossing roads.
c)
The adult deer lose their spots by rubbing against trees.
4.
___________________________ is the study of how traits are passed on, or inherited.
a)
dominant traits
b)
ratio
c)
phenotype
d)
genetics
5.
A ________________________ is used to predict the possible genotype from certain parents
a)
Mendel Grid
b)
Genetic Tic Tac Toe
c)
Punnett Square
d)
Pedigree Plot
6.
What is a dominant allele?
a)
A trait that is always shown (capital letter)
b)
A trait that can be hidden (lower case letter)
c)
Alleles that are the same
d)
Alleles that are different
7.
What is a gene?
a)
An entire chromosome that codes for a trait
b)
a piece of clothing
c)
a piece of a DNA on chromosome that codes for a trait
d)
Chemical messengers in your brain that code for a trait
8.
Chromosomes are found in the ____________ of the cell
a)
Chloroplast
b)
Nucleus
c)
Cytoplasm
d)
Mitochondria
9.
How many are tall?
a)
0
b)
1
c)
2
d)
4
10.
What is the only Genotype that shows the RECESSIVE Phenotype?
a)
GG
b)
Gg
c)
gg
11.
What are the two genotypes that show the DOMINANT Phenotype
a)
GG, gg
b)
GG, Gg
c)
Gg, gg
12.
What is Bb?
a)
Homozygous
b)
Heterozygous
c)
Recessive
d)
Alleles
13.
What are the possible combinations of a pea plant with the alleles PP and a male pea plant with the alleles pp.
P= purple
p= white
P= purple
p= white
a)
all Pp
b)
all PP
c)
Pp,PP,Pp,PP
d)
all pp
14.
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
15.
In fruit flies, eye color is a sex-linked trait. If a male with red (R) eyes mates with a white-eyed (r) female, what percentage of their children will be white-eyed males?
a)
100%
b)
50%
c)
25%
d)
0%
16.
He is known as the father of modern day genetics.
a)
Gregory Mendel
b)
Greg Mendel
c)
Gregor Mendel
d)
Grace Mendel
17.
Which of the following is NOT a genotype?
a)
heterozygous
b)
a trait
c)
Bb
d)
homozygous recessive
18.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous
d)
DNA
19.
Which of the following alleles is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
20.
True, False, or Unknown:
The possible genotypes for the offspring are 100% TT
The possible genotypes for the offspring are 100% TT
a)
True
b)
False
c)
Unknown
21.
True, False, or Unknown:
The possible genotypes for the offspring are 100% tt
The possible genotypes for the offspring are 100% tt
a)
True
b)
False
c)
Unknown
22.
True, False, or Unknown:
The possible genotypes for the offspring are 50% Tt
The possible genotypes for the offspring are 50% Tt
a)
True
b)
False
c)
Unknown
23.
If T represents dominance for tall plants and t is recessive for short plants, then the phenotype for the plants in this scenario are
a)
Mostly tall
b)
Mostly short
c)
All tall
d)
All short
24.
aa always shows up as
a)
dominant
b)
recessive
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