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WorksheetsHeredity
Total questions: 14
Worksheet time: 12mins
Name
Class
Date
1.
Heredity is the passing of traits from _____________________ to _____________________
a)
predators to prey
b)
water to rain
c)
parents to offspring
d)
fungi to protists
2.
___________________________ is the study of how traits are passed on, or inherited.
a)
dominant traits
b)
ratio
c)
phenotype
d)
genetics
3.
_____________________ is the appearance of an organism, or how it looks
a)
phenotype
b)
ratio
c)
recessive trait
d)
heredity
4.
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
5.
Dominant or recessive?
tt
tt
a)
Dominant
b)
Recessive
6.
Dominant or recessive?
Dd
Dd
a)
Dominant
b)
recessive
c)
neither
d)
homozygous
7.
Homozygous or heterozygous?
BB
BB
a)
Homozygous
b)
Heterozygous
8.
Which of the following pairs is homozygous dominant?
a)
Hh
b)
pp
c)
HH
d)
aa
9.
Jackie is homozygous recessive for having dimples (D). What is her genotype?
a)
pp
b)
Dd
c)
dd
d)
DD
10.
Chromosomes are found in the ____________ of the cell
a)
Chloroplast
b)
Nucleus
c)
Cytoplasm
d)
Mitochondria
11.
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
12.
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
13.
If one parent is homozygous dominant, what are the chances of them having an offspring that shows the recessive trait?
a)
100%
b)
25%
c)
50%
d)
0%
14.
Round seeds (R) are dominant to wrinkled seeds (r) in pea plants. If two heterozygous parents are crossed as shown above, what percentage of offspring would have round seeds?
a)
0%
b)
50%
c)
75%
d)
100%
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