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WorksheetsGenetics and Evolution
Total questions: 23
Worksheet time: 12mins
Name
Class
Date
1.
Which describes how people believed traits were inherited before Mendel's discoveries?
a)
Traits blend like paint colors
b)
traits segregate into groups
c)
traits are dominant and recessive
d)
some traits mix and others don't
2.
Which choice represents a purebred?
a)
Tt
b)
TTt
c)
tt
d)
tT
3.
When were Mendel's discoveries noticed?
a)
immediately after his death
b)
years after his death
c)
before he died during a conference
d)
never; Mendel's work was not important
4.
According to Mendel's work, one trait will appear more often. This trait is called the: ________ trait
a)
dominant
b)
recessive
c)
purebred
d)
hybrid
5.
What will best fill in the quadrant indicated by the arrow?
a)
QQ
b)
Qq
c)
qQ
d)
qq
6.
Y = yellow and y = green. Given the blank Punnett Square, what will be the percent of yellow offspring?
a)
50% yellow; 50% green
b)
75% yellow; 25% green
c)
75% yellow and 25% green
d)
100% yellow
7.
Y = yellow and y = green. Given the blank Punnett Square, what will the results be?
a)
50% yellow; 50% green
b)
75% yellow; 25% green
c)
75% yellow and 25% green
d)
100% yellow
8.
A Genetic Disorder is...
a)
something that can be passed on to offspring
b)
a mistake on the DNA
c)
changing, adding or subtracting a chromosome
d)
all of the above are correct
9.
A red and white flower are cross-pollinated. The offspring are all red. Red is classified as __________.
a)
disorder
b)
purebred
c)
dominant
d)
recessive
10.
One parent contributes the gene for blue eyes and another parent contributes the gene for brown eyes. The offspring have brown eyes. Which word describes the gene for BLUE eyes?
a)
hybrid
b)
recessive
c)
dominant
d)
pedigree
11.
If D = dimples and d = no dimples, then what are the alleles?
a)
dimples and no dimples
b)
DD, Dd, dd
c)
D and D
d)
D and d
12.
Which is an accurate statement about the pedigree?
a)
it affects every generation
b)
Only males are affected by the disease
c)
3 people are affected by the disease
d)
Kate and Joe are both carriers
13.
A Purebred is crossed with a hybrid. Which choice represents the BEST choice for this?
a)
YY and yy
b)
Yy and Yy
c)
yy and yY
d)
yy and Yy
14.
How would a pedigree represent a "carrier" that is a male?
a)
a shaded square
b)
a half-shaded square
c)
a circle
d)
a half-shaded circle
15.
How many affected people are shown in this pedigree?
a)
2
b)
5
c)
7
d)
9
16.
How many female carriers are there?
a)
3
b)
4
c)
5
d)
6
17.
The best example of the term "variation" is...
a)
lizards fighting over a small animal
b)
one light colored moth and one dark colored moth
c)
an organism will gills survives easier in the water
d)
a sea turtule laying over 100 eggs
18.
Which term refers to the process by which animals that are better suited to their environment will survive and reproduce?
a)
natural selection
b)
overproduction
c)
variation
d)
competition
19.
What is likely to happen to a tree species that cannot adapt to a bark beetle?
a)
mutation
b)
overproduction
c)
extinction
d)
camouflage
20.
Woolyboogers that cannot eat enough food food are likely to ...
a)
adapt
b)
become endangered
c)
migrate to another area
d)
all of the above are correct
21.
An example of overproduction would be when:
a)
lizards fight over a small animal
b)
one light colored moth and one dark colored moth
c)
a sea turtle laying over 100 eggs
d)
a frog going through metamorphosis
22.
Which of the following is a cause of extinction?
a)
lack of resources
b)
competition between species
c)
loss of habitat
d)
all of the above
23.
The function of a Punnett square is to...
a)
predict future offspring
b)
show actual allele results about possible offspring
c)
trace a family history with squares and circles
d)
Show DNA results with base paris
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