AnswersCO-Biology A-CRUnit Test

Unit Test — Cumulative exam Answers

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Which was not a result of the 1898 discovery of the four blood types and advances made during the two World Wars?

A
improved blood transfusion safety
B
effective blood preservation solutions developed
C
ability to separate different parts of blood for different uses
D
all blood types were made universally compatible
22
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Which type of traits vary quantitatively due to the interaction of multiple genes?

A
polygenic
B
codominant
C
incomplete dominant
D
dominant
23

The flowchart below shows the three generations of a cross between a pea plant that has yellow pods and a pea plant that has green pods. Green pods are the dominant trait. The flowchart is missing the labels that describe the traits.In which squares should the phrase “Green pods” appear?

Question illustration
A
A and D only
B
B and E only
C
A, C, and D only
D
A, B, C, D, and E
24

Why did Gregor Mendel use peas in his experiments?

A
Peas grow very slowly.
B
Pea reproduction cannot be controlled.
C
Peas normally produce very few offspring.
D
Peas have characteristics that have two forms.
25

A scientist wants to examine a genetic disease in humans. The scientist hypothesizes that the disease can be treated by using gene therapy. Humans take a long time to reproduce and develop, so the scientist will have to

A
give up on testing the hypothesis.
B
test the hypothesis for a very long time.
C
develop new methods to test the hypothesis.
D
find a way to make humans reproduce faster.

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