AnswersTX-Biology A-ACC RISD QuestLaws of Inheritance

Sex-linked Inheritance 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
2
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Why is it important to know a person's rhesus factor before a blood transfusion?

A
A patient who is Rh+ can receive only Rh– blood.
B
A patient who is Rh– can receive only Rh+ blood.
C
A patient who is Rh+ can receive only Rh+ blood.
D
A patient who is Rh– can receive only Rh– blood.
3

How did the discovery of the rhesus factor affect society?

A
More patients died from having a transfusion with the wrong rhesus factor.
B
New treatments during pregnancy could prevent harm to the developing child.
C
Less donated blood could be used in the treatment of patients.
D
The number of blood types was reduced by half.
4

Which type of traits vary quantitatively due to the interaction of multiple genes?

A
polygenic
B
codominant
C
incomplete dominant
D
dominant
5

If you inherit the genotype AO for blood from your parents, what blood type do you have?

A
A
B
B
C
AB
D
O
7

The graph demonstrates the quantitative variation for skin pigmentation.Which conclusion is supported by the graph?

Question illustration
A
More than half of the population has the central skin pigmentation.
B
The lightest and the darkest skin pigmentations are equally common in the population.
C
The central skin pigmentation makes up more of the population than the rest of the skin pigmentation groups combined.
D
Fewer people have skin pigmentation lighter than the central peak than people who have pigmentation darker than the central peak.
8

If a red cow (homozygous dominant) is crossed with a white cow (homozygous dominant), what alleles will the offspring have?

A
Rw
B
RW
C
rW
D
rw
9

The allele for curly hair is incompletely dominant. If a mother is homozygous for curly hair and the father is homozygous for straight hair, what percentage of the offspring will exhibit characteristics of both parents?

A
25 percent
B
50 percent
C
75 percent
D
100 percent
10

Skin color, fur color, and height are examples of which inheritance pattern?

A
Mendelian inheritance
B
incomplete dominance
C
codominance
D
polygenic inheritance

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