Course

Genetics

Study Pack

Set 3 Mendelian Genetics

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Question 1

(Multiple Choice)

Free
If an F2 generation from a self- cross always yields offspring in a 3:1 phenotypic ratio,which of the following P crosses could have occurred?

A)AA × aa
B)aa × aa
C)AA × AA
D)aa × Aa
E)Aa × AA

Answer

Question 2

(Multiple Choice)

Free
Albinism,lack of pigmentation in humans,results from an autosomal recessive gene.Two parents with normal pigmentation have an albino child.What is the probability that their next child will be wild type?

A)3/4
B)1/2
C)1/8
D)3/16
E)0%

Answer

Question 3

(Multiple Choice)

Free
To test Mendel's Law of Segregation,the experimenter needs__________ .

A)at least 500 offspring to count
B)access to several generations of data
C)a minimum of two contrasting forms of a gene
D)a DNA sequencing apparatus
E)the ability to perform a test cross

Answer