1. A chi-square test was performed and indicated that the observed numbers of of

Question

1. A chi-square test was performed and indicated that the observed numbers of offspring were significantly different from the expecteD. Which of the following P-values would support this conclusion?

Select one:

a. 0.536

b. 0.752

c. 0.024

d. 0.159

e. 0.995

2.A couple has six daughters and is expecting a seventh chilD. What is the probability that this child will be a boy?

Select one:

a. 1/4

b. 1/64

c. 1/2

d. 1/16

e. 1/128

3.Freckles are caused by a dominant allelE. A man has freckles but one of his parents does not have freckles. What is his genotype?

Select one:

a. Homozygous dominant

b. Heterozygous

c. Homozygous recessive

d. Homologous

e. Heterologous

4.Freckles are caused by a dominant allelE. A man has freckles but one of his parents does not have freckles. The man has fathered a child with a woman that does not have freckles. What is the probability that their child has freckles?

Select one:

a. 2/3

b. 1/2

c. 1/4

d. 1/3

e. 3/4

Explanation / Answer

1. (c) 0.024 is the P-value for which the observed number of offsprings is significantly different from the expected number of offsprings.

2.(c) A couple has six daughters and is expecting a seventh child but Probability of boy child = 1/2

3.(b) The man has Freckles but one of his parents doen not have it. This is only possible if the genotype of that preson is Heterozygous.

4.(b) A man has freckles but one of his parents does not have freckles. The man has fathered a child with a woman that does not have freckles so Probability of child having freckles = 1 / 2

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