In Humans,an X-Linked Disorder Called Coloboma Iridia (A Fissure in the Iris)is

question 73

Multiple Choice

In humans,an X-linked disorder called coloboma iridia (a fissure in the iris) is a recessive trait.A normal couple has an afflicted daughter.What would be the most plausible scenario for this situation?  

• A) The mother carries two recessive alleles.
• B) The father carries one recessive allele, and the mother carries one recessive allele.
• C) The female is not the biological mother, but the male is the biological father.
• D) The male is not the biological father, but the female is the biological mother.
• E) Both parents are heterozygous for the trait.

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Definitions:

P-value Method

A statistical approach used to determine the significance of results in hypothesis testing, indicating the probability of observing data as extreme as the sample data.

Null Hypothesis

It is a hypothesis that assumes no significant difference or effect; it is the statement tested in statistical hypothesis testing to determine the likelihood of the observed data.

Statistically Significant

A determination that the observed difference or relationship in a statistic is not likely due to chance alone, according to a pre-specified threshold of significance.

Confidence Interval

A range of values derived from sample statistics that is likely to contain the true value of an unknown population parameter.