In Humans,the Genes for Red-Green Colour Blindness (R = Normal,r

question 55

Multiple Choice

In humans,the genes for red-green colour blindness (R = normal,r = colour-blind) and haemophilia A (H = normal,h = haemophilia) are both X-linked and only 3 map units apart.Suppose a woman has four sons,and two are colour-blind but have normal blood clotting and two have haemophilia but normal colour vision.What is the probable genotype of the woman?

• A) HR/hr
• B) Hr/hr
• C) hr/hR
• D) Hr/hR
• E) HR/Hr

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Definitions:

Tax Burden

The financial charge or other levy imposed upon a taxpayer by a governmental organization in order to fund various public expenditures.

Economically Rational

Decision-making based on the principle of maximizing benefits while minimizing costs and resources.

Myopia

Refers to the difficulty human beings have with conceptualizing the more distant future. Leads to decisions that overly favor present and near-term options at the expense of more distant future possibilities.

Great Depression

A severe global economic downturn that lasted from 1929 to the late 1930s, marked by massive unemployment and the collapse of financial institutions.