In Cattle, Roan Coat Color (Mixed Red and White Hairs)

question 43

Multiple Choice

In cattle, roan coat color (mixed red and white hairs) occurs in the heterozygous (CRCW) offspring of red (CRCR) and white (CWCW) homozygotes. Which of the following crosses would produce offspring in the ratio of 1 red:2 roan:1 white?

• A) red × white
• B) roan × roan
• C) white × roan
• D) red × roan

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Definitions:

First Choice

The primary option or preference selected from a range of alternatives.

Pairwise Votes

A method of voting where each candidate is matched against every other candidate in one-on-one comparisons.

Majority Determining

The process by which the greater number or majority's choice decides an outcome in a decision-making context.

Condorcet Paradox

A situation in social choice theory where collective preferences can be cyclical, even if the preferences of individual members are not, leading to a lack of transitivity in voting outcomes.