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Anury is the absence or abbreviation of the tail in sheep (and also other animals). It is inherited in an dominant manner. A ram with anury is mated to a ewe with a normal tail. The ram’s father had anury, his mother did not. What is the probability that the ram and ewe will produce a lamb with anury?

A. 25%
B. 50%
C. 75%
D. 80%

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Answer:

B. 50%

Step-by-step explanation:

-The are two people involved in the breeding.

-The event of having an anury exists in only one of the two.

-Since probability is defined as the likelihood of an event occuring, this probability is calculated as:

[tex]P(Anury)=\frac{Anury\ Event}{Total \ number \ of \ events}\\\\=\frac{1}{2}\\\\=50\%[/tex]

Hence, the probability is 50%

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