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Sagot :
Answer:
Option A
Explanation:
It is given that allele for a widow’s peak (W) is completely dominance over the allele for a straight hairline (w).
Two heterogeneous parents are crossed with genotype (Ww)
Therefore following offspring are produced-
Ww * Ww
WW
Ww
Ww
ww
Thus, out of four only one offspring with genotype (ww) will be without a widow’s peak.
Thus, the probability of having an offspring without a widow’s peak
[tex]\frac{1}{4} * 100\\= 25[/tex]%
Thus, option A is correct
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