17. Achondroplasia (dwarfism) is a single-gene, dominant human disorder. If two heterozygous individuals who have Achondroplasia mate, what is the probability that their first child will have Achondroplasia?

a. 100%
b. 75%
c. 50%
d. 25%
e. 0

Question

17.	Achondroplasia (dwarfism) is a single-gene, dominant human disorder. If two heterozygous individuals who have Achondroplasia mate, what is the probability that their first child will have Achondroplasia?

a.	100%
b.	75%
c.	50%
d.	25%
e.	0

alphadxg · Answer

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25 % will be unaffected, 75% will be effected.