Question

Polydactylism occurs _______.
a. only in cats
b. only in humans
c. in less than one in 1000 children
d. more commonly in certain populations, such as the Amish.

Answer 1

Here is your answer:

》Polydactylism occur mostly in Amish,i.e More commonly in certain populations in humans and animals is amish with the gene.
SO,
Your option is D
Hope it helps...☆☆

Answer 2

Polydactylism occurs more commonly in certain populations, such as the Amish. D) more commonly in certain populations, such as the Amish is the right answer.

The Gene Pool or the allele frequency is smaller than Amish people because they have a tendency to marry with Amish people only. Certain genes like, Polydactylism get passed around quite often amongst their confined population.