What is a clade?

a. a group of organisms with a shared ancestor

b. a trait that an ancestor did not have

c. a group with no shared traits

d. a trait that was passed along

A. A group of organisms with a shared ancestor

Explanation:a group of organisms believed to have evolved from a common ancestor, according to the principles of cladistics.

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

hope this : )