Which symbol indicates a wild-type allele?

T

The wild-type allele of a any gene is indicated by + as superscript to the mutant symbol. For example: the wild-type allele of the Pax1 gene is Pax1+.

Explanation:

The allele that encodes the phenotype most common in a particular natural population is known as the wild type allele.. It is often designated, in genetic shorthand, as "+".  For example, Wild type tigers have orange fur and black stripes. One mutation prevents the deposition of the orange/brown pigment, and the result is a "white tiger" that still has dark stripes. A different mutation prevents any melanin (brown pigment) from forming at all, and the result is an albino tiger.

i'm guessing this is from edg enuity so the answers would be, from top to bottom,

theodor schwann

matthias schleiden

robert hooke

rudolph virchow

anton van leeuwenhoek

the answer would be..

b. sucking