Question

What is a dominant gene?

A gene that is identical in most of the world's population.

A gene that does not change from generation to generation.

A gene with a mutation that affects the surrounding genes.

A gene that is always expressed physically when present.

Answer 1

1 or A

Step-by-step explanation:

Don't trust me but that's what i think because dominance is the phenomenon of one variant of a gene on a chromosome masking or overriding the effect of a different variant of the same gene on the other copy of the chromosome. The first variant is termed dominant and the second recessive.

Answer 2

A gene that is always expressed physically when present