What is a gene?

a section of a protein that codes for dna
the alternate version of a trait
the visible trait in the f1 generation
a section of dna that codes for a specific trait

Acertain species of fish can have either long or short fins. the allele for long fins is dominant over the allele for short fins. a heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. of the offspring, will have long fins and be , and will have short fins and be .

What is gene expression control that occurs after the generation of rna

Kudzu vines grow by climbing and wrapping around trees. trees covered by kudzu can die because they are starved of sunlight. what type of relationship exists between the trees and the kudzu growing on them?