Frederick Griffith's work with two strains of the same bacteria, one harmful and the other harmless, showed that:
A. cells contain a transforming factor.
B. a DNA molecule is a double helix.
C. two alleles interact to produce a trait.
D. DNA carries a code for making proteins.

Neeed now for 1. eye color is a polygenic trait. what is the possibility of getting a green (aabb) eyed child, if parent 1 has brown eyes (aabb) parent 2 has blue eyes (aabb) 2.albinism is a recessive trait. having normal pigment is the dominant trait. what is the possibility of having an albino child if parent 1 is heterozygous normal parent 2 is heterozygous normal 3.in rabbits black fur is dominant over white fur. what is the probability of getting a rabbit with black fur if parent 1 is heterozygous black parent 2 is homozygous white