An allele is:
a) a version of a gene.
b) a trait that can be affected by the external environment.
c) always codominant to its counterpart in another chromosome.
d) the result of a change in phenotype.

16. which of the following accurately describes a step within transcription? a. dna polymerase uses one strand of rna as a template to put together nucleotides. b. the dna strand is used as a template for which a complementary rna strand can be produced. c. the rna strand forms a template by which dna can be built. d. the rna strand is produced within the cytoplasm.

The hardy-weinberg principle is that genetic frequencies in a population? will remain stable from generation to generation will always be changing will not be affected by environmental changes are always in a 3: 1 ratio

What do you think scientists face when classifying new organisms?