What does denotation mean?

a) the sound of the word when you read it.
b) the tone of a word in writing.
c) the dictionary meaning of a word.
d) the set of ideas associated with the word.

Genes that come together with different alleles are heterozygous. homozygous. genotype. segregated.

You are studying a protein that you call protein x. there is an aspartic acid at a key position in protein x which is important in the folding and stabilization of that protein. if this aspartic acid is changed to a different amino acid, which type of amino acid substitutions is most likely to allow the protein to fold normally?

Dna sequences in many human genes are very similar to the sequences of corresponding genes in chimpanzees. the most likely explanation for this result is that: