Which of the following statements is true?

the number of chromosomes in all organisms is the same.
there are more chromosomes in a cell than there are genes.
sometimes, a single gene can influence many traits.
the karyotypes for a male human and a female human will look exactly the same.

Asap indicate the coat color and the proportion of offspring with that color for each of the following crosses of rabbits. assume all are homozygous. alleles: a=agouti, c=chinchilla, a=albino, a is dominant over c and a, c is dominant over a agouti x chinchilla a) 1/2 chinchilla, 1/2 agouti b) 3/4 chinchilla, 1/4 agouti c) all agouti