The hairs of a man were found with the follicle in tact. The hair
was 19 mm from follicle to tip. If
hair grows approximately 0.44
mm per day, how old is the tip of
the hair?

Urgent in guinea pigs, black fur (b) is dominant over white fur (b). cross a heterozygous (hybrid) black guinea pig with a homozygous (purebred) white guinea pig. complete a punnett square, identify the genotype(s), phenotype(s), and probability (% and fraction) that the offspring will be black and white?