Agroup of species that have similar characteristics is called
a. an order
b. a family
c. a phylum
d. a genus

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

This is a situation in which genes are attached to an organism's sex chromosomes; the sex of an organism influences the expression of a gene.