Does the virus use any energy while replicating?

Complete the possible outcomes for each generation in the pedigree chartaa aa aa

Which represents a negative impact of technology

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?