In fruit flies, the gene for red eyes (r) is dominant and the gene for sepia eyes (r) is recessive. if a red-eyed homozygous fly (rr) and a red-eyed heterozygous fly (rr) mate together, what are the possible genotypes of their offspring? (hint: you many want to complete a punnett square.)
rr and rr
rr only
rr and rr < i think its this one
rr, rr, and rr

Yes the answer you expected is correct. Its RR and Rr.

Explanation:

As per the given information the parent generation is as follows:

Parent: Red eyed homozygous fly (RR)   x  red eyed heterozygous fly (Rr)

Gametes: R and R , r

F1 generation : RR and Rr

The F1 generation will have only these two possible genotypes.

his research revealed two genetically different groups of prokaryotes, which justified splitting kingdom monera into two kingdoms. the genetic and cellular differences were so great, that these two kingdoms were eventually placed into different domains in the current three-domain system.

yes!

explanation:

because it has a type of fat that can make you extremely sick