All 113 baby mice in an experiment are Rr, the parents are probably (do a Punnett square to be sure) a

RR x RR

b

RR x rr

c

Rr x Rr

The correct answer is option B.

Explanation:

If am individual cross between two true breed mice the probability of offspring with heterozygous condition  is 100 percent in such cross. True breed is an individual organism with homozygous for the particular character either dominant or recessive.

So, if mice with RR (purebred or homozygous dominant) bred with mice with  rr (homozygous recessive), all the offspring will be heterozygous in genotype which is Rr.

Thus, the correct answer is : option B. (Punnet square is attached)

wheres the answers ?

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: