Four-o’ clock flowers may be red, pink or white. in the crossing of true-breeding red and true-breeding white plants, all the offspring are pink. use a punnett square to determine the correct genotype of the offspring if the red parent has genotype rr and the white parent has genotype rr.
(a) rr and rr
(b) rr and rr
(c) rr only
(d) rr only

C) Rr Only

Explanation:

The genotype of true breeding red parent plant is "RR" and that of the true breeding white parent plant is "rr". The red parent plant with "RR" genotype will form all the gametes with "R" allele while the white parent plant with "rr" genotype will form all the gametes with "r" allele. The random fusion of these gametes will form all the progeny with "Rr" genotype.

Since "R" is incompletely dominant over "r", the progeny with "Rr" genotype would have pink flowers.

answer by yourhope:

hi! : )

in which structure in the nucleus are ribosomes made?

b) nucleolus!

: )

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.