Predict the results from the following crosses: rr x rr.
a) 50% rr: 50% rr
b) 75% rr: 25% rr
c) 100% rr

A) 50% Rr: 50% rr

The cross Rr x rr, represent a cross between a heterozygous genotype and a recessive genotype.

The offspring of the cross will be; Rr, Rr, rr, rr, which means there 50 percent Rr or heterozygous and 50 percent rr, or recessive.

The formula  for a heterozygous x homozygous recessive cross is;

Formula: Rr x rr

Offspring;

Geneotypes: 50% Rr, 50% rr, and

Phenotypes: 50% dominant trait, 50% recessive trait

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds