In cattle, roan coat color (mixed red and white hairs) occurs in the heterozygous (rr) offspring of red (rr) and white (rr) homozygotes. which of the following crosses would produce offspring in the ratio of 1 red: 2 roan: 1 white?
a) red × white
b) roan × roan
c) white × roan
d) red × roan
e) the answer cannot be determined from the information provided.

Plz ! a frog has a genetic mutation in skin cells that causes part of its skin to turn orange the frog will not pass this genetic mutation onto its offspring because, a. the offspring will inherit skin cells from the other parent. b. mutated skin cells cannot divide and produce daughter skin cells. c. skin cells do not contribute genetic material to sex cells. d. parents do not contribute genetic material to their offspring.

Is becoming less expensive to screen blood samples for dna certain diseases have genetic basis what is possible ethical concern about the availability of inexpensive dna testing

Is this mrna or rna need need the answer in a hurry