When cattle with solid white coats (W) are mated to cattle with solid red coats (R) the offsping are roan (WR) meaning they have coats containing both white and red hairs. the roan coat is an example of condominance. A farmer who makes two roan cattle. what is the chance that thier offspring will also be roan?

There are 50% of probabilities of getting roan cattle, WR

Explanation:

Available data:

1st Cross: Between cattle with solid white coats and cattle with solid red coats

Parental)  WW   x   RR

Gametes) W   W   R   R

F1) 100% WR

2nd Cross: Between two roan cattle

Parental)   WR   x    WR

Gametes) W   R     W   R

Punnet Square)   W        R

                   W    WW    WR

                   R     WR     RR

F2) Progeny genotype: 1/4 solid white-coated cattle, WW (25%)

                                      2/4=1/2 roan cattle, WR (50%)

                                      1/4 solid red-coated cattle, RR (25%)

There are 50% of probabilities of getting roan cattle, WR

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.