Horticulturists are attempting to breed a rare and beautiful variety of pine tree, where all the branches droop gracefully to the ground, rather than extend outward in the normal manner. Drooping branches are recessive, and the normal variety is due to a dominant

gene. What percentage of the drooping variety will be produced by crossing two heterozygous pines?

Question

John Snow

4 November, 12:23

+1

Answers (1)

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Schroeder · Answer 1

it's 25%

Explanation:

the recessive is two r and one R is makeing the gene dominant. Heterozygous is Rr and two make 75% dominant and 25% recessive