dre Mendelian inheritance Worksheet Question1 Harry studies plum tree genetics,

Question

dre Mendelian inheritance Worksheet Question1 Harry studies plum tree genetics, He had a pure-breeding two unusual characteristics; the mutant tree produces figs instead of plums and there are huge spikes growing out of the branches. Harry crossed the mutant with a pure-breeding wild-type plum tree. The Fi progeny produce figs, but have no spikes mutant strain of plum trees t Mutant fig tree with spikes X Wild type plum tree Fi: fig trees a) For each pair, circle the dominant phenotype. Plums Figs 69) Spikes No spikes b) Harry performed a backcross of an Fi individual with an Fo individual from the mutant strain If there are 32 progeny trees from this cross how many trees have each of the following phenotypes? Figs, spikes Figs, no spikes Plums, spikes Plums, no spikes Question 2 1. The schematic below represents the genetic constitution of a cell during the interphase of the ce cycle. The cell is part of the gamete-producing tissue of a plant a. What does the letter R, or r represent? - dominant r- recessauu

Explanation / Answer

here in problem 1 the fig and no spike are the dominant characters and pums/ spike are recessive characters. If the inheritance follows the mandelian pattern than the dominant characters are more predominant in progeny. Typically follows 9:3:3:1 pattern

here fig: no spike is dominant hence it is 18, figs: spike are 6, plum: non spike are 6 and plum: spike are 2

Figs: spike                               6

Figs: non spike                     18

Plums: spike                           2

Plums: non spike                    6

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