A botanist is interested in generating a sufficient number of tall, white tulips

Question

A botanist is interested in generating a sufficient number of tall, white tulips of genotype T/t r/r for an experiment. She knows that the genes t and r are linked on the same chromosome and are located 12 map units apart. The researcher begins by crossing a tall, red tulip of genotype T/T- R/R with a short, white tulip of genotypet/t r/r to generate a dihybrid tall, red tulip of genotype T/t R/r. Upon test-crossing the dihybrid to generate 300 offspring, how many of the offspring should the researcher expect to be the desired tall, white tulips? Enter your answer numerically without units Type answer here. Be attentive to spelling. Submit Question Feedback Submit Answer

Explanation / Answer

from a dihybrif cross, we all know in f2 generation

The number of expected tall white plant =3/16

For 300 offspring = 3/16x300

=56.25

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