Gregor Mendel's Second Experiment Storyboard
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Gregor Mendel wants to find out if two characteristics can be inherited together. Also, if they're inherited together how do they breed when two characteristics are inherited.
What does Gregor Mendel want to find out about pea plants in his second experiment?
Mendel's second experiment.2018.ck-12.19Mar.2018
A dihybrid cross is when a male and a female are crossed, and two characteristics are tracked at the same time. The offspring from that cross are called dihybrids.
What is a Dihybrid Cross?
Gregor Mendel started off his experiment by picking some pea plants, and used what he learned from his first set of experiments. There were some different alleles on the genes of those pea plants. Mendel crossed round and yellow seeds with green and wrinkled seeds. Since yellow and round were dominant to green and wrinkled, the F1 generation had yellow and round seeds. But after he let the plants self pollinate, he noticed that the recessive traits(green and wrinkled) had reappeared in F2 generation. One seed's genotype read rryy of the F2 generation which definitely means that seed had homozygous recessive genes. That would lead to only one seed having a phenotype of green and wrinkled traits. The F1 generation however was so much different since it had all heterozygous dominant.
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