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The inheritance rule was initially discovered by Mendel and it depends on clear or qualitative traits....

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Biology

The inheritance rule was initially discovered by Mendel and itdepends on clear or qualitative traits. The theory was based on asingle gene that was responsible for one character. However,expression of many traits are not governed by a single gene, rathercan involve multiple genes as well as additive effects. This kindof inheritance pattern is known as quantitative and is demonstratedby East (1916) as well as others. He performed experiments using 2homozygous, pure-breeding lines of Nicotiana longiflorathat differed in corolla length. After crossing these lines, F1offspring had an intermediate length for corolla and had samevariation level as in parents. But found a very different resultfor F2 and F3 than expected. Discuss the reasons for this resultand if it agrees/disagrees with Mendel’s law. Using obtainedknowledge so far, what kind of cumulative effects would you add tothis variation?

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When the trait is controlled by single gene then it will follow the Mendels law But when the trait or morphological expression is controlled by multiple genes then it shows different degrees of expression between the dominant and recessive expression depending on the genetic makeup like number of dominant and recessive alleles of respective gene In above mentioned case the morphological expression is    See Answer
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