A plant line with reduced fertility comes to the attenti...

Question

A plant line with reduced fertility comes to the attention of a plant breeder who observes that seed pods often contain a mixture of viable seeds that can be planted to produce new plants and withered seeds that cannot be sprouted. The breeder examines numerous seed pods in the reduced fertility line and counts 622 viable seeds and 204 nonviable seeds.

Propose an additional experiment to test the genetic mechanism you propose. If your hypothesis is correct, what experimental outcome do you predict?

Accepted Answer

Everyone. Let's take a look at this question together in a case where a wild type allele produces an enzyme with full activity and a mutant allele produces very little enzyme activity. The mutant allele is what? So let's recall what we know about different alleles and enzyme activity to figure out what the mutant allele would be. So we know that when it comes to alleles, the dominance oven A leo is determined by the protein products and these protein products of the protein products of the files work to produce the genotype. And when it comes to the enzyme activity found within the illegal, in the case of this mutant allele having very little enzyme activity, we know that very little enzyme activity results in the Munich being recessive. And so that means that answer choice B recessive is the correct answer because this mutant allele having very little enzyme activity means that it is recessive and it is not dominant because in order for the will to be dominant, we need to have no enzyme activity which would lead to it being dominant. So answer choice B is the correct answer. I hope you found this video to be helpful. Thank you and goodbye.

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