In diploid yeast strains, sporulation and subsequent mei...

Question

In diploid yeast strains, sporulation and subsequent meiosis can produce haploid ascospores, which may fuse to reestablish diploid cells. When ascospores from a segregational petite strain fuse with those of a normal wild-type strain, the diploid zygotes are all normal. Following meiosis, ascospores are petite and normal. Is the segregational petite phenotype inherited as a dominant or a recessive trait?

Accepted Answer

Hi, everybody. Let's take a look at this practice problem together which of the following statements about inheritance is true. So we're talking about inheritance and we need to identify the true statement. So let's dive right into our options. A deployed organisms can only inherit one a lil for each gene. Recall that deployed organisms have two sets of chromosomes. So they inherit one A will for each gene from each parent. So in total, they would inherit two alleles for each gene. So A is not true, then be hap Lloyd organisms cannot inherit any a little for a gene. And this statement is also false recall that Hap Lloyd organisms inherit one set of chromosome And therefore they only inherit one a little for each gene. So B is also incorrect option. D hap Lloyd organisms inherit two alleles for each gene, one from each parent. And as we discussed, an option, be hap Lloyd organisms have one set of chromosomes. Therefore, they would only inherit one a little for each gene N D is also a false statement. That means C is the correct answer. Deployed organisms inherit two alleles for each gene, one from each parent. And that's the correct answer. Since deployed organisms have two sets of chromosomes for each gene. They inherit one a little from the mother and one a little from the father. So, c is the correct answer. Alright, everyone, I hope you found this helpful and I'll see you soon for the next practice problem.

Key Concepts

Diploid and Haploid Cells

Sporulation and Meiosis

Dominant and Recessive Traits

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