Question

In the context of haploid yeast strains A and B, which gene is epistatic dominant according to the provided information?

a. Gene A
b. Gene B
c. Both genes equally
d. Neither gene is dominant

What is the correct genotype of the haploid yeast obtained following meiosis in the given scenario?
a. AaBb
b. AABB
c. aabb
d. ABBB

For the products of meiosis in yeast, if the A gene is epistatic dominant to the B gene, what is the expected phenotype (grown/not grown) of the haploid yeast?
a. Grown
b. Not grown
c. It depends on other factors
d. None of the above

In the provided yeast scenario, if the B gene is epistatic recessive to the A gene, what would be the phenotype (grown/not grown) of the haploid yeast?
a. Grown
b. Not grown
c. It depends on other factors
d. None of the above

What is the interaction between genes A and B in the context of yeast meiosis?
a. Gene A and B have a synergistic relationship
b. Gene A and B have an epistatic relationship
c. Gene A and B are independent
d. The nature of the interaction is not specified

How does the researcher induce meiosis in yeast for the experiment described?
a. By using chemical inhibitors
b. By exposing yeast to high temperatures
c. Through genetic manipulation
d. The method is not mentioned in the question

What substrate does the researcher use for growing the products of meiosis in yeast?
a. Rich nutrient medium
b. Minimal substrate
c. Undefined medium
d. The substrate is not specified in the question

In the yeast experiment, why is it important to state the genotype and phenotype of the haploid yeast obtained?
a. To assess genetic diversity
b. To understand meiotic processes
c. To identify interactions between genes
d. All of the above

Answer 1

Without additional context about yeast specifically, it is not possible to determine whether gene A or B is epistatic dominant. The interaction between genes A and B and the specifics of meiosis induction or growth substrate in yeast are not provided in the question. Identifying the genotype and phenotype is vital for understanding genetic diversity, meiotic processes, and gene interactions.

Step-by-step explanation:

According to the information provided, neither gene A nor gene B can be considered epistatic dominant without additional context specifically about yeast. In the mouse example, it is gene C that is epistatic to gene A, but that context does not directly apply to genes A and B in yeast. When analyzing the genotypes obtained through meiosis, since yeast are haploid, the correct genotype of the haploid yeast would be either A or a, and B or b, not combinations such as Aabb or AABB.

For the phenotype expected following meiosis in yeast, if gene A were epistatic dominant over gene B, the presence of A would determine the phenotype regardless of B's alleles. Conversely, if gene B is epistatic recessive to gene A, only when B is in its recessive form (bb) would its phenotype be expressed, potentially altering the phenotype only in the absence of the dominant allele A.

The interaction between genes A and B in the shepherd's purse plant is described as a dominant epistatic relationship, where the dominant form of either gene results in a phenotype different from the double homozygous recessive genotype. However, the exact nature of the interaction between these genes in yeast meiosis is not specified in the question. Therefore, we cannot determine the epistasis relationship between genes A and B in yeast without further information.

The method to induce meiosis in yeast and the substrate used for growing the products are not mentioned in the question. Lastly, establishing the genotype and phenotype of the haploid yeast is critical for understanding genetic interactions, the meiotic process, and assessing genetic diversity (which encompasses all the provided options).