Question

1. Can haploid organisms reproduce using meiosis?            A) Yes             B)        No

Explain your answer

2. The number of chromosomes in a diploid sexual species is 14. What is the exact probability that an individual of this species could produce by meiosis a gamete that includes all 7 chromosomes that the individual itself inherited from it's mother while excluding all 7 chromosomes inherited from its father?

A) Zero

B) 7/14 = 50%

C) 1/2 ⁷

D) 7 ^1/2

E) 1/7 (1 out of seven gametes) = 14%

F) There is no answer to this question

3. The time to fixation of an allele at a locus due to genetic drift decreases as population size increases.

            A = TRUE        B = FALSE  

4. Assess the truth of both of the following two statements: #1: “Pleiotropy contributes to additive genetic variance of continuously distributed traits” and #2: “Pleiotropy contributes to phenotypic variation of continuously distributed traits.

A) True and True

B) True and False

C) False and True

D) False and False

Answer 1

1) Yes.

Meiosis takes place in haplontic lifecycle during the formation of the zygote of haploid organisms & more zygote development occurs for the embryo formation via mitotic cell division, which is going to be haploid.

Haploid : when the cells possess only one set of chromosomes.

Diploid : when the cells possess 2 pairs of chromosomes.

Generally, meiosis takes place in the diploid organisms. Here, the chromosomes goes through meiosis & results in 4 distinct N chromosomes.

In some conditions, meiosis occurs in haploid organisms too, here 2 haploid cells fuse together to produce diploid zygote, followed by meiosis.

hope it helps.