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?
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
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.
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