객관식
__________ stimulates the anterior pituitary to release follicle-stimulating hormone (FSH) and luteinizing hormone (LH).
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27. The Reproductive System
Meiosis
객관식
Which of the following steps must occur before Meiosis I in germ cells?
A
The DNA of the haploid cell is replicated.
B
The RNA of the diploid cell is replicated.
C
The DNA of the diploid cells is replicated.
D
The two cells need to be physically separated by cytokinesis.
검증된 단계별 안내1
Understand that meiosis is a type of cell division that reduces the chromosome number by half, resulting in the production of haploid gametes from diploid germ cells.
Recognize that before meiosis begins, the germ cell must be in a diploid state, meaning it has two sets of chromosomes.
Identify that the process of DNA replication occurs during the S phase of the cell cycle, which is part of interphase, before meiosis I begins.
Acknowledge that during this DNA replication, each chromosome in the diploid cell is duplicated, resulting in two identical sister chromatids for each chromosome.
Clarify that cytokinesis, the physical separation of cells, occurs after meiosis I and meiosis II, not before meiosis I. Therefore, the correct step before meiosis I is the replication of DNA in diploid cells.
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