Your answer is B, the chromosomes must replicate. Meiosis is a process which takes one diploid cell (46 chromosomes) and makes 4 haploid cells (23 chromosomes). In order to do this, the DNA must divide. … We see here that the amount of chromosomes must double before meiosis.
What must happen before meiosis can begin answers?
there must be replication of chromosomes, replication of organelles, formation of tubulin protein so that it can form spindles in meiosis!
What has to happen before meiosis?
For example, prior to undergoing meiosis, a cell goes through an interphase period in which it grows, replicates its chromosomes, and checks all of its systems to ensure that it is ready to divide. Like mitosis, meiosis also has distinct stages called prophase, metaphase, anaphase, and telophase.
What is the process of meiosis?
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. … The process results in four daughter cells that are haploid, which means they contain half the number of chromosomes of the diploid parent cell.
What must happen before mitosis can begin Brainly?
hints what must happen before a cell can begin mitosis? the nuclear envelope must break up. the nucleus must divide in two. the chromosomes must be duplicated.
What must occur before meiosis begins and why?
Before entering meiosis I, a cell must first go through interphase. This is the same interphase that occurs before mitosis. The cell grows, copies its chromosomes and prepares for division during the G 1start subscript, 1, end subscript phase, S phase, and G 2start subscript, 2, end subscript phase of interphase.
How much DNA replication is required before meiosis can begin?
The initiation of meiosis requires both intrinsic and extrinsic signals. Meiosis is characterized by one round of DNA replication followed by two rounds of cell division, resulting in haploid germ cells.
Why is DNA not replicated after meiosis?
Is the DNA replicated after Meiosis 1? Why or why not? No, because DNA is replicated in Interphase first and no interphase stage exists after after Meiosis 1.
What is process of mitosis?
Mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical daughter cells. During cell division, mitosis refers specifically to the separation of the duplicated genetic material carried in the nucleus.
Which of the following is the main purpose of meiosis?
Therefore the purpose of meiosis is to produce gametes, the sperm and eggs, with half of the genetic complement of the parent cells.
What is the correct order of these meiotic events?
The correct order of mitotic events which occur during meiosis is: Formation of synaptonemal complex, recombination, separation of homologous chromosomes, separation of sister chromatids.