AP BIOLOGY

LABORATORY REVIEW

MITOSIS AND MEIOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In meiosis 2 the cell division begins with how many daughter cells?
A
one
B
two
C
three
D
four
Explanation: 

Detailed explanation-1: -As soon as the cytoplasm divides, meiosis is complete. There are now four daughter cells-two from each of the two cells that entered meiosis II-and each daughter cell has half the normal number of chromosomes (Figure 7).

Detailed explanation-2: -Meiosis II starts with two haploid parent cells and ends with four haploid daughter cells, maintaining the number of chromosomes in each cell. Homologous pairs of cells are present in meiosis I and separate into chromosomes before meiosis II.

Detailed explanation-3: -The process results in four daughter cells that are haploid, which means they contain half the number of chromosomes of the diploid parent cell. Meiosis has both similarities to and differences from mitosis, which is a cell division process in which a parent cell produces two identical daughter cells.

Detailed explanation-4: -Summary of Meiosis II Meiosis II begins with the 2 haploid cells where each chromosome is made up of two connected sister chromatids. DNA replication does NOT occur at the beginning of meiosis II. The sister chromatids are separated, producing 4 genetically different haploid cells.

Detailed explanation-5: -After meiosis II, when each parent cell gets divided into two gametes each gamete cell contains 23 chromosomes. In this phase, each gamete remains haploid in nature. At the end of meiosis II, each cell will have the half number of the actual chromosome i.e. 23 chromosomes.

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