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Prokaryotic cells divide by mitosis. cleavage. cytokinesis. binary fission. meiosis. The G1, S, and G2 phases of the cell cycle are collectively known as interphase. prophase. mitosis. meiosis. metaphase. Which cell cycle phase is not correctly matched to its description? Cell growth - G1 Protein synthesis - S Mitosis - M Preparation of cell division - G2 During which mitotic stage is the spindle disassembled, the nuclear membrane formed and the chromosomes uncoil? Anaphase Metaphase Prophase Telophase Interphase During which stage of the cell cycle does the synthesis of microtubules occur? S phase G2 G1 Telophase Prophase Mitosis occurs in germ cells. True False Pairs of chromosomes that have the same size, shape, and function are called a. sister chromatids b. homologous chromosomes c. heterologous chromosomes d. daughter cells Duplication of DNA occurs twice, before meiosis I and meiosis II. before meiosis II only. during interphase. during prophase I. Genetic variability is possible because of ________ during or after meiosis. independent assortment crossing over fertilization with a nonrelated gamete All of these are correct. Which of these is not a unique feature of meiosis? Synapsis Reduction division Diploid daughter cells Haploid daughter cells The process that serves to decrease cellular chromosome number by half is mitosis. meiosis. binary fission. both mitosis and meiosis decrease chromosome number by half. mitosis, meiosis, and binary fission all decrease chromosome number by half. The purpose of meiosis I is to separate homologous chromosomes. to replicate chromosomes. to create 4 haploid cells. to separate sister chromatids. to repair errors in DNA synthesis. Which is incorrect about meiosis? Crossing over occurs in prophase I Meiosis I results in 2 haploid cells Sister chomatids separate in anaphase I Meiosis II is like mitosis Chromosome replication only occurs in interphase I In humans, germ-line cells are in the brain. the muscle cells. the kidneys. the ovaries and testes. the eyes. All of the following are sources of genetic variety except random fertilization. independent assortment. crossing over. synapsis.