2-52. At what stage of the cell cycle is the DNA content of the chromosome duplicated, and do centrioles divide: d. synthetic++
2-53. What stage of the cell cycle is characterized by active RNA synthesis, tubulin synthesis, adenosine tiposphate synthesis, and maturation of the daughter centrioles: e. premitotic++
2-54. The most of somatic cells of the organism are at the stage: a. G0++ 2-55. Apoptosis is: a. programmed cell death++
2-56. At which stage of mitosis do the chromosomes move until they have separated into two groups near the poles of the сell: d. anaphase++
2-57. At which stage of mitosis the two centrioles separate and move to the opposite poles of the cell: b. prophase++
2-58. Which is the final phase of mitosis: c. telophase++
2-59. At which stage of mitosis do chromosomes line up across the centre, or equator, of the cell: b. metaphase++
2-60. Which stage of mitosis is followed by cytokinesis: e. telophase++
2-61. At which stage of mitosis do sister chromatids separate: c. anaphase++
2-62. As a result of mitotic division, the two somatic cells were formed. What chromosome number do they contain: c. diploid++
3. EMBRYOLOGY 3-1. Spherical sex cell one hundred and thirty micrometers in diameter, covered by pellucid zone and radiate crown; it contains haploid number of chromosomes: d. mature ovum++
3-2. Human oocyte in accordance with the arrangement of its cytoplasmic yolk inclusions is: d. isolecithal+
3-3. The cytoplasm of the oocyte does not contain: e. cell centre++
3-4. Cortical granules of the oocyte: d. take part in the formation of fertilization membrane++
3-5. Common feature of spermatozoon and oocyte is: e. haploid chromosome number++
