cellular reproduction

• Which statement about mitosis is INCORRECT? - it forms 4 daughter cells
• What is the form of reproduction whose benefit is variability of the offspring? - sexual
• The diploid (2N) chromosome number in an organism is 42. What is the normal chromosome number of its sex cells? - 21
• These activities of the cell occur in both mitosis and meiosis EXCEPT: - synapsis
• Occurrence of synapsis between tetrads. - Meiosis 1
• Separation of homologous chromosomes. - meiosis 1
• Results in four sperm cells in human males. - Meiosis 2
• Daughter cells have chromosomes with two sister chromatids. - meiosis 1
• Daughter nuclei have chromosomes with single chromatids. - meiosis 2
• Occurrence of crossing-over of homologous chromosome. -meiosis 1
• chromosomes line up at the equatorial plane - metaphase
• last phase of nuclear division - telophase
• chromatids separate at the centromere - anaphase
• condensed chromosomes become visible - prophase
• DNA replication occurs - interphase
• Cytoplasm completely divides - cytokinesis
• Protein and RNA synthesis occur. - g1 phase
• DNA replicates. - s phase
• Cell prepares for the actual cell division - g2 phase
• Synapsis occurs. - prophase 1
• Crossing over occurs. - prophase 1
• Homologous pairs separate. - anaphase 1
• Two daughter cells are created - telophase 1
• Chromatids align along equator. - metaphase 2
• Chromatids move to opposite poles. - anaphase 2
• Daughter cells divide forming four haploid cells. - telophase 2
• Homologous chromosomes or tetrads align at the equator. - metaphase 1
• Spindle fibers attach to tetrads through their kinetochores - metaphase 1
• Which factor controls hereditary traits? - genes
• Which stage in the life of a cell is spent most? - interphase
• Which statement describes what happens during karyokinesis? - division of nucleus
• What is the substage of prophase I where the pairing of chromosomes begins? - zygotene
• Which stage of your development as a human being when you were just one cell? - zygote