BIO 156 Exam 2 Practice Questions (Book & RioLearn) Questions And Answers

Sister chromatids are which of the following? a. Found right after a cell divides. b. Formed when chromatids separate during cell division. c. Unique to prokaryotes. d. Tightly linked together at a centromere. e. Made only of DNA - Answer-d. Tightly linked together at a centromere. Looking into your microscope, you spot an unusual cell. Instead of the typical rounded cell shape, the cell has a very narrow middle separating two bulging ends. It sort of looks like the number 8! Then you realize, this is a cell that is which of the following? a. Undergoing cytokinesis. b. In the G1 phase of interphase. c. About to undergo mitosis. d. In the S phase of interphase. e. In the G2 phase of interphase. - Answer-a. Undergoing cytokinesis. The phase of mitosis during which of the nuclear envelope fragments and the nucleoli disappear is called which of the following? a. Interphase b. Metaphase c. Telophase d. Prophase e. Anaphase - Answer-d. Prophase During which phase of mitosis do the chromosomes line up on the plane located equidistant from the two spindle poles? a. Interphaseb. Metaphase c. Telophase d. Prophase e. Anaphase - Answer-b. Metaphase The creation of offspring carrying genetic information from just a single parent is called which of the following? a. Asexual reproduction b. A life cycle c. Sexual reproduction d. Regeneration e. None of these choices are correct - Answer-a. Asexual reproduction Which of the following is false? a. Cell division can reproduce an entire organism. b. Cell division ensures the continuity of life from generation to generation. c. Cell division is common in eukaryotes but rare in prokaryotes. d. Cell division is necessary for development to occur. e. Cell division is the basis of both sexual and asexual reproduction. - Answer-c. Cell division is common in eukaryotes but rare in prokaryotes. Independent orientation of chromosomes at metaphase I results in an increase in the number of which of the following? a. Gametes b. Possible combinations of characteristics c. Points of crossing over d. Homologous chromosomes e. Sex chromosomes - Answer-b. Possible combinations of characteristics During which stage of meiosis do synapsis and the formation of tetrads occur?a. Interphase I b. Interphase II c. Prophase I d. Prophase II e. None of these choices are correct - Answer-c. Prophase I Which of the following is false? a. The offspring of two different varieties are called hybrids. b. The parental plants of a cross are the P generation c. The hybrid offspring of an F1 cross are the F2 generation d. Hybridization are also called a cross. e. The hybrid offspring of a cross are the P1 generation - Answer-e. The hybrid offspring of a cross are the P1 generation