1 Cell division in unicellular organisms results in ____ individuals.A) 4 B) 2 C) 1 D) 8 2 Which best describes prokaryotes?A) Unicellular bacteria B) Prominent nucleus C) Many chloroplasts D) All of these 3 Chromosomes are composed of _____.A) DNA only B) proteins only C) DNA and proteins 4 Prokaryotes primarily reproduce _____.A) by binary fission B) sexually C) via meiosis 5 If a cell with 46 chromosomes undergoes mitosis, the daughter cells will have _____ chromosomes.A) 23 B) 46 C) 92 6 The region where sister chromatids are attached to one another is called the _____.A) centromere B) spindle C) aster D) centriole 7 The _____ most likely provide(s) the material for spindle formation.A) nucleus B) cytoskeleton C) sister chromatids D) plasma membrane 8 Which of the following is NOT associated with prophase?A) Fragmentation of the nuclear envelope B) Disappearance of the nucleolus C) Separation of the sister chromatids D) Visible chromosomes 9 After _____ nuclear division is completed.A) prophase B) metaphase C) telophase D) interphase 10 Alignment of the chromosomes at the equator of the spindle is characteristic of _____.A) metaphase B) prophase C) anaphase D) telophase 11 Mistakes in the process of mitosis may result in _______.A) the duplication of chromosomes in cells B) the partial distribution of chromosomes C) the destruction of surrounding cells D) All of these 12 The DNA is replicating during the ________ stage of the cell cycle.A) mitotic B) G1 C) G2 D) S 13 New methods of cancer treatment prevent _____, which cuts off the supply of nutrients and oxygen to the tumor.A) metastasis B) angiogenesis C) differentiation D) anaplasia 14 A disorganized, generally encapsulated mass that does not invade adjacent tissue is known as a _____.A) neoplasia B) benign tumor C) anaplasia 15 Interphase consists of the __________ stages of cellular growth and division.A) G1, G2 and M B) G1, S and G2 C) M, S, and G2 D) M, S and G1 16 The p53 protein _____.A) inhibits repair enzymes B) stops the cell cycle during repair C) inhibits apoptosis D) All of the above 17 Programmed cell death is known as _____.A) mitosis B) cytokinesis C) apoptosis 18 When most cancers occur, _____ is absent or nonfunctional.A) the p53 gene B) survivin C) angiogenesis 19 If the diploid number of an organism is 30, the haploid number of the gametes is ___________.A) 30 B) 60 C) 15 D) 10 20 When mutations occur in proto-oncogenes, they become cancer causing agents called ______.A) tumor suppressor genes B) oncogenes C) stem cells D) haploid cells