Bio 182 bang Exam Questions with Correct Answers

Bio 182 bang Exam Questions with Correct Answers prophase - Answer-dna replication/condense prometaphase - Answer-nuclear envelope dissolves, spindle poles and microtubules appear metaphase - Answer-microtubules attach to chromosomes at kinetochores, line up along the midline anaphase - Answer-cohesin dissolves, sister chromatids seperate, move to opposite poles telophase/cytokinesis - Answer-cell membrane pinches, forming two cells, nuclear envelope reforms, chromatids decondense When does the cell replicate it's DNA? a. before mitosis begins b. during the early part of mitosis c. during the later part of mitosis - Answer-a How are the four replicated chromosomes in the parent cell shared between the two daughter cells? a. each daughter cell receives two of the four replicated chromosomes b. each daughter cell receives half of each replicated chromosome c. one daughter cell receives all replicated chromosomes d. the replicated chromosomes line up halfway between the daughter cells - Answer-b chromosomes are formed as the DNA coils around special proteins called _____ - Answer-histones within each chromosome, each DNA molecule is coiled into a seperate sister chromadid, which are connected bya a protein called _____ - Answer-cohesin what mitosis event doesn't occur properly if the nuclear envelope doesn't dissolve? a. cytokinesis b. condensing DNA c. moving sister chromatids to opposite sides of the cell - Answer-c which of the following occurs in plant cells but not animal cells during mitosis? a. nuclear envelope dissolves b. cell membrane pinches inward to form daughter cells during cytokinesis c. the cell wall is constructed during cytokinesis d. DNA is replicated - Answer-c closed mitosis - Answer-nuclear envelope doesn't dissolve during mitosis open mitosis - Answer-nuclear envelope dissolves during mitosis human cells have 46 chromosomes at the start of mitosis. how many sister chromatids are passed on to each daughter cell? a. 2 b. 23 c. 46 d. 92 - Answer-c human cells have 46 chromosomes at the start of mitosis. how many DNA molecules are in a cell at the start of mitosis? a. 2 b. 23 c. 46 d. 92 - Answer-d