Cell Cycle And Meiosis: Question Preview (ID: 31913)


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The difference between mitosis/meiosis is --
a) asexual/sexual b) 2 diploid/4haploid daughter cells c) Meiosis involves crossing over and tetrads d) All of these are correct
This is when the cell carries out its normal everyday, metabolic functions
a) Interphase b) Prophase c) Metaphase d) Telophase
chromatin coils into chromosomes; nuclear envelope breaks down; centrioles appear during
a) during anaphase. b) during telophase. c) during prophase. d) during metaphase.
A cell grows to a mature size during the
a) G2 phase b) G1 phase c) S phase d) None of these are correct
Most of the cell cycle is usually spent in this phase.
a) Prophase b) Cytokinesis c) Interphase d) Metaphase
What is the main purpose of the cell cycle?
a) To create two identical cells, with the same DNA and the same organelles. b) To produce 4 daughter cells. c) To produce daughter cells that are different. d) To be utilized with sexual reproduction.
During a checkpoint of the cell cycle, p53 stops the cycle if DNA is damage. This occurs during this phase.
a) S b) G2 c) G1 d) G0
During which stage of meiosis does crossing-over occur?
a) Metaphase I of meiosis I b) Prophase II of meiosis II c) Prophase I of meiosis I d) Prophase III of meiosis III
If a sperm cell contains 8 chromosomes, it comes from an animal that has ____________ chromosomes.
a) 4 b) 8 c) 16 d) 2
How many times does DNA replicate during meiosis?
a) 1 b) 2 c) 0 d) None of these
Chromosomes are _____________.
a) genetic material b) in all living organisms c) condensed chromatin d) all of the these
When homologous chromosomes align at the metaphase plate and align randomly during meiosis, this is called:
a) Crossing over b) Independent Assortment c) Cytokinesis d) Zygote
The paired chromosomes that are the same length and the genes for the same traits are:
a) Homologous b) Alleles c) Locus d) Crossed over
This is cased by uncontrolled cell division.
a) Mutation b) Chromatid c) Apoptosis d) Cancer
When proofreading and repair mechanisms fail in DNA reproduction, this can occur.
a) Chargaff b) Mutation c) Polymerase d) Acetyl-CoA can be formed
During which stage of mitosis does the cleavage furrow occur?
a) prophase b) metaphase c) telophase d) anaphase
This attaches together the duplicated sister chromatids.
a) Centromeres b) Histones c) Chromosomes d) Kinetochores
Meiosis causes
a) Genetic variation b) similar traits c) identical chromosomes d) all of these
What do chromosomes do in meiosis, but not in mitosis?
a) Each chromosome makes a copy. b) The homologous chromosomes form pairs. c) Chromosomes line up in the middle of the cell. d) Chromatin condense or shorten up before cell division begins.
Which pair shows the number of cells present both before and after meiosis II?
a) 1 and 2 b) 1 and 4 c) 2 and 4 d) 4 and 4
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