Bio 181 Chapter 12 And 13. Meiosis And Mitosis
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Meiosis and mitosis are both proceeded by one round of DNA replication. Meiosis includes two nuclear divisions and Mitosis produces 2 daughter cells which are genetically identical to the parent cell. Take up the Bio 181 Chapter 12 and 13 on Meiosis and Mitosis and see how well you understood it. All the best!
- 1.In humans, the 22 pairs of chromosomes that dont include the sex chromosomes are called?
- A.
Somatic cells
- B.
Tetrads
- C.
Autosomes
- D.
Diploid
- E.
Haploid
- 2.What are the replicated forms of a chromosome joined together by the centromere and eventually separated during mitosis or meiosis II? these can be first seen in prophase or mitosis.
- A.
Sister chromatin
- B.
Sister chromatids
- C.
Chiasma
- D.
Crossing over
- E.
Sex chromosomes
- 3.Conditon in which cells contain two sets of chromosomes (2N)
- A.
Diploid
- B.
Haploid
- C.
Somatic
- D.
Autosome
- 4.From fertilized egg (multicellular organisms)
- A.
Reprodution
- B.
Growth
- C.
Tissue repair
- D.
Crossing over
- 5.Cleavage furrow
- A.
Plants
- B.
Animals
- C.
Humans
- 6.What are the five stages of mitosis?
- 7.The two steps in cell division are
- A.
Meiosis and mitosis
- B.
Nuclear division and cytokinesis
- C.
Growth and reproduction
- D.
Tissue repair and crossing over
- 8.Dissimilar chromosomes that determine an individuals sex
- A.
Autosome
- B.
Somatic
- C.
Gametes
- D.
Sex chromosome
- 9.Meiosis creates genetic.....?
- A.
Genes
- B.
Variation
- C.
Chance
- D.
Autosomes
- 10.What is a reduction division?
- A.
Mitosis
- B.
Chiasma
- C.
Meiosis
- D.
Genes
- 11.What holds together sister chromatids in prometaphase?
- A.
Chromatin
- B.
Vessicles
- C.
Centromere
- D.
Glue
- 12.Any cell other then a sperm or egg cell
- A.
Zygotes
- B.
Gene
- C.
Sex cell
- D.
Somatic cell
- 13.The total heridatary endowment of a cell of a species
- A.
Zygote
- B.
Gametes
- C.
Gene
- D.
Genome
- 14.If there is not room it wont grow. If you remove cells gap will be filled in.
- A.
Density-dependant inhibition
- B.
Glue
- C.
Haploid
- D.
Diploid
- 15.Condition in which cells contain 1 set of chromosomes (N)
- A.
Diploid
- B.
Haploid
- C.
Genetic variation
- D.
Genomes
- 16.Human somatic cells contain how many chromosomes?
- A.
46
- B.
22
- C.
6
- D.
39
- 17._________________ most closely resembles events of mitosis except that the cells are ___________.
- A.
Interphase, diploid
- B.
Meiosis II, diploid
- C.
Interphase, haploid
- D.
Meiosis II, haploid
- 18.One of the earliest events that distinguishes meiosis occurs in prophase I and involves:
- A.
Condensation of chromosomes
- B.
Loss of the nuclear membrane
- C.
Movement of chromosomes towards the metaphase plate
- D.
Pairing of homologous chromosomes
- 19.The stage of meiosis where cells become haploid.
- A.
Prophase I
- B.
Prophase II
- C.
Anaphase I
- D.
Anaphase II
- 20.Which of the following is unique to mitosis and not a part of meiosis?
- A.
Homologous chromosomes pair forming bivalents
- B.
Homologous chromosomes cross over
- C.
Chromatids are separated during anaphase
- D.
Homologous chromosomes behave independently
- 21.The process of meiosis produces four cells with nonidentical chromosomes. This diversification occurs during:
- A.
Telophase I
- B.
Prophase I
- C.
Metaphase II
- D.
Metaphase I
- 22.A human cell has 46 total or 23 pairs of chromosomes. Following mitosis, the daughter cells would each have a total of ______ chromosomes. After meiosis I, the two daughter cells would have _____chromosomes, and after meiosis II ______ chromosomes.
- A.
46,46,46
- B.
46,23,23
- C.
23,23,23
- D.
46,12,12
- 23.Organizatioal unit of hereditary material (genes) in the nucleus of eukaryotic organisms
- A.
Chromatin
- B.
Chromosomes
- C.
Chromatid
- D.
Autosomes
- 24.Sister chromatids are pulled apart to each end of the cell
- A.
Cell division
- B.
Nuclear divison
- C.
Meiosis
- D.
Locus
- 25.Unicellular organsms, divison of one cell into 2 reproduces an entire organism
- A.
Growth
- B.
Tissue repair
- C.
Crossing over
- D.
Reproduction
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