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5 Written questions

5 Matching questions

  1. chiasmata
  2. metastasis
  3. crossing over
  4. chromatin
  5. cell cycle
  1. a An ordered sequence of events in the life of a cell, from its origin in the division of a parent cell until its own division into two. The eukaryotic is composed of interphase (including GG1, S, and GG2 subphases) and M phase (including mitosis and cytokinesis).
  2. b The complex of DNA and proteins that makes up eukaryotic chromosomes. When the cell is not dividing, it exists in its dispersed form, as a mass of very long, thin fibers that are not visible with a light microscope.
  3. c The reciprocal exchange of genetic material between nonsister chromatids during prophase I of meiosis.
  4. d The spread of cancer cells to locations distant from their original site.
  5. e The X-shaped, microscopically visible region where crossing over has occurred earlier in prophase I between homologous nonsister chromatids. they become visible after synapsis ends, with the two homologs remaining associated due to sister chromatid cohesion.

5 Multiple choice questions

  1. A display of the chromosome pairs of a cell arranged by size and shape.
  2. The pairing and physical connection of duplicated homologous chromosomes during prophase I of meiosis.
  3. The period in the cell cycle when the cell is not dividing. During this phase, cellular metabolic activity is high, chromosomes and organelles are duplicated, and cell size may increase. often accounts for about 90% of the cell cycle.
  4. A life cycle in which there is both a multicellular diploid form, the sporophyte, and a multicellular haploid form, the gametophyte; characteristic of plants and some algae.
  5. in a duplicated chromosome, the region on each sister chromatid where they are most closely attached to each other by proteins that bind to specific DNA sequences; this close attachment causes a constriction in the condensed chromosome.

5 True/False questions

  1. gene locusspecific location of a gene on a chromosome

          

  2. density dependent inhibitionThe phenomenon observed in normal animal cells that causes them to stop dividing when they come into contact with one another.

          

  3. zygoteThe genetic material of an organism or virus; the complete complement of an organism's or virus's genes along with its noncoding nucleic acid sequences.

          

  4. genomeThe diploid cell produced by the union of haploid gametes during fertilization; a fertilized egg

          

  5. autosomesA chromosome that is not directly involved in determining sex; not a sex chromosome.