What do gametes, spores, and the gametophyte
generation have in common?
a. They are all diploid.
b. They are all haploid.
c. They are present in vascular plants only.
d. They are all produced by meiosis.
e. They have none of these in common.
Answer: b
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The process of segregating the daughter chromosomes in Sulfolobus is more similar to the process in eukaryotic cells than in bacterial cells.
Answer the following statement true (T) or false (F)
All atoms tend to fill their outer energy levels with the maximum number of electrons, usually eight. Depending on whether atoms satisfy the octet rule will predict:
A. the chemical behavior of the atoms. B. whether they will be found in nature. C. whether they will dissolve in water. D. their radioactive energy.
A set of symptoms that characterize a disorder is referred to as
a. an abnormality. b. a disorder. c. a syndrome. d. lethality. e. a pedigree.
How do mitosis and meiosis differ from each other?
A) The goal of mitosis is to produce cells that are genetically identical to the original parent cell; the goal of meiosis is to produce cells that contain twice the number of chromosomes as the original parent cell. B) The cells formed by mitosis are diploid; the cells formed by meiosis are haploid. C) Mitosis results in the production of gametes; meiosis results in the production of cells, which are used for the organism's growth and replacement of damaged cells. D) Synapsis and crossing over occur in mitosis to ensure new combinations of genetic material; synapsis and crossing over do not occur in meiosis.