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.
B
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A large molecule whose subunits consist of a sugar, a phosphate group, and a nitrogen-containing base
is a
a. nucleic acid. b. amino acid polymer. c. storage carbohydrate. d. phospholipid. e. high-density lipoprotein.
Each of the following is part of the endomembrane system, except
A) Golgi complex. B) endosomes. C) lysosomes. D) peroxisomes. E) zymogen granules.
What is the color of light that chlorophylls absorb that has the highest energy?
A. green B. red C. yellow-orange D. violet-blue
A 25- year-old female is in kidney failure and needs a transplant. She is A positive and HLA A1A3/B5B7/C2C9/DR4DR8. Which of the following donors would be the best match?
A) her brother, who is B positive and HLA A1A3/B7B5/C2C9/DR8DR4 B) her sister, who is A positive and HLA A3A4/B7B9/C2C3/DR4DR7 C) her mother, who is AB positive and HLA A1A4/B9B5/C9C3/DR8DR7 D) an unrelated donor who is A positive and HLA A6A3/B5B7/C3C10/DR2DR9