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5 Written questions

5 Matching questions

  1. mono hybrid
  2. red green color blindness
  3. fossil record
  4. y chromosome
  5. phenotype
  1. a chronological collection of life's remains in sedimentary rock layers, soft tissue doesn't leave a fossil too often
  2. b cross with genes each offspring gets two packages one from each parent. , A hybrid produced by crossing parents that are homozygous except for a single gene that has two alleles (as in Mendel's experiments with garden peas)
  3. c the sex chromosome found only in males. When paired with an X chromosome from the mother, it produces a male child.
  4. d A class of common sex-linked human disorders involving several genes on the X chromosome; characterized by a malfunction of light-sensitive cells in the eyes; affects mostly males but also homozygous females
  5. e physical traits of the organism, what an organism looks like as a consequence of its genotype

5 Multiple choice questions

  1. began modern era of genetics came up with most of genetic terminology
  2. combined genetic information of all the members of a particular population
  3. paring of chromosomes and beginning of variety, the four chromatids in a pair of homologous chromosomes that come together as a result of synapsis during meiosis
  4. Genetic drift that occurs when a few individuals become isolated from a larger population, with the result that the new population's gene pool is not reflective of the original population.
  5. all the cells of your body except your sex cells

5 True/False questions

  1. post zygotic barriersreduced hybrid viability: offspring's development is impaired. reduced hybrid fertility: offspring is sterile. hybrid breakdown: 2nd generation hybrids are not viable and/or fertile


  2. directional selectionnatural selection that favors individuals with either extreme of a trait, form of natural selection in which a single curve splits into two; occurs when individuals at the upper and lower ends of a distribution curve have higher fitness than individuals near the middle


  3. prophasefirst and longest phase of mitosis, during which the chromosomes become visible and the centrioles separate and take up positions on the opposite sides of the nucleus, 1. chromosomes coil up to package them easier to move 2. spindlefibers appear 3. the nucleus disappears


  4. allelesthe alternate form of a gene


  5. sexual reproductionthe principle that, among the range of inherited trait variations, those that lead to increased reproduction and survival will most likely be passed on to succeeding generations