Quiz 6B KEY 06

Quiz 6B KEY 06 - a. homozygous dominant b. homozygous...

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BTNY 210, S2006 Name:___________________________ Lab day and time__________________ Quiz #6B March 20, 2006 1. Name one tissue where meiosis occurs. Anther or Ovule 2. True or False . The product of meiosis is four cells, each of which has one fourth the original number of chromosomes. 3. True or False. In meiosis I each pair of homologs lines up on the metaphase plane and then separates from each other so that each of the two daughter cells gets one of each pair. 4. Humans have 23 pairs of homologs. What is the number of possible combinations of those homologs separating randomly during meiosis? a. 46 b. 460 c. 4,600 d. 46,000 e. more than 46,000 5. When the genotype of an individual is Rr, we say the organism is:
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Unformatted text preview: a. homozygous dominant b. homozygous recessive c. heterozygous d. all of the above e. none of the above 6. If tall is dominant over dwarf plant height, and we cross a homozygous tall plant with a homozygous dwarf plant, the genotypes of the parents are : TT x tt 7. The genotype of the F 1 generation from the cross in question 6 is: Tt 8. If the F 1 plant is self fertilized, what is the estimated ratio of tall to dwarf plants in the F 2 generation. 3 tall: 1 dwarf or (3:1) 9. What is the position of a gene on a chromosome called? Locus 10. True or False. When considering two traits in a genetic cross we call this a dihybrid cross....
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