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Genetics Jeopardy

Genetics Jeopardy. xxx. xxx. xxx. xxx. xxx. 1. 1. 1. 1. 1. 2. 2. 2. 2. 2. 3. 3. 3. 3. 3. 4. 4. 4. 4. 4. 5. 5. 5. 5. 5. xxx for 1. Question : TRUE or FALSE : A gamete has one-half the number of chromosomes of a regular body cell. Check Your Answer.

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Genetics Jeopardy

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  1. Genetics Jeopardy

  2. xxx xxx xxx xxx xxx 1 1 1 1 1 2 2 2 2 2 3 3 3 3 3 4 4 4 4 4 5 5 5 5 5

  3. xxx for 1 Question: TRUE or FALSE: A gamete has one-half the number of chromosomes of a regular body cell. Check Your Answer

  4. xxx for 1 Answer: True Back to the Game Board

  5. xxx for 2 Question: TRUE or FALSE: During meiosis, chromosome number is reduced through three rounds of cell division. Check Your Answer

  6. xxx for 2 Answer: FALSE (two times) Back to the Game Board

  7. xxx for 3 Question: TRUE or FALSE: Mendel’s work on garden pea plants resulted in the discovery that genetic traits of parents always blend together in subsequent generations. Check Your Answer

  8. xxx for 3 Answer: FALSE (he discovered traits were dominant or recessive) Back to the Game Board

  9. xxx for 4 Question: TRUE or FALSE: Gregor Mendel’s research supports the idea each organism carries a pair of alleles. Check Your Answer

  10. xxx for 4 Answer: TRUE Back to the Game Board

  11. xxx for 5 Question: TRUE or FALSE: In humans, the ability to roll one’s tongue is a dominant trait. Therefore, a tongue roller can only have children who are also tongue rollers. Check Your Answer

  12. xxx for 5 Answer: FALSE (the person may be heterozygous and could have a child who could NOT roll the tongue. Back to the Game Board

  13. xxx for 1 Question: TRUE or FALSE: Meiosis occurs during both sexual reproduction and asexual reproduction. Check Your Answer

  14. xxx for 1 Answer: FALSE (sexual reproduction only) Back to the Game Board

  15. xxx for 2 Question: What fraction of this cross will be recessive for both traits? Check Your Answer

  16. xxx for 2 Answer: 1/16 Back to the Game Board

  17. xxx for 3 Question: During which phase of meiosis do homologous pairs of chromosomes line up next to one another along the equator? Check Your Answer

  18. xxx for 3 Answer: metaphase I Back to the Game Board

  19. xxx for 4 Question: A pure-bred tall (TT) pea plant is crossed with a pure-bred short (tt) pea plant, and all the offspring are tall. What is the most likely genotype of the offspring assuming a single-gene trait? Check Your Answer

  20. xxx for 4 Answer: Tt (heterozygous) Back to the Game Board

  21. xxx for 5 Question: In mice, black is dominant to white color and color is determined by a single gene. Two black mice are crossed. They produce 2 black offspring and one white offspring. If the white offspring is crossed with one of its parents, what percent of the offspring are expected to be white? Check Your Answer

  22. xxx for 5 Answer: 50% (both parents are Bb = heterozygous) Back to the Game Board

  23. xxx for 1 Question: Mendel crossed a true-breeding plant that produced green seeds with a true-breeding plant that produced yellow seeds to produce an F1 generation. The entire F1 generation produced yellow seeds. Then he crossed the F1 offspring with each other to produce the F2 generation. From the F2 generation, he counted 6022 yellow seeds. Which of these is the most likely estimate of the number of green seeds he collected from the F2 generation? Check Your Answer

  24. xxx for 1 Answer: approx. 2000 (F2 phenotype ratio is 3:1 so 6000 ÷ 3 = 2000) Back to the Game Board

  25. xxx for 2 Question: A heterozygous organism is best described as which of these? Check Your Answer

  26. xxx for 2 Answer: hybirds Back to the Game Board

  27. xxx for 3 Question:In which situation are the phenotypes of F2 offspring expected to follow the ratio of 9:3:3:1. A. a monohybrid cross for 2 unlinked traits B. a monohybrid cross for 2 closely linked traits C. a dihybrid cross for 2 unlinked traits D. a dihybrid cross for 2 closely linked traits Check Your Answer

  28. xxx for 3 Answer: C. a dihybrid cross for 2 unlinked traits Back to the Game Board

  29. xxx for 4 Question: If two heterozygous individuals are crossed, what percent of their offspring are also expected to be heterozygous? Check Your Answer

  30. xxx for 4 Answer: 50% (the genotype ratio is 1:2:1) 1 AA = 25%2 Aa = 50%3 aa = 25% Back to the Game Board

  31. xxx for 5 Question: Suppose an animal is heterozygous AaBb, and the traits are not linked. When meiosis occurs, what is the total number of possible combinations of gametes that can be made for these traits? Check Your Answer

  32. xxx for 5 Answer: 4 ABAbaBab Back to the Game Board

  33. xxx for 1 Question: The typical human body cell contains 46 chromosomes. How many chromosomes are found in a typical human sperm? Check Your Answer

  34. xxx for 1 Answer: 23 (sperm = gamete so it is haploid = half the normal) Back to the Game Board

  35. xxx for 2 Question: What is the role of the spindle fibers? A. to join homologous chromosomes together B. to store nucleotides prior to DNA synthesis C. to initiate the formation of the nuclear membrane D. to move chromosomes in the cell Check Your Answer

  36. xxx for 2 Answer: D. to move chromosomes in the cell Back to the Game Board

  37. xxx for 3 Question: In mink, brown fur color is dominant to silver-blue fur color. If a homozygous brown mink is mated with a silver-blue mink and 8 offspring are produced, how many would be expected to be silver-blue? Check Your Answer

  38. xxx for 3 Answer: Zero (all the offspring would be heterozygous) Back to the Game Board

  39. xxx for 4 Question: In chickens, rose comb (R) is dominant to single comb (r). A homozygous rose-combed rooster is mated with a single-combed hen. All of the chicks in the F1 generation were kept together as a group for several years. They were allowed to mate only within their own group. What is the expected phenotype of the F2 chicks? Check Your Answer

  40. xxx for 4 Answer: 75% rose comb and 25% single comb (3:1 phenotype ratio) Back to the Game Board

  41. xxx for 5 Question: A white mouse whose parents are both white produces only brown offspring when mated with a brown mouse. The white mouse is most probably ____. Check Your Answer

  42. xxx for 5 Answer: homozygous recessive Back to the Game Board

  43. xxx for 1 Question: Gregor Mendel is best known for his research on _______________ plants. Check Your Answer

  44. xxx for 1 Answer: pea Back to the Game Board

  45. xxx for 2 Question: Two genes are considered linked when they are located close to each other on the same ____________________. Check Your Answer

  46. xxx for 2 Answer: chromosome Back to the Game Board

  47. xxx for 3 Question: A geneticist refers to the appearance of an individual as his or her ____________________, while the genetic makeup is called the genotype. Check Your Answer

  48. xxx for 3 Answer: phenotype Back to the Game Board

  49. xxx for 4 Question: An individual with the genotype Aais ____________________ for the trait. Check Your Answer

  50. xxx for 4 Answer: heterozygous Back to the Game Board

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