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Chapter 5

Chapter 5. Review. The passing of traits from parents to offspring is called ______. heredity. The different forms of a trait that a gene may have are called _____. alleles. The stu dy of how traits are inherited is the science of _____. genetics.

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Chapter 5

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  1. Chapter 5 Review

  2. The passing of traits from parents to offspring is called ______.

  3. heredity

  4. The different forms of a trait that a gene may have are called _____.

  5. alleles

  6. The study of how traits are inherited is the science of _____.

  7. genetics

  8. In a Punnet square, the letters stand for ______. • A. dominant alleles • B. recessive alleles • C. both a and b • D. neither a nor b

  9. C

  10. The genetic makeup of an organism is called its _____.

  11. genotype

  12. The way an organism looks and behaves as a result of its genetic makeup is called its _____.

  13. phenotype

  14. In a Punnett square, a capital letter (T) stands for a _____ allele.

  15. dominant

  16. The combination Tt represents a _____ genotype. • A. heterozygous • B. homozygous • C. purebred • D. recessive

  17. A

  18. Experiments with four o’clock flowers produced examples of _____ dominance.

  19. incomplete

  20. Blood type is an example of ______. • A. multiple alleles • B. a pair of genes • C. polygenic inheritance • D. sex-linked genes

  21. A

  22. Color blindness is an example of _____. • A. a sex-linked disorder • B. incomplete dominance • C. a genetic disorder • D. polygenic inheritance

  23. A

  24. Genetic engineering has already helped people by _____. • A. altering pedigrees • B. curing Down’s syndrome • C. eliminating infant deaths • D. producing medicine

  25. D

  26. Through recombinant DNA, scientist have been able to _____. • A. cure color blindness • B. create new breeds of dogs • C. alter viruses • D. improve tomatoes

  27. D

  28. Who is known as the father of genetics?

  29. Gregor Mendel

  30. Organisms that receive different alleles from each parent are called _____.

  31. hybrids

  32. What term describes an organism with two alleles that are the same?

  33. homozygous

  34. What term describes an organism with two different alleles for a trait?

  35. heterozygous

  36. What term describes a group of gene pairs acting together to produce a trait?

  37. polygenic inheritance

  38. Errors occurring in the DNA when it is copied inside a cell are called _____.

  39. mutations

  40. The passing of traits from parents to offspring is called _____.

  41. heredity

  42. The different forms of a trait that a gene may have are called _____.

  43. alleles

  44. In a Punnett square, the letters stand for ______ and _____ alleles.

  45. dominant, recessive

  46. The genetic makeup of an organism is called its _____.

  47. genotype

  48. The way an organism looks and behaves as a result of its genetic makeup is called its _____.

  49. phenotype

  50. Vocabulary • passing of traits from one generation to another

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