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Review.   The passing of traits from parents to offspring is called ______.

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Presentation on theme: "Review.   The passing of traits from parents to offspring is called ______."— Presentation transcript:

1 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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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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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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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   passing of traits from one generation to another Vocabulary

51   heredity

52   inserting DNA into bacteria

53   recombinant DNA

54   study of inheritance

55   genetics

56   an allele inherited on a sex chromosome

57   sex-linked gene

58   a trait that is hidden

59   recessive

60   the chance that an event will take place

61   probability

62   genetic makeup of an organism

63   genotype

64   a normal allele is placed into a virus

65   gene therapy

66   physical appearance resulting from genotype

67   phenotype

68   both alleles are express in offspring

69   incomplete dominance

70   more than one set of genes controls a trait

71   polygenic inheritance

72   Genetic engineering is the practice of changing the arrangement of DNA through biological and chemical methods. True/False

73   True

74   In gene therapy a normal allele is placed in a virus, which delivers the allele when it infects its target cell.

75   True

76   An allele inherited on a sex chromosome is called a sex-linked disorder.

77   False, sex- linked gene

78   Environmental influences cannot have an impact on phenotype.

79   False, can

80   Environmental influences can be internal or external.

81   True

82   Gregor Mendel was the first experimenter to trace one trait through several generations.

83   True

84   Mendel called plants that had received different alleles for a trait from each parent genes.

85   False, hybrids

86   A given allele’s effect is dominant or recessive.

87   True

88   An organism with two alleles that are the same is called heterozygous.

89   False, homozygous Multiple Answers

90   An organism that has two different alleles for a trait is called homozygous.

91   False, heterozygous

92   A trait produced by a combination of many genes is called polygenic.

93   True

94   Create a Punnet Square where the father is homozygous dominate for cleft chin and mother is homozygous recessive for no cleft chin. Multi point question

95   What are the genotypes and phenotypes for their offspring?

96   Create a Punnet Square where the father is heterozygous for dominate dimples and the mother is heterozygous for dominate dimples.

97   What are the genotypes and phenotypes for their offspring?


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