LMS

1 How many pairs of homologous chromosomes are present are present in Pisum sativum? 

2 A certain type of plant is only tall when it has a heterozygous genotype. If two heterozygous plants are crossed, what is the probability of their offspring will also be tall? 

3 A pure breeding tall pea plant was crossed to dwarf plant. What will be the frequency of dwarf plants in F2? 

4 Phenotypic ratio of F2 generation of monohybrid cross: 

5 What is the phenotypic ratio for a cross between a plant with blue flowers BB and a plant with white flowers bb? 

6 Composite of an organism's observable characters or traits is called:

7 In a dihybrid cross, what fraction of offspring will be homozygous for both traits?

8 Genotype ratio of Mendel's law of independent assortment is which of the following?

9 Your neighbour has a flower garden in which there are red flowers and white flowers. These flowers are diploid organisms, and flower colour is an autosomal trait. The gene for red flowers (R) is dominant, while the gene for white flowers (r) is recessive. Which of the following is the genotype of a white flower? 

10 Which of the following is heterozygote? 

11 Which of the following represents a phenotype? 

12 Homozygous chromosomes include which of the following? 

13 One plant is homozygous dominant for purple flowers, and the other is homozygous recessive for white flowers. What fraction of the F2 population will have white flowers? 

14 A monohybrid cross yielded 3:1 in F2. What could be mode of inheritance?

15 In peas, the gene for yellow color (C) is dominant to the gene for green color (c). To determine the genotype of an unknown pea, what kind of kind of pea should you cross with it? 

16 Your neighbor has a flower garden in which there are red flowers and white flowers. These flowers are diploid organisms, and flower color is an autosomal trait. The gene for red flowers(R) is dominant, while the gene for white flowers(r) is recessive. Which of the following could be the genotype of a red flower? 

17 A scientist has discovered a new species of flower in which purple coloration is dominant to white. He wishes to know the genotype of a specific purple flower. Which of the following crosses would give him a definitive answer for the purple flower genotype? 

18 In nature, garden pea is which of the following? 

19 Which of the following characters of pea plant is dominant? 

20 Which of the following is monohybrid cross? 

21 During test cross, if all off springs are phenotypically dominant then parents are?

22 A pure breeding tall plant was crossed with dwarf plant. What would be probability of “Tt” genotype in F2? 

23 Round shaped pea seed is crossed with wrinkled shaped seed. This refers to:

24 Number of gametes produced by an organism having genotype of RrPp:

25 What would be the color of flowers in F1 generation when a 4’O clock plant having red colored flower is crossed with plant having white colored flower: 

26 Mendel’s law of inheritance were presented in: 

27 Mendel studied seven pairs of traits of pea plant that were present on chromosomes. 

28 True breeding variety is produced by which of the following? 

29 A pea plant with yellow seed was crossed to a plant having green seeds. What will happen in F1 if plants are true breeding? 

30 How many gametes are produced from genes of diploid organism which is heterozygous for 4 loci? 

31 Mendel laid the foundation of: 

32 ABO system has different phenotype on the basis of specific on the surface of RBCs 

33 ABO blood group system was discovered in: 

34 A man with type A blood and a woman with type AB+ blood have a child. Which blood type is impossible for that child to have? 

35 ABO blood group system was first introduced by: 

36 ABO has how many phenotypes? 

37 A man with type AB blood marries a woman with type A blood. Which of the following blood types might their sons inherit? 

38 Assume that blood type is not a sex-linked trait. A mother with genotype “A/O” and a father with genotype “A/B” could not have a child with which blood type?

39 Assuming that blood type is not a sex-linked trait, what is the probability that a mother with genotype “A/O” and a father with genotype “A/B” will have a child with type B blood? 

40 A man with blood group A marries a woman of blood group “B”. Both are heterozygous. What is the offspring’s having phenotype” O” 

41 Rh blood group system is: 

42 If father have blood group A and mother have blood group B then children can have:

43 The number of linkage groups in humans is? 

44 Genes of same chromosomes are: 

45 Crossing over brings about: 

46 In Morgan’s experiment when males and females of Fl generation mate with each other and produce F2 generation. The number of red eyed males were:

47 Colored eyes in male Drosophila is due to: 

48 A trait determines by a gene on the X chromosome is said to be:

49 Haemophilia B is due to abnormality of factor? 

50 Which of the following is not sex linked recessive trait? 

51 When a hemophilia carrier woman marries a normal man, who among her offspring may be affected? 

52 Which traits cannot pass from father to all of his sons? 

53 It is a autosomal recessive allele: 

54 Hemophilia is: 

55 Traits passed form maternal grandfather to grandson: 

56 Which of the following is inherited via an autosomal recessive allele?

57 For a single gene trait, a number of genetic disorders are caused when an individual inherits? 

58 Which trait is passed directly from father to son? 

59 Chances for a birth of male and female in humans: 

60 A gamete without sex gamete is called: 

61 Genes of baldness can express only in the presence of hormone:

62 Defective genes are present on X chromosome. It will normally be transmitted in male off springs by: 

63 A single ovum of human being contains: 

64 How many sex chromosomes are present in human? 

65 Which of the following is male determining gene in humans?

66 Number of chromosomes in grass hopper is: 

67 Male is haploid in: 

68 ZZ/ZW type of sex determination is found in: 

69 Number of autosomes in liver cells of humans: 

70 In males, the gene for colour blindness is located in .

71 Which of the following is called the sex-linked disease? 

72 How many sex chromosomes are present in a human being? 

73 Skin colour in man is controlled by how many pairs of genes: 

74 Inheritance in man is traced by which of the following? 

75 In which organisms males are haploid? 

76 Visible genetic traits include which of the following? 

77 All of the following are continuously varying traits except: 

78 Gene for blue opsin is present on which chromosome? 

79 A woman is a carrier for a sex-linked disorder. She marries a man whose father had the disorder, and whose mother did not. The man is unaffected. If they have a child, what is the probability that the child is also a carrier? 

80 Red-green colorblindness is an X-linked recessive disorder. Jacob's paternal grandfather and father are both colorblind, but his mother has two normal alleles. What is the probability that Jacob is red-green colorblind? 

81 Bombay phenotype shows: 

82 In males, gene for color blindness is present on: 

83 The phenomenon in which the effect of one allele in heterozygous genotype completely masks the effect of other is called: 

84 Inbreeding increases: 

85 Interaction between genes occupying different loci is known as?

86 Baldness is most frequent in which of the following? 

87 Such inheritance in which traits vary quantitatively is: 

88 If a heterozygous individual shows the complete effect of both alleles, the type of inheritance would be? 

89 A human cell from the ovary has 22 chromosomes and an X chromosome. It is which of the following? 

90 The ordered list of loci known for a particular genome is called:

91 Characteristics feature of male Drosophila is: 

92 Mutations in the sequence of genes are carried by only: 

93 Most protein coding genes are found in: 

94 A woman receives his X chromosome from: 

95 If replication was completely conservative then? 

96 All of the following are continuously varying traits except? 

97 Mating between relatives is called which of the following? 

98 Mating with non-relatives is known as? 

99 The gene for muscular dystrophy is X-linked. A female carrier and an unaffected male have one daughter together that is homozygous. The daughter has a son with unaffected male. What is the probability that the son will not be affected?

100 Gametes consist of:

101 A male and female have 6 daughters. Chances of next daughter will be:

102 Egg is determinant of offspring’s gender in: 

103 If both the alleles are same with respect to genes then they are called:

104 The process of determining the locus for particular biological traits includes:

105 The set of all genes in any population is termed as: 

106 A fully expressed allele is referred to as: 

107 A group of interbreeding individuals belonging to a particular species and sharing a common geographic area is called: 

108 Filial is a Latin word. It means which of the following? 

109 Pink color in flower is: 

110 Alternative form of a gene is called: 

111 The position of a gene on chromosome is called: 

112 The gene which cannot be determined by observing the organism is?

113 Which term means “same alleles”? 

114 Chromosomes that have different alleles of a given gene at locus is called:

115 To form a female zygote, the sperm cell must contribute which chromosome?

116 Gene is the molecular unit of which of the following? 

117 Organisms that have one copy of each gene on each chromosome are:

118 Population genetics focus on: