1. ) In humans , height shows a lot of variation . It is an example of
Correct : C. polygenic inheritance
2. Meiosis produce 4 daughter cells but each daughter cell differ from one another because of
Correct : D. Both A & B
3. In T. H. Morgan"s Experiment on Drosophilia what will be the result when F1 female flies are crossed with double recessive male files ?
Correct : A. 83% parental combinations 17% Recombinations
4. which cross yielded a ratio of 7:1 :1:7 ?
Correct : C. Test cross (Dihybri
5. When there is no Possibility of independent assortment of genes during gametogenesis then What Will be the real ratio of F2 in dihybrd cross?
Correct : B. 11 : 1 : 1 : 3
6. What is incorrect statement Gynandromorphs ?
Correct : B. Individuals who show only female characters
7. What is Barr body ?
Correct : C. One less than the number of X - chromosomes
8. What is called Free martin ?
Correct : D. Sterile female born along with a fertile male
9. Out of the following , Find out the reason for occurrence of free martin in cattles ?
Correct : D. All of the above
10. In this group of plants male is heterogametic and female is homogametic type
Correct : D. angiosperms
11. Name the Plant possessing two X chromosomes
Correct : D. Both (A) & (B)
12. State the mutant gene Which converts the male flowers into female flowers In Maize plant
Correct : B. ta ta
13. By which gene sex is determind in Spinach ?
Correct : A. Single gene "m" located in the X- chromosome
14. Which factor in nature causes discontinuous Variation in a population ?
Correct : C. Mutation
15. This is reversal of mutation
Correct : C. Back mutation
16. Which condition among the following is lethal ?
Correct : A. (2n-2)
17. State the cause of Philadelphia syndrome
Correct : C. Deletion from the long arm of chromosome number 22
18. which statement is incorrect regarding gene mutation
Correct : A. Mutations may be gradual or they may not be induced.
19. What happens to excessive phenylalanine accumulation in the blood of phenylketonuria patient ?
Correct : B. excreted in urine
20. Name the enzyme needed for the following biochemical reaction Tyrosine enzyme Melanin
Correct : C. Tyrosine aminase
21. Which is very common method to study Human Karyotype ?
Correct : A. Blood culture method
22. Name the disorder caused by trisomy of sex chromosomes.
Correct : B. Kline felter’s syndrome
23. What will be expected blood groups in the off spring when there is a cross between AB blood group mother and heterozygous B blood group father ?
Correct : A. 25 % AB group 25 % A group 50 % B group
24. Which law of Mendel can be explained on chromosomal basis of inheritance ?
Correct : C. Law of independent assortment
25. Out of the marked portions X, Y and Z, in which region the male worm develop ?
Correct : C. Z
26. Which kind of structural abnormality is seen in the above chromosome?
Correct : B. Duplication (Tandem)
27. Name the abnormality seen in chromosome number - 2
Correct : A. Interstitial Deletion
28. What does the following pedigree chart represent ?
Correct : C. Pedigree of polydactylous in man
29. What kind of chromosomal aberrations is seen in the given diagram?
Correct : C. inversion
30. What kind of sex determination is seen in the given chart?
Correct : B. Sex determination in honey bee
31. What do A, B, C represent in the given diagram?
Correct : A. Centromere, chromatids chiasma
32. What does the diagram represent ?
Correct : B. crossing over, Diplotene
33. Whose karyotype is represented below ?
Correct : B. Male Drosophila
34. What does the above cross represent ?
Correct : B. Complete linkage
35. The genes Controlling the seven characters of a pea plant studied by Mendel are now known to be located on how many different chromosomes? AIPMT - 2003
Correct : D. Four
36. Which one of the following traits of garden pea studied by Mendel was a recessive feature? AIPMT - 2003
Correct : B. Green Seed colour
37. Down's Syndrome is caused by an extra copy of chromosome number 21. What percent age of off spring produced by an affected mother and a normal father? AIPMT - 2003
Correct : D. 25%
38. Lack of independent assortment of two genes A and B in fruitfly the Drosophilia is due to
Correct : C. Linkage
39. . A male human is heterozygous for autosomal genes A and B and is also hemizygous for haemophilic gene h. What proportion of his sperms will be abh? AIPMT - 2004
Correct : A. 1/8
40. . In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTt genotype is crossed with a plant that is rrtt. AIPMT - 2004
Correct : B. 50% will be tall with red fruit
41. A normal woman, whose father was colour blind is married with normal man. The sons would be AIPMT - 2004
Correct : A. 75% Colour blind
42. .The recessive genes located on X - chromosome of humans are alwaysAIPMT-2004
Correct : C. expressed in males
43. . Inorder to find out the different types of gametes produced by a pea plant having the genotype AaBb it should be crossed to a plant with the genotype AIPMT - 2004
Correct : C. aabb
44. . A woman with normal vision, but whose father was colourblind, marries a colourblind man. AIPMT - 2004 Suppose that the fourth child of this couple was a boy. This boy
Correct : A. May be colourblind or may be of normal vision
45. .Which of the following is not a hereditary disease? AIPMT - 2004
Correct : D. Cretinism
46. .Haemophilia is more commonly seen in human males than in human females because
Correct : C. this disease is due to an X - linked recessive mutation
47. .A woman with 47 chromosomes due to 3 copies of chromosome 21 is characterized by AIPMT - 2005
Correct : D. Down's Syndrome
48. . A man and a woman, who do not show any apparent signs of a certain inherited disease, have Seven Children (2 daughters and 5 sons). Three of the Sons suffer from the given disease but none of the daughters affected. Which of the following mode of inheritance do you suggest for this disease? AIPMT - 2005
Correct : B. Sex - linked recessive
49. .Which one of the following is an example of polygenic inheritance ? AIPMT - 2006
Correct : A. Skin colour in humans
50. .Phenotype of an organism is the result of AIPMT - 2006
Correct : A. genotype and environmental interactions
51. .How many different gametes will be produced by a plant having the genotype AABbCC? AIPMT - 2006
Correct : A. Two
52. .In Mendel's experiments with garden pea, round seed shape (RR) was dominant over wrinkledSeeds (rr), Yellow cotyledon (YY) was dominant over green cotyledon (yy). What are the expected Phenotypes in the F2 generation of the cross RRYY x rryy?
Correct : A. Round Seeds with yellow cotyledons, and wrinkled seeds with yellow cotyle dons
53. Test cross involves AIPMT - 2006
Correct : D. Crossing the F1 hybrid with a double recessive genotype
54. . If a colourblind woman marries a normal visioned man, their sons will be AIPMT - 2006
Correct : A. all colourblind
55. . In the hexaploid wheat, the haploid (n) and basic (X) numbers of chromosomes are AIPMT - 2007
Correct : C. n = 21 and X = 7
56. . Inheritance of skin colour in humans is an example of AIPMT - 2007
Correct : B. Polygenic inheritance
57. . In pea plants, yellow seeds are dominant to green, If a heterozygous yellow seeded plant isCorssed with a green seeded plants, what ratio of yellow and green seeded plants, would you expect in F1 generation? AIPMT - 2007
Correct : D. 50 : 50
58. .A human male produces sperms with the genotypes AB , Ab , aB , ab pertaining to two diallelic characters in equal proportions. What is the corresponding genotype of this person? AIPMT - 2007
Correct : D. AaBb
59. .Which one of the following conditions in human is correctly matched with its chromosomal abnormality / linkage ? AIPMT - 2008
Correct : C. Kline Felter's syndrome - 44 autosomes +XXY
60. .The most popularly known blood grouping is the ABO grouping. It is named ABO and not ABC, because "O" in it refers to having AIPMT - 2009
Correct : C. no antigens A and B on RBCs
61. . Sickle cell anemia is AIPMT - 2009
Correct : B. Caused by a change in a single base pair of DNA
62. .Which one of the following can not be explained on the basis of Mendel's law of dominance? AIPMT - 2009
Correct : C. Alleles do not show any blending and both the characters recover as such in F2 generation.
63. . The genotype of a plant showing the dominatnt phenotype can be determined by AIPMT - 2010
Correct : A. test cross
64. . Select the correct statement from the ones given below with respect to dihybrid cross.
Correct : D. Tightly linked genes on the samechromosome show very few recombinations
65. .ABO blood groups in humans are controlled by the gene I. It has three alleles - IA , IB and i . Since there are 3 different alleles six different genotypes are possible. How many phenotypesOccur? AIPMT - 2010
Correct : C. Four
66. Which one of the following symbols and its representation used in human pedigree analysis is correct? AIPMT - 2010
Correct : A. = Mating between relatives
67. Study the pedigree chart of a certain family given below and select the correct conclusion which can be drawn for the character
Correct : A. The female parent is heterozygous
68. Which one of the following conditions correctly describes the manner of determining the sex? AIPMT - 2011
Correct : B. XO type of sex chromosomes determine male sex in grasshopper
69. Mutations can be induced with AIPMT - 2011
Correct : D. gamma radiations
70. Test cross in plants or in Drosophilia involves crossing AIPMT - 2011
Correct : C. the F1 hybrid with a double recessive genotype
71. Which one of the following conditions of the Zygotic cell would lead to the birth of a normal human female child? AIPMT - 2011
Correct : A. Two X Chromosomes
72. F2 generation in a Mendelian cross showed that both genotypic and phenotypic ratios are same as 1 : 2 : 1 . It represents in case of AIPMT - 2012
Correct : D. Monohybrid cross with incomplete dominance
73. A normal - Visioned man whose father was colourblind, marries a woman whose father was also colourblind. They have their first child as a daughter. What are the chances that this child would be colourblind?
Correct : A. 100%
74. A test cross is carried out to AIPMT - 2012
Correct : A. determine the genotype of a plant at F1
75. Represented below is the inheritance pattern of a certain type of trait in humans. Which one of the following conditions could be an example of this pattern?
Correct : C. Haemophilia
76. A cross between AaBB X aaBB yields a genotypic ratio of AIPMT - 1990
Correct : A. 1 AaBB : 1 aaBB
77. Which of the following is non - heritable? AIPMT - 1995
Correct : A. Point mutation
78. Dihybrid cross proves the law of AIPMT - 1992
Correct : D. Independent assortment
79. In a dihybrid cross between AABB and aabb the ratio of AABB, AABb, aaBb, aabb in F2 generation is
Correct : C. 1: 2: 2: 1
80. The allele which is unable to express its effect in the presence of another is called AIPMT - 1991
Correct : D. Recessive
81. Which person is suffering from disease according to given sentences ?
Correct : D. All of them suffer from disease.
82. What is the location of Salmonella typhi during diseased condition ?
Correct : D. Intestine
83. Which test is carried out if disease is occured by salmonella typhi ?
Correct : A. Widal test
84. Generally streptococcus pneumoniae causes pneumonia but which bacteria is responsible for this diseare ?
Correct : C. Haemophilus influenzae
85. Chhaganbhai is suffering from fever, then which kind of organism responsible for it ?
Correct : C. Plasmodium falciparum
86. Duration of fever occured by plasmodium malarie is _______
Correct : D. Every 72 hours.
87. From which kind of host life cycle of plasmodium passes ?
Correct : D. Human & Male Anopheles mosquito.
88. What is responsible for malaria...?
Correct : D. Only female Anopheles mosquitoes
89. The spherical from of metacryptomezoites is called _____
Correct : C. Trophozoite
90. What is improper for ringworm disease.
Correct : D. It is done by secretion of serotonin chemical.
91. In figure what is indicated by "P" ?
Correct : C. Disuphlide bond
92. Give the name of scientist who are concern with interferon word.
Correct : D. Ellic isaks & jan lindenmen
93. At Which time interferon is secreted ?
Correct : D. When our body cell's are infected by virus then that cell's secret this chemical.
94. Which is the process of biological control,which is for controlling to spread the diseare caused by mosquitoes.?
Correct : C. Fish like Gambusia
95. Give the location of Ig-G ?
Correct : C. Blood
96. Give the correct sequence from pre erythrocytic cycle ?
Correct : A. Saliva - Sporozoites-Blood-liver-Cryptoschizont-Cryptomerozoites.
97. Give the correct Sequence for endo erythrocytic cycle ?
Correct : B. Metacry ptomerozoiter-in RBC-Trophozaite-Schizant-Merozoites-Gametocyte