61. Sweet potato and potato represent a certain type of evolution. Select the correct combination of terms to explain the evolution.
(1) Analogy, convergent
(2) Homology, divergent
(3) Homology, convergent
(4) Analogy, divergent
62. With the help of given pedigree, find out the probability for the birth of a child having no disease and being a carrier (has the disease mutation in one allele of the gene) in F3 generation.
(1) 1/4 (2) 1/2 (3) 1/8 (4) Zero
63. Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Cells of the tapetum possess dense cytoplasm and generally have more than one
nucleus.
Reason (R): Presence of more than one nucleus in the tapetum increases the efficiency of nourishing
the developing microspore mother cells.
In the light of the above statements, choose the most appropriate answer from the options given below:
(1) Both A and R are true and R is the correct explanation of A
(2) Both A and R are true but R is not the correctexplanation of A
(3) A is true but R is false
(4) A is false but R is true
64. How many meiotic and mitotic divisions need to occur for the development of a mature female
gametophyte from the megaspore mother cell in an angiosperm plant?
(1) 2 Meiosis and 3 Mitosis
(2) 1 Meiosis and 2 Mitosis
(3) 1 Meiosis and 3 Mitosis
(4) No Meiosis and 2 Mitosis
65. Which of the following is an example of a zygomorphic flower?
(1) Petunia
(2) Datura
(3) Pea
(4) Chilli
66. After maturation, in primary lymphoid organs, the lymphocytes migrate for interaction with antigens to secondary lymphoid organ(s)/tissue(s) like:
A. thymus
B. bone marrow
C. spleen
D. lymph nodes
E. Peyer's patches
Choose the correct answer from the options given below:
(1) B, C, D only
(2) A, B, C only
(3) E, A, B only
(4) C, D, E only
67. Given below are two statements:
Statement I: Fig fruit is a non-vegetarian fruit as it has enclosed fig wasps in it.
Statement II: Fig wasp and fig tree exhibit mutual relationship as fig wasp completes its life cycle in
fig fruit and fig fruit gets pollinated by fig wasp.
In the light of the above statements, choose the most appropriate answer from the options given below:
(1) Both statement I and statement II are correct
(2) Both statement I and statement II are incorrect
(3) Statement I is correct but statement II is incorrect
(4) Statement I is incorrect but statement II is correct
68. What is the main function of the spindle fibers during mitosis?
(1) To separate the chromosomes
(2) To synthesize new DNA
(3) To repair damaged DNA
(4) To regulate cell growth
69. Which one of the following is the characteristic feature of gymnosperms?
(1) Seeds are enclosed in fruits.
(2) Seeds are naked.
(3) Seeds are absent.
(4) Gymnosperms have flowers for reproduction.
70. Consider the following statements regarding function of adrenal medullary hormones:
A. It causes pupilary constriction
B. It is a hyperglycemic hormone
C. It causes piloerection
D. It increases/strength of heart contraction
Choose the correct answer from the options given below:
(1) C and D Only
(2) B, C and D Only
(3) A, C and D Only
(4) D Only
71. Why can’t insulin be given orally to diabetic patients?
(1) Human body will elicit strong immune response
(2) It will be digested in Gastro-Intestinal (GI) tract
(3) Because of structural variation
(4) Its bioavailability will be increased
72. Match List-I with List-II.
List-I List-II
A. Pteridophyte I. Salvia
B. Bryophyte II. Ginkgo
C. Angiosperm III. Polytrichum
D. Gymnosperm IV. Salvinia
Choose the option with all correct matches.
(1) A-III, B-IV, C-II, D-I
(2) A-IV, B-III, C-I, D-II
(3) A-III, B-IV, C-I, D-II
(4) A-IV, B-III, C-II, D-I
73. Who proposed that the genetic code for amino acids should be made up of three nucleotides?
(1) George Gamow
(2) Francis Crick
(3) Jacque Monod
(4) Franklin Stahl
74. Match List-I with List-II.
List-I List-II
A. The Evil Quartet I. Cryopreservation
B. Ex situ conservation II. Alien species invasion
C. Lantana camara III. Causes of biodiversity losses
D. Dodo IV. Extinction
Choose the option with all correct matches.
(1) A-III, B-II, C-I, D-IV
(2) A-III, B-I, C-II, D-IV
(3) A-III, B-IV, C-II, D-I
(4) A-III, B-II, C-IV, D-I
75. Which of the following hormones released from the pituitary is actually synthesized in the
hypothalamus?
(1) Luteinizing hormone (LH)
(2) Anti-diuretic hormone (ADH)
(3) Follicle-stimulating hormone (FSH)
(4) Adenocorticotrophic hormone (ACTH)
76. Role of the water vascular system in Echinoderms is:
A. Respiration and Locomotion
B. Excretion and Locomotion
C. Capture and transport of food
D. Digestion and Respiration
E. Digestion and Excretion
Choose the correct answer from the options given below:
(1) A and B Only
(2) A and C Only
(3) B and C Only
(4) B, D and E Only
77. Which of the following type of immunity is present at the time of birth and is a non-specific type of defence in the human body?
(1) Acquired Immunity
(2) Innate Immunity
(3) Cell-mediated Immunity
(4) Humoral Immunity
78. In bryophytes, the gemmae help in which one of the following?
(1) Sexual reproduction
(2) Asexual reproduction
(3) Nutrient absorption
(4) Gaseous exchange
79. In frog, the Renal portal system is a special venous connection that acts to link :
(1) Liver and intestine
(2) Liver and kidney
(3) Kidney and intestine
(4) Kidney and lower part of body
80. Given below are two statements:
Statement I: In ecosystem, there is unidirectional flow of energy of sun from producers to consumers.
Statement II: Ecosystems are exempted from 2nd law of thermodynamics.
In the light of the above statements, choose the most appropriate answer from the options given below:
(1) Both Statement I and Statement II are correct
(2) Both Statement I and Statement II are incorrect
(3) Statement I is correct but Statement II is incorrect
(4) Statement I is incorrect but Statement II is correct
Answers:
61.(1) Analogy, convergent
62. (1) 1/4
63.(3) A is true but R is false
64.(3) 1 Meiosis and 3 Mitosis
65. (3) Pea
66.(4) C, D, E only
67. (2) Both statement I and statement II are incorrect
68. (1) To separate the chromosomes
69.(2) Seeds are naked.
70. (2) B, C and D Only
71.(2) It will be digested in Gastro-Intestinal (GI) tract
72.(2) A-IV, B-III, C-I, D-II
73.(1) George Gamow
74.(2) A-III, B-I, C-II, D-IV
75.(2) Anti-diuretic hormone (ADH)
76.(2) A and C Only
77.(2) Innate Immunity
78.(2) Asexual reproduction
79.(4) Kidney and lower part of body
80.(3) Statement I is correct but Statement II is incorrect