NEET (Zoology MCQs)
Categories: MCQS
Q.1. In pBR322, selection of recombinants is a complex process due to inactivation of antibiotics because;
(1) Antibiotic-resistance genes have more than one recognition site of commonly used restriction enzymes.
(2) It requires simultaneous plating on two plates containing the same antibiotic.
(3) It requires simultaneous plating on two plates containing different antibiotics.
(4) We are unable to distinguish transformants from non-transformants.
Ans. (3) It requires simultaneous plating on two plates containing different antibiotics.
Q.2. H - region is present in;
(1) Only in I-band.
(2) Both in A-band and I-band.
(3) Light bands.
(4) Only A-band.
Ans. (4) Only A-band.
Q.3. Which of the following secretes interferon as a cytokine barrier?
(1) Virus-infected cells
(2) Uninfected cells
(3) Bacteria-infected cells
(4) Fungus-infected cells
Ans. (1) Virus-infected cells
Q.4. Select the incorrect option regarding human zygote
(1) Diploid in nature.
(2) Absence of zona pellucida around it.
(3) Unicellular structure.
(4) Bears either XX or XY sex chromosomes.
Ans. (2) Absence of zona pellucida around it.
Q.5. ________ is the cord that passes through the midbrain.
(1) Corpus callosum
(2) Cystic duct
(3) Cerebral aqueduct
(4) Cerebral quadrigemina
Ans. (3) Cerebral aqueduct
Q.6. Statement (A): Hepatitis-B vaccine is made from yeast.
Reason (R): Vaccines produced through recombinant DNA technology allow large-scale production and hence greater availability for vaccination.
(1) Both Statement (A) and Reason (R) are true, and Reason (R) is the correct explanation of Statement (A).
(2) Both Statement (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Statement (A).
(3) Statement (A) is true, and Reason (R) is false.
(4) Statement (A) is false, and Reason (R) is true.
Ans. (2) Both Statement (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Statement (A).
Q.7. Statement (A): Food is taken in by a bilobed tongue in frogs.
Reason (R): Partially digested food called chyme passes from the stomach to the first part of the large intestine, the duodenum in frogs.
(1) Both Statement (A) and Reason (R) are true, and Reason (R) is the correct explanation of Statement (A).
(2) Both Statement (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Statement (A).
(3) Statement (A) is true, and Reason (R) is false.
(4) Statement (A) is false, and Reason (R) is true.
Ans. (3) Statement (A) is true, and Reason (R) is false.
Q.8. Match List-I with List-II and choose the correct option.
|
List-I |
List-II |
|
(A) Culex |
(I) Presence of proboscis gland |
|
(B) Entedon |
(II) Belongs to largest phylum |
|
(C) Saccoglossus |
(III) Marine spiny bodied |
|
(D) Myxine |
(IV) Absence of paired fins |
A B C D
(1) II III I IV
(2) III II IV I
(3) IV II III I
(4) II I III IV
Ans. A B C D
(1) II III I IV
Q.9. How many of the given statements are correct?
- World population was about 2 billion in the year 1900.
- Indian population at the time of our independence was about 35 million.
- Population growth rate was more than 2 percent as per 2011 census report.
- Rapid increase in MMR and IMR is the possible reason for the huge increase in population.
(1) Three
(2) Four
(3) One
(4) Two
Ans. (3) One
Q.10. Statement (A): A protein structure cannot exist in the form of extended rigid rods.
Reason (R): The structure which represents the positional information of amino acids in a protein is called primary structure.
(1) Both Statement (A) and Reason (R) are true, and Reason (R) is the correct explanation of Statement (A).
(2) Both Statement (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Statement (A).
(3) Statement (A) is true, and Reason (R) is false.
(4) Statement (A) is false, and Reason (R) is true.
Ans. (2) Both Statement (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Statement (A).