Q1 Board spectrum antibiotics are?

A. Antibiotics having ability to act only on one or two types of pathogenic species covering a board area

B. Antibiotics which are active at microorganisms which live in higher in higher range spectrum

C. Antibiotics having ability to act only on several pathogenic species differing from each other in structure and composition of their cell wall

D. Antibiotics having ability to act ony on particular type of pathogenic species in huge quantity

Q2 Which one of the following is the correct statement? Cortical reaction of egg during fertilization is necessary to

A. Allow polyspermy and harden the egg membranes

B. Solitbilize the egg membranes

C. Inhibit polyspermy and harden the egg membranes

D. Inhibit polyspermy and solubilize the egg membranes

Q3 Vomiting occurs due to

A. Constipation

B. Diarrhoea

C. Antiperistalsis

D. Peristalsis

Q4 In the context of DNA cloning, consider the following: A. Bacteriophages B. Bacterial artificial chromosomes C. Yeast artificial chromosomes Which of the above is/are cloning vectors?

A. A,B and C

B. A and B

C. B and C

D. A Only

Q5 Who of the following is associated with the discovery of bacterial transformation?

A. Frederick Griffith

B. Thomas Hunt Morgan

C. Erwin Chargaff

D. Robert Koch

Q6 For every molecule of NADH2 that is oxidized via the electron transport system, what is the number of ATPs formed?

A. 5

B. 2

C. 3

D. 1

Q7 Which one of thHyperthyroidisme following causes tetany in young individuals?

A. Hypothyroidism

B. Hypoparathyroidism

C. Hyperthyroidism

D. Hyperparathyroidism

Q8 In plants, which are involved in testa formation

A. Tracheids

B. Sclereids

C. None of the options are correct

D. Sclerenchyma

Q9 Which structure is involve in gaseous exchange of plants?

A. Lenticels

B. Cuticle

C. All the option are correct

D. Stomata

Q10 What is the initiation codon in translation?

A. UAA

B. UGA

C. UAG

D. AUG

Q11 In the context of the evolution of man, who of the following left evidence of artistic ability in the form of drawings paintings on the walls of caves?

A. Cro-magnon man

B. Neanderthal man

C. Peking man

D. Java-ape man

Q12 What is the role of oxygen in cellular respiration?

A. It is utilized in the conversion step of AID to ATP

B. It combines with glucose and oxidises it

C. It clears lactic acid load

D. It is the final electron acceptor in the respiratory chain

Q13 Which of the following is the best evidence for the lock and key theory of enzyme action?

A. All isolated enzymes have been identified as protein

B. Compound similar in stucture to the substrate inhibit the reaction

C. Enzymes are found in living organisms and speed up certain reaction

D. Enzymes determine the direction of a reaction

Q14 In protein synthesis in E. coli. When each amino acid is attached to a specific to RNA at the expense of ATP energy, the ion of which one of the following elements is used?

A. Copper

B. Calcium

C. Magnesium

D. Zinc

Q15 In their experiment to prove that DNA is the, genetic material, which one of the following isotopes was used by Hershey and Chase to label bacteriophages?

A. 3H

B. 14C

C. 32p

D. 15N

Q16 Consider the following statements: A. Sus has deciduate placenta. B. Talpa has non-deciduate lacenta. Which of the statements given above is/are correct?

A. Both A and B

B. B Only

C. Neither A nor B

D. A Only

Q17 Down?s syndrome is caused by an extra

A. 11th Chromosome

B. 18th Chromosome

C. 21st Chromosome

D. 21nd Chromosome

Q18 Which of the following kinds of substances are present in the cell wall of bacteria?

A. D-Glucoronic acid and N-Acetylgalactosamine

B. Chitin and pectin

C. Amylopectin and cellulase

D. N-Acetylglucosamine and N-Acetylmuramic acid

Q19 Consider the following: A. Glycine B. Histamine C. Nitric oxide Which of the above is/are neurotransmitters?

A. B and C Only

B. A and B Only

C. A and C Only

D. A, B and C

Q20 In the context of comparative study of excretionary system of vertebrates, which one of the following is a special device for water conservation in mammals?

A. Collecting duct

B. Proximal convoluted tubule

C. Bowman?s capsule

D. Loop of Henle

MCQ Questions, ihkcl.in
MCQ Questions, ihkcl.in
MCQ Questions, ihkcl.in
MCQ Questions, ihkcl.in
MCQ Questions, ihkcl.in
MCQ Questions, ihkcl.in