CUSAT CAT 2018 Question Paper Biotechnology

Subject Code : 601 Section Code : -Select- Difficulty: 1

Subject Q Answer
Questions
Code Id Key

Which one of the following pigments does not occur in the chloroplast?

(A) Carotene

601 751 (B) Xanthophyll (D)

(C) Chlorophyll b

(D) Anthocyanin

Total number of chromosomes in human cell is

(A) 46

601 752 (B) 48 (C)

(C) 44

(D) 42

Plants which are not differentiated into roots, stem and leaves are grouped under

(A) Gymnosperms

601 753 (B) Pteridophytes (D)

(C) Spermatophytes

(D) Thallophytes

Iodine is obtained from one of the following plants

(A) Ulothrix

601 754 (B) Ectocarpus (C)

(C) Laminaria

(D) Oedogonium

Which one among the following is the most advanced group of algae?

(A) Rhodophyta

601 755 (B) Cyanophyta (A)

(C) Phaeophyta

(D) Chlorophyta

Kelps is obtained from

(A) Marine algae

601 756 (B) Fresh water algae (A)

(C) Hot spring algae

(D) Lichens

601 757 Vascular cambium is an example of (C)

(A) secondary meristem

(B) intercalary meristem

(C) lateral meristem

(D) primary meristem

Increase in girth in woody plants is due to the activity of

(A) Cork cambium

601 758 (B) Procambium (A)

(C) Fascicular cambium

(D) All of the above

Fusion of male gamete with polar nuclei of embryosac is known as

(A) pollination

601 759 (B) embrogeny (C)

(C) triple fusion

(D) double fertilization

The egg apparatus of angiosperm comprises of

(A) an egg cell and two antipodals

601 760 (B) an egg cell and the central cell (D)

(C) an egg cell and the two polar nuclei

(D) an egg cell and two synergids

Endosperm is formed during the double-fertilization by the fusion of

(A) one polar nucleus and one male gamete

601 761 (B) two polar nuclei and one male gamete (B)

(C) two polar nuclei and two male gamete

(D) ovum and male gamete

The rooting in stem cutting is stimulated by

(A) Jasmonic acid

601 762 (B) ABA (D)

(C) Ethylene

(D) IAA

Who discovered the nucleus?

(A) Henry Dutrochet

601 763 (B) Theodor Schwann (C)

(C) Robert Brown

(D) Robert Hooke

Phloem of gymnosperms is devoid of

(A) Sieve tubes

601 764 (B) Companion cells (B)

(C) Phloem parenchyma

(D) None of the above

601 765 The plant that absorbs moisture directly from the atmosphere is (A)

(A) Vanda

(B) Nepanthes

(C) Pandanus

(D) Eupatorium

The pigment which imparts yellow colour to turmeric is

(A) Xanthophyll

601 766 (B) Curcumin (B)

(C) Anthocyanin

(D) Haemoglobin

Which one of the following is responsible for converting milk into curd?

(A) Bacillus sp.

601 767 (B) Lactobacillus sp. (B)

(C) Psudomonas sp.

(D) Clostridium sp.

Foot and mouth disease is found in

(A) Cats and dogs

601 768 (B) Cattle (B)

(C) Poultry

(D) Humans

Among the following elements, which one is essential for the transmission of impulses in the nerve fibre?

(A) Calcium

601 769 (B) Iron (A)

(C) Sodium

(D) Zinc

Medulla oblongata is called as

(A) Piameter

601 770 (B) Durameter (C)

(C) Vital knot

(D) Pons verolii

The area of the human tongue sensitive to bitterness is restricted to

(A) Tip

601 771 (B) Edges (D)

(C) Middle part

(D) Posterior part

601 772 Which one among the following is compulsory for blood coagulation? (C)

(A) Platelets

(B) Lymphocytes

(C) RBC

(D) WBC

Vector of filariasis is

(A) Anopheles sp

601 773 (B) Culex sp (B)

(C) Tse-tse fly

(D) Mites

A cell increases in volume when it is placed in the

(A) hypotonic solution

601 774 (B) isotonic solution (A)

(C) hypertonic solution

(D) None of the above

Edward Jenner is associated with

(A) small pox

601 775 (B) Rabies (A)

(C) cholera

(D) typhoid

Which among the following helps in circulation of blood?

(A) Lymphocytes

601 776 (B) Monocytes (A)

(C) Erythrocytes

(D) Blood platelets

Which acid is present in lemon?

(A) Malic acid

601 777 (B) Citric acid (B)

(C) Lactic acid

(D) Tartaric acid

The term PVC used in the plastic industry stands for

(A) Polyvinyl chloride

601 778 (B) Polyvinyl carbonate (A)

(C) Phosphor vanadium chloride

(D) Phosphavinyl chloride

Which among the following salts is used to produce artificial rain?

(A) Copper oxide

601 779 (B) Carbon monoxide (C)

(C) Silver iodide

(D) Silver nitrate

601 780 Bleaching action of chlorine is by (A)

(A) Decomposition

(B) Hydrolysis

(C) Reduction

(D) Oxidation

A mixture of potassium nitrate, powdered charcoal and Sulphur is called

(A) Paint

601 781 (B) Aluminium (D)

(C) Brass

(D) Gun powder

Natural rubber is a polymer of

(A) Ethylene

601 782 (B) Propylene (C)

(C) Isoprene

(D) Butadiene

The atomic theory was first proposed by

(A) John Dalton

601 783 (B) E.Rutherford (A)

(C) De Broglie

(D) D.I. Mendeleef

One among the following gases is readily soluble in water at room temperature

(A) Chlorine

601 784 (B) Nitrogen (C)

(C) Ammonia

(D) Carbon dioxide

Atomic number is equal to

(A) Number of electrons

601 785 (B) Number of neutrons (C)

(C) Number of positrons

(D) Total number of protons and neutrons

One among the following chemicals is produced during the formation of photochemical smog

(A) Nitrogen oxides

601 786 (B) Hydrocarbons (D)

(C) Methane

(D) Ozone

601 787 What is ‘laughing gas’? (A)

(A) Nitrous oxide

(B) Nitric oxide

(C) Nitrogen oxide

(D) Nitrogen peroxide

The acid generally used in batteries is

(A) Nitric acid

601 788 (B) Hydrochloric acid (C)

(C) Sulphuric acid

(D) Acetic acid

Which of the following elements behave chemically both as a metal and a non-metal?

(A) Boron

601 789 (B) Carbon (A)

(C) Argon

(D) Mercury

Which gas is filled in refrigerators?

(A) Chlorofluorocarbon

601 790 (B) Acetylene (A)

(C) Methane

(D) Butane

The aqueous solution of which acid is called ‘Vinegar’?

(A) Acetic acid

601 791 (B) Hydrochloric acid (A)

(C) Citric acid

(D) Oxalic acid

Which gas is used for artificial fruit ripening of green fruits?

(A) Ethylene

601 792 (B) Acetylene (A)

(C) Ethane

(D) Methane

Maximum iron ore is found in which of the following state?

(A) FeCO3

601 793 (B) Fe2O3 (B)

(C) Fe3O4

(D) FeS2

601 794 The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is (C)

(A) Dalton's law

(B) Gay Lussac's law

(C) Henry's law

(D) Raoult's law

The highest temperature at which vapour pressure of a liquid can be measured is

(A) the boiling point of the liquid

601 795 (B) critical solution temperature (A)

(C) ionisation temperature

(D) inversion temperature

Which of the following gas is chiefly present in liquefied petroleum gas (LPG)?

(A) Butane

601 796 (B) Propane (A)

(C) Ethane

(D) Methane

Solid Carbon dioxide (Dry ice) is also known as

(A) Thiokol

601 797 (B) Mannitol (D)

(C) Perhydrol

(D) Drikold

Virus mediated transfer of genetic material from one bacterial cell to another is called as

(A) induction

601 798 (B) transfection (C)

(C) transduction

(D) transformation

Which one of the following is not used for the estimation of protein?

(A) Lowry et al method

601 799 (B) Bradford’s method (D)

(C) Biuret method

(D) DNSA method

The antibody that is initially detected in the serum immediate after infection is

(A) IgG

601 800 (B) IgM (B)

(C) IgD

(D) IgA

Cerebral malaria is caused by

(A) Plasmodium vivax

601 801 (B) P. ovale� (C)

(C) P. falciparum�

(D) P. malariae

601 802 Given that a bacterium has the generation time of 0.5 h, starting with an initial inoculum of 2 x 105, the bacterial (B)
count after 3 h of culture will be

(A) 3.2 � 106

(B) 6.4 � 106

(C) 12.8 � 106

(D) 12.8 � 107

The non-protein part of an enzyme is known as

(A) Holoenzyme

601 803 (B) Vitamin (D)

(C) Apoenzyme

(D) Prosthetic group

Asthma occurs due to the

(A) elasticity of lungs is reduced

601 804 (B) degradation of alveolar wall (C)

(C) bronchioles constrict due to muscle spasms

(D) damage in diaphragm

Immunodiagnostic tests for the detection of Influenza infection are based on the

(A) Haemaglutination

601 805 (B) Agglutination (C)

(C) Haemagglutination inhibition

(D) Precipitation

The boiling point of water inside a pressure cooker is

(A) below 100ᵒC

601 806 (B) 100ᵒC (D)

(C) 115ᵒC

(D) above 100ᵒC

In which of the following processes, the rate of transfer of heat is maximal?

(A) Conduction

601 807 (B) Convection (C)

(C) Radiation

(D) Reflection

A blood group that has both A and B antigens but no antibody is

(A) A

601 808 (B) O (C)

(C) AB

(D) B

601 809 Which one of the following diseases is ‘hereditary’ in nature? (A)

(A) Thalassemia

(B) Pernicious anemia

(C) Megalobalsticanemia

(D) Galactosemia

The diameter of a lens is called

(A) Focal length

601 810 (B) Principal axis (C)

(C) Aperture

(D) Both focal length and aperture

The enzymes that catalyze the reactions of the Krebs cycle are found in which subcellular organelle of
eukaryotes?

(A) Endoplasmic reticulum
601 811 (D)
(B) Lysosome

(C) Ribosome

(D) Mitochondrion

The stain that is used for staining chromosome is

(A) Acetocarmine

601 812 (B) Methylene blue (A)

(C) Methyl green

(D) Haemotoxylin

Which one of the following bacteria is used for the production of transgenic plants?

(A) Escherichia coli

601 813 (B) Bacillus thuringiensis (D)

(C) Staphylococcus aureus

(D) Agrobacterium tumefaciens

Embryonic stem cells are

(A) Totipotent

601 814 (B) Pluripotent (B)

(C) Differentiated

(D) Unipotent

The pituitary gland’s posterior lobe produces

(A) Vasopressin and Oxytosin

601 815 (B) Cortisone and Corticosterone (A)

(C) Progesterone and Estradiol

(D) Testosterone and Andosterone

The main constituent of plasma proteins is

(A) Heparin

601 816 (B) Fibrinogen (C)

(C) Globulin

(D) Albumin

601 817 The cervical cancer is caused by (A)

(A) Papilloma virus

(B) Herpes simplex virus

(C) Hepatitis B virus

(D) Vesicular stomatitis virus

What is not a weak interaction?

(A) Van der Waals force

601 818 (B) Covalent Bond (B)

(C) Hydrogen bonds

(D) Ionic interaction

In eukaryotes, tRNA is synthesized by

(A) RNA Pol I

601 819 (B) RNA Pol II (C)

(C) RNA Pol III

(D) MMLV RT

Penicillin inhibits the bacterial multiplication at the level

(A) replication

601 820 (B) protein synthesis (C)

(C) cell wall formation

(D) RNA synthesis

Which one of the following statements best describes the function of the sigma subunit in the RNA Polymerase
of E. coli?

(A) It is essential for elongation of the RNA transcript
601 821 (B)
(B) It is essential for the recognition of and binding to the promoter sequence

(C) It increases RNA polymerase binding to any DNA template

(D) It keeps the core complex from dissociating

Fleshy fruits with stony endocarp are called

(A) Berries

601 822 (B) Pomes (C)

(C) Drupes

(D) Capsules

Which one of the following enzyme is used to clear blood clots that occur during myocardial infarction?

(A) Glucokinase

601 823 (B) Streptokinase (B)

(C) Aexokinase

(D) Protein Kinase

601 824 A protein is poorly expressed in a diseased tissue. To determine whether the defect is at the level of transcription (C)
or translation, which of the following blotting methods would you use?

(A) Southern

(B) Southern and Northern

(C) Northern and Western

(D) Western

Biopiracy means

(A) use of biopatents

601 825 (B) thefts of plants and animals (D)

(C) stealing of bioresources

(D) exploitation of bioresources without authentic permission

A nucleoside is formed of

(A) Pentose sugar, phosphate and nitrogen base

601 826 (B) Phosphate and nitrogen base (D)

(C) Pentose sugar and phosphate

(D) Pentose sugar and nitrogen base

BCG vaccine provides the protection against

(A) Measles

601 827 (B) Cholera (C)

(C) Tuberculosis

(D) Small pox

A disease caused due to allergy is

(A) Enteric fever

601 828 (B) Yellow fever (C)

(C) Hay fever

(D) Trench fever

T-Cell maturation takes place in

(A) Bone marrow

601 829 (B) Spleen (C)

(C) Thymus

(D) Thyroid

Indicate the incorrectly matched option below:

(A) Lister – aseptic surgery

601 830 (B) Sabin – polio vaccine (C)

(C) Pasteur – microscopy

(D) Fleming – penicillin

601 831 A man has some cows and ducks. If the number of heads is 70 and the number of legs is 200, then the number of (A)
cows will be

(A) 30

(B) 44

(C) 20

(D) 70

Increase in the amount of the following is NOT a consequence of sewage effluents in river system

(A) Microbial load

601 832 (B) Phosphate level (C)

(C) Dissolved oxygen

(D) Cyanobacterial density

The unit of distance between genes on a chromosomes is

(A) cDNA

601 833 (B) Morgan (C)

(C) Centimorgan

(D) Chi-square

Which one of the following is an aromatic amino acid?

(A) Phe

601 834 (B) Lys (A)

(C) His

(D) Val

The melting temperature of a DNA molecule is determined by

(A) electrophoresis

601 835 (B) change in electrical conductivity (D)

(C) density gradient ultracentrifugation

(D) change in optical density

During allergic immune response the histamine is released from

(A) B-lymphocyte

601 836 (B) T-lymphocyte (C)

(C) Mast cell

(D) Dendritic cell

E. coli alternate between tumbling and swimming behaviour by reversing the rotation of

(A) Cilia

601 837 (B) Pseudopodia (C)

(C) Flagella

(D) Pili

The average life-span of RBCs in human blood is

(A) 120 days

601 838 (B) 90 days (A)

(C) 45 days

(D) 180 days

601 839 IPTG is a non-fermentable analog of (A)

(A) Lactose

(B) Fructose

(C) Glucose

(D) Galactose

Loss of water as drops of liquid from the surface of a plant is called

(A) Transpiration

601 840 (B) Guttation (B)

(C) Evaporation

(D) Translocation

Bile secretion is stimulated by the hormone

(A) Angiotensin

601 841 (B) Cholecystokinin (B)

(C) Insulin

(D) Glucagon

Initiation of translation is facilitated by

(A) tRNA

601 842 (B) 5’ cap (B)

(C) Poly-A tail

(D) All of the above

The first organism to have its genome sequenced was

(A) Haemophilus influenza

601 843 (B) Escherichia coli (A)

(C) Mycoplasma genitalium

(D) Saccaromyces cerevisiae

Pulse field gel electrophoresis is used for the separation of

(A) Centromeres

601 844 (B) Telomeres (D)

(C) DNA

(D) Chromosomes

The HIV protein that helps insert the HIV provirus into the host DNA is

(A) Reverse transcriptase

601 845 (B) Integrase (B)

(C) Protease

(D) Ligase

601 846 Expression vectors are those that (A)

(A) can produce protein products

(B) are used for genomic libraries

(C) are used for chromosome synthesis

(D) are used for finger-printing

In meiosis, the recombination occurs during

(A) Metaphase I

601 847 (B) Prophase I (B)

(C) Metaphase II

(D) Prophase II

In the preparation of a SDS-Polyacrylamide gel, which one of the following act(s) as the catalyst for
polymerisation?

(A) SDS
601 848 (B)
(B) TEMED

(C) Ammonium persulfate

(D) Bis-acrylamide and Ammonium persulfate

The main function of sweating is

(A) Thermoregulation of body

601 849 (B) Excretion of salt (A)

(C) Maintenance of blood volume

(D) Osmoregulation of body

The enzyme that helps in opening of DNA double-helix in front of a replication fork is

(A) DNA gyrase

601 850 (B) DNA Polymerase I (A)

(C) DNA ligase

(D) DNA topoisomerase

In H1 N1 ‘H’ stands for

(A) Hamoglobin

601 851 (B) Hemeagglutinin (B)

(C) Haemolytic

(D) Human

The type of chromatography used for the determination of molecular weight of proteins is

(A) Ion-exchange chromatography

601 852 (B) Gel filtration (B)

(C) Affinity chromatography

(D) Chromatofocusing

Bacterial ribosomes DO NOT have the following

(A) 18S RNA

601 853 (B) 16S RNA (A)

(C) 5S RNA

(D) Two sub-units

601 854 Why are haploids preferred for plant breeding experiments? (B)

(A) Dominant characters are expressed

(B) Recessive characters are expressed

(C) Induction of mutation is easy

(D) Incomplete dominance is expressed

Vibrio cholerae causes diahorrea by

(A) opening ion channels

601 855 (B) constitutive expression of adenylate cyclase (B)

(C) closing absorption of water from gut epithelium

(D) destroying intestinal cell lining

Blocking of an enzyme through its active site is called

(A) Allosteric inhibition

601 856 (B) Feedback inhibition (D)

(C) Non-competitive inhibition

(D) Competitive inhibition

The ratio of volume of RBCs to plasma is expressed as

(A) Haematocit

601 857 (B) Haematin (A)

(C) Haemogram

(D) Haem percentage

Cells absorb Iron by the process of

(A) Phagocytosis

601 858 (B) Pinocytosis (C)

(C) Endocytosis

(D) Active transport

Toxin-conjugated antibody molecules are known as

(A) Toxoid

601 859 (B) Immunotoxin (B)

(C) Reaginic antibody

(D) Lymphotoxin

Surgical removal of gall bladder in man would lead to

(A) Impairment of digestion of fat

601 860 (B) Impairment of digestion of proteins (A)

(C) Jaundice

(D) Liver cirrhosis

601 861 Malignant tumors typically result in ………….. making the cancer hard to eradicate. (C)

(A) Benign

(B) Tumor

(C) Metastasis

(D) Sarcomas

The antigenic determinant of human blood group antigen is

(A) Carbohydrate

601 862 (B) Lipid (A)

(C) Polypeptide

(D) Amino acid

Telomerase is an enzyme whose macromolecular composition is

(A) Lipoprotein

601 863 (B) Ribonucleoprotein (B)

(C) Ribonucleic acid only

(D) Protein only

Positive control of lac operon is exerted by

(A) cAMP

601 864 (B) CAP (C)

(C) cAMP-CAP

(D) Lactose

Hormone responsible for the production of RBC is

(A) Adrenalin

601 865 (B) Erythroferrone (C)

(C) Erythropoietin

(D) GSH

Which of the following is used for artificial ripening of fruits?

(A) Auxin

601 866 (B) NAA (D)

(C) Zeatin

(D) Ethylene

The Coliform count in drinking water is done to ascertain the

(A) Fecal contamination

601 867 (B) Hardness of water (A)

(C) Effect of chlorination

(D) Effect of pollution

601 868 Gynandromorph is a (C)

(A) Male

(B) Female

(C) Both male and female

(D) None of the above

Agar, commonly used in microbiology studies, is obtained from

(A) Chlamydomonas

601 869 (B) Radiolaria (C)

(C) Gelidium

(D) Volvox

The hormone responsible for the metamorphosis in tadpole is

(A) Adrenaline

601 870 (B) Testosterone (C)

(C) Thyroxine

(D) Growth hormone

Polytene chromosome is found in

(A) Gametes

601 871 (B) Blood cells (D)

(C) Liver cells

(D) Salivary gland cells

Ovalbumin is synthesized in the

(A) Liver

601 872 (B) Ovary (C)

(C) Oviduct

(D) Kidney

Transposon was first discovered in

(A) Zea mays

601 873 (B) Drosophila melanogaster (A)

(C) Caenorhabditis elegans

(D) Mus musculus

The placenta in humans is derived from the

(A) Embryo only

601 874 (B) Uterus only (C)

(C) Endometrium and embryo

(D) Endometrium only

Which of the following modified nucleotides is used for Sanger’s DNA sequencing method?

(A) Deoxyribose 5-methyl cytosine triphosphate

601 875 (B) Bromodeoxyuridine triphosphate (C)

(C) Dideoxyribose adenine triphosphate

(D) Deoxyribose 5-bromo uracil triphosphate

601 876 Sickle Cell Anaemia, a molecular disease of haemoglobin, is an example of (B)

(A) Non sense mutation

(B) Substitution mutation

(C) Deletion mutation

(D) Insertion mutation

All of these reagents are used in PCR except

(A) Taq polymerase

601 877 (B) Restriction enzymes (B)

(C) Oligonucleotides

(D) Deoxynucleoside triphosphate

RNA molecules that exhibit catalytic activity are called

(A) mRNAs

601 878 (B) Ribonucleases (C)

(C) Ribozymes

(D) Ribosomes

Which of the following cells lack true cytoskeleton?

(A) Eukaryotic plant cells

601 879 (B) Prokaryotic bacterial cells (B)

(C) Both (A) and (B)

(D) Prokaryotic cells and eukaryotic animal cells

The microtubule assembly is inhibited by

(A) Colchicine

601 880 (B) Vincristine (D)

(C) Vinblastine

(D) All of the above

In which phase of the cell cycle are the chromosomes inactive, condensed, and not transcribed to messenger
RNA?

(A) G1 phase
601 881 (B) S phase (C)

(C) M phase

(D) G2 phase

A plasmid can be considered as a suitable cloning vector if

(A) it can be readily isolated from the cells

601 882 (B) it possesses a single restriction site for one or more restriction enzymes (D)

(C) insertion of foreign DNA does not alter its replication properties

(D) All of the above

601 883 The size of the DNA that can be packaged into a λ phage is (B)

(A) 50 kb

(B) 35-53 kb

(C) 40-50 kb

(D) any size

The best method for the production of virus-free plant is by

(A) Embryo culture

601 884 (B) Meristem culture (B)

(C) Anther culture

(D) Callus culture

Glyphosate is a herbicide inhibiting

(A) Pigment biosynthesis

601 885 (B) Nucleic acid biosynthesis (D)

(C) Energy production

(D) Aromatic amino acid biosynthesis

Abzymes are

(A) Catalytic antibodies

601 886 (B) Bifunctional enzymes (A)

(C) Metallo enzymes

(D) Plantibodies

If the cytosine content of a double-helical DNA is 20% of the total bases, the adenine content will be

(A) 10%

601 887 (B) 20% (C)

(C) 30%

(D) 40%

The amino acid coded by one codon is

(A) Proline

601 888 (B) Methionine (B)

(C) Phenylalanine

(D) Tryptophan

Vinblastin is produced by

(A) Vinca rosea

601 889 (B) Vernonia cinera (A)

(C) Centella asiatica

(D) Vitex negundu

The first cloned animal is

(A) Dolly

601 890 (B) Guinea pig (A)

(C) Mule

(D) Cat

601 891 Homologous chromosomes move towards opposite poles of a dividing cell during (B)

(A) Mitosis

(B) Meiosis I

(C) Meiosis II

(D) Fertilization

High content of -carotene is present in

(A) Beet root

601 892 (B) Carrot (B)

(C) Tomoto

(D) Redgram

Golden rice is a transgenic crop of the future with the following improved trait

(A) Insect resistance

601 893 (B) High lysine content (C)

(C) High vitamin A

(D) High protein

Proteins having equal positive and negative charges are called as

(A) Positron

601 894 (B) Cation (D)

(C) Anion

(D) Zwitterion

A Hybridoma cell secretes

(A) Antibody

601 895 (B) Antigen (A)

(C) Cytokine

(D) Plantibody

A tissue transplantion from baboon to human is called

(A) Allograft

601 896 (B) Autograft (C)

(C) Xenograft

(D) Isograft

Light activation of enzymes is commonly present in the following organelle

(A) Mitichondria

601 897 (B) Chloroplast (B)

(C) Peroxisome

(D) Glyoxysome

601 898 The half- life of Tritium is (A)

(A) 12.3 years

(B) 14-5 days

(C) 100 years

(D) 1400 years

The model plant for genomic studies is

(A) Arabidopsis thaliana

601 899 (B) Glycine max (A)

(C) Pisum sativum

(D) Nicotiana tabacum

The first case of life patenting was done by

(A) Ananda Chakrabarthy

601 900 (B) Milstein and Kohler (A)

(C) E.C. Cocking

(D) Philip Leder