Which of the following statements associated with cancer is/are correct?

 1. Oncogenes expression and some viral infections can cause cancer

2. In metastasis, the cancer cells spread through the blood and lymphatic system

Select the answer using the code given below:

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

Which one of the following statements is NOT correct?

 (a) Single celled eukaryotes belong to Kingdom Protista

(b) Yeast, a fungus is multicellular
(c) The fungi constitute a unique kingdom of heterotrophs
(d) Ascomycetes, a saprophytic fungi is multicellular or rarely unicellular

Which one of the following is NOT a biocontrol agent?

 (a) Bacillus thuringiensis

(b) Ladybird beetle
(c) Trichoderma
(d) Aphid

Which of the following statements is/are associated with role of enzymes in genetic engineering?

 1. Exonucleases remove nucleotides from the ends of DNA

2. Restriction endonucleases are used to form recombinant molecule of DNA

Select the answer using the code given below:

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

Which of the following statements is NOT correct?

 (a) Hardy–Weinberg Principle says that allele frequencies in a population is unstable

(b) Branching descent and natural selection are the two key concepts of Darwinian Theory of evolution
(c) Lamarckism is based on inheritance of acquired character
(d) The concept of mutation, gene flow, genetic drift, gene recombination and natural selection affect Hardy–Weinberg equilibrium

Which one of the following is NOT found in a prokaryotic cell?

 (a) Cell wall

(b) Ribosome
(c) Nuclear membrane
(d) Plasmid DNA

Which of the following is associated to Schizophrenia?

 (a) Multiple personalities

(b) Neurodegeneration
(c) Not subjected to environmental influence
(d) Hallucination

Which one of the following is involved in light independent reactions of photosynthesis?

 (a) Calvin cycle

(b) Hill reaction
(c) Photosystem
(d) Light absorption by photosynthetic pigments

Consider the following statements associated with Malaria:

 1. Only the female Anopheles mosquitoes take human blood for reproduction

2. Plasmodium can pass across the placenta from mother to foetus

Which of the statements given above is/are correct?

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

Which of the following activity a mammalian erythrocyte CANNOT perform?

 (a) Diffusion of oxygen

(b) Protein synthesis and cell division
(c) Squeeze while passing through capillaries
(d) Carry haemoglobin

Which one of the following is important for cartilage but NOT a globin protein?

 (a) Haemoglobin

(b) Myoglobin
(c) Keratin
(d) Collagen

Which one of the following is NOT true of mitotic cell division?

 (a) The nuclei of the two daughter cells in mitosis have same number of chromosomes

(b) Replacement of cell and tissue repairing is possible through mitosis
(c) Asexual reproduction in eukaryotes is done by mitosis
(d) The cells become haploid as a result of mitosis

In which of the following processes, active transport is NOT used?

 (a) Reabsorption of amino acids and glucose from kidney into blood

(b) Loading sugar from photosynthesizing leaf cells into phloem tissue for transportation
(c) Passage of Na⁺ and Cl⁻ through hydrophilic channel created by protein molecules
(d) Absorption of glucose and electrolytes into the bloodstream

Which of the following statements regarding the similarity in glycogen in animal cell and starch in plant cell is/are NOT correct?

 1. Both are mixtures of amylose and amylopectin

2. Starch and glycogen, both represent the storage form of carbohydrate in liver cells

Select the answer using the code given below:

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

A chemical that donate proton (hydrogen ion) is called

 (a) Hydrophilic

(b) Protophilic
(c) Hydrophobic
(d) Acid

An aqueous solution of an acid conducts electricity. This is because

 (a) It contains hydrogen ion

(b) It contains water molecules
(c) Electricity passes through it
(d) It generates electricity

The mass of one mole of a substance in grams is called its

 (a) Kilo-gram mass

(b) Gram-mass
(c) Molar-mass
(d) All the above

When electricity is passed through an aqueous solution of sodium chloride, it decomposes to form

 (a) NaHCO₃

(b) NaOH
(c) HCl
(d) HOCl

Concentration of a solution can be expressed in :

 1. Molarity

2. Molality

Select the answer using the code given below:

(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

Sodium metal is kept immersed in kerosene oil. This is because

 (a) It evaporates quickly in the air

(b) It undergoes corrosion with air
(c) It reacts violently with moisture in air
(d) All of the above