Which of the following is/are example(s) of a lotic ecosystem?
(A) Lake
(B) Pond
(C) River
(D) Stream

Which of the following method(s) is/are used to estimate protein concentration?
(A) Anthrone
(B) Biuret
(C) Bradford
(D) Lowry

Which of the following statement(s) about eukaryotic DNA topoisomerase is/are correct?
(A) Topoisomerase I creates transient single-strand breaks
(B) Topoisomerase I creates transient double-strand breaks
(C) Topoisomerase II creates transient single-strand breaks
(D) Topoisomerase II creates transient double-strand breaks

Which of the following statement(s) about Golden Rice is/are correct?
(A) Consumption of it increases vitamin A levels
(B) Consumption of it increases vitamin D levels
(C) Consumption of it increases vitamin K levels
(D) It is a transgenic crop containing β-carotene

Which of the following is/are lateral meristems?
(A) Cork cambium
(B) Procambium
(C) Protoderm
(D) Vascular cambium

Ionic character of the covalent bonds in the compounds Cl₂, HCl, NaCl, NaF follows the order
(A) Cl₂ > NaCl > HCl > NaF
(B) HCl > Cl₂ > NaF > NaCl
(C) HCl > NaCl > NaF > Cl₂
(D) NaF > NaCl > HCl > Cl₂

Chromosome duplication during the cell cycle occurs in
(A) G1 phase
(B) G2 phase
(C) M phase
(D) S phase

The boiling points of Iodomethane, Dibromomethane, Bromomethane, Chloromethane follow the order
(A) Bromomethane > Dibromomethane > Iodomethane > Chloromethane
(B) Bromomethane > Iodomethane > Chloromethane > Dibromomethane
(C) Dibromomethane > Iodomethane > Bromomethane > Chloromethane
(D) Iodomethane > Bromomethane > Chloromethane > Dibromomethane

In chick embryo, the ectoderm generates
(A) alveolar cells
(B) germ cells
(C) neurons
(D) red blood cells

If a variable z shows a standard normal distribution, then the percent probability that 0≤z2≤1 is (rounded off to the nearest integer).
(A) 34
(B) 68
(C) 95
(D) 99