IIT JAM Biotechnology

Genes in two species that are derived from the same ancestral gene in their most recent common ancestor are called (A) analogs (B) heterologs (C) orthologs (D) paralogs

An object is placed 15 cm in front of a convex mirror, which has a radius of curvature 30 cm. Which one of the following is true of the image formed? (A) Real and inverted (B) Real and upright (C) Virtual and inverted (D) Virtual and upright

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

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

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

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

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

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

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

Q.16 Determine the correctness or otherwise of the following Assertion [a] and the Reason [r]: Assertion [a]: The resolving power of a transmission electron microscope is higher than that of the light microscope. Reason [r]: The wavelength of electrons is shorter than that of visible light.