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Identify The Meiotic Stage In Which The Homologous Chromosomes Separate While The Sister Chromatids Remain Associated At Their Centromeres.

a) Anaphase II b) Metaphase I c) Anaphase I d) Metaphase II Answer: c) Anaphase I... View Article

Which One Of The Following Cellular Parts Is Correctly Described?

a) Thylakoids - flattened membranous sacs forming the grana of chloroplasts b) Lysosomes - optimally active at a pH of about 8.5 c)... View Article

Which One Of The Following Categories Of Animals Is Correctly Described With No Single Exception In It?

a) All bony fishes have four pairs of gills and an operculum on each side. b) All mammals are viviparous and possess diaphragm for breathing... View Article

Which One Of The Following Pairs Of Animals Are Similar To Each Other Pertaining To The Feature Stated Against Them?

a) Ascaris and Ancylostoma - Metameric segmentation b) Garden lizard and Crocodile - Three chambered heart c) Pteropus and Ornithorhynchus -... View Article

In Genetic Engineering, The Antibiotics Are Used?

a) as selectable markers b) as sequences from where replication starts c) to keep the cultures free of infection d) to select healthy... View Article

Biolistics (Gene-gun) Is Suitable For?

a) DNA fingerprinting b) Transformation of plant cells c) Constructing recombinant DNA by joining with vectors d) Disarming pathogen vectors... View Article

Tobacco Plants Resistant To A Nematode Have Been Developed By The Introduction Of DNA That Is Produced (In The Host Cells).

a) both sense and antisense RNA b) a toxic protein c) an antifeedant d) a particular hormone Answer: a) both sense and antisense RNA... View Article

In Gobar Gas, The Maximum Amount Is That Of?

a) Carbon dioxide b) Methane c) Propane d) Butane Answer: b) Methane Explanation: The most amount of methane in gobar gas is produced... View Article

The Second Stage Of Hydrosere Is Occupied By Plants Like?

a) Azolla b) Typha c) Salix d) Vallisneria Answer: d) Vallisneria Explanation: Vallisneria represents the second stage of Hydrosere... View Article

The Rate Of Formation Of New Organic Matter By Rabbit In A Grassland, Is Called?

a) Net primary productivity b) Secondary productivity c) Gross primary productivity d) Net productivity Answer: b) Secondary productivity... View Article

Sacred Groves Are Specially Useful In?

a) year-round flow of water in rivers b) generating environmental awareness c) preventing soil erosion d) conserving rare and threatened... View Article

Vernalisation Stimulates Flowering In?

a) Ginger b) Zamikand c) Carrot d) Turmeric Answer: c) Carrot... View Article

For Its Action, Nitrogenase Requires?

a) High input of energy b) Mn2+ c) Super oxygen radicals d) Light Answer: a) High input of energy Explanation: Nitrogenase necessitates... View Article

As Compared To A Dicot Root, A Monocot Root Has?

a) Relatively thicker periderm b) Many xylem bundles c) More abundant secondary xylem d) Inconspicuous annual rings Answer: b) Many xylem... View Article

Through Their Effect On Plant Growth Regulators, What Do The Temperature And Light Control In The Plants?

a) Apical dominance b) Flowering c) Fruit elongation d) Closure of stomata Answer: b) Flowering Explanation: Flowering is caused by... View Article

How Many Plants In The List Given Below Have Marginal Placentation? Mustard, Gram, Tulip, Asparagus, Arhar, Sun Hemp, Chilli, Colchicine, Onion, Moong, Pea, Tobacco, Lupin?

a) Five b) Three c) Six d) Four Answer: c) Six... View Article

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