Answer: Genetic engineering or recombinant DNA technology is used in the production of Flavr Savr tomato. It has a longer shelf life due to a... View Article
Answer: Tapioca plant (Cassava) can be vegetatively propagated by stem cuttings. Vegetative propagation is a type of asexual reproduction,... View Article
Answer: The thin filament of a myofibril is made up of three proteins, namely, actin, troponin and tropomyosin. Two actin filaments are wound... View Article
1) Y chromosome 2) X body 3) Autosomes 4) Polar body Answer:2) X body Explanation: Henking observed a nuclear structure in the sperm of... View Article
I) Formation of Spores, II) Gametes Formation, III) Formation of Gametophyte, IV) Fertilisation, V) Embryo Formation 1) III, IV, V, II, I 2)... View Article
a) heterospory b) homospory c) homogamy d) heterogamy Answer: a) heterospory Explanation: Heterospory is considered a precursor to seed... View Article
a) 12 b) 40 c) 20 d) 16 Answer: b) 40 Explanation: Biological nitrogen fixation can be represented by the equation as follows: N2 + 8H+ +... View Article
a) Tubers b) Rhizomes c) Corm d) Bulb Answer: a) Tubers Explanation: Vegetative propagation is the asexual reproduction in plants where new... View Article
When a sperm comes in contact with the zona pellucida layer of the female ovum, it induces structural changes in the wall of ovum which restricts... View Article
Entamoeba histolytica is an amoeba which causes amoebiasis in humans. It resides in the human gut and causes diarrhea and stomach ache in their... View Article
a) Southern blotting b) PCR technique c) DNA probes d) Plasmid DNA Answer: c) DNA probes Explanation: A DNA probe can be used to identify... View Article
