1 in mitosis and 1 in meiosis 2 in mitosis and 2 in meiosis 1 in mitosis and 2 in meiosis 2 in mitosis and 4 in meiosis Correct Answer:... View Article
The plant Brassica campestris belongs to the family Brassicaceae. It is an economically important plant, which includes common everyday plants... View Article
Organs respond to external stimuli within a fraction of seconds. It does so in response to any dangerous situation in the environment. For... View Article
a) Adaptive Radiation b) Divergent Evolution c) Marsupial Radiation d) None of the above Answer: a) Adaptive Radiation Explanation: Adaptive... View Article
a) Tap roots b) Adventitious roots c) Aerial roots d) Stilt roots Answer: a) Tap roots Explanation: Fusiform, napiform and conical roots are... View Article
a) 13 and 14 b) 11 and 12 c) 9 and 10 d) 14 and 15 Answer: b) 11 and 12 Explanation: The male reproductive system of an earthworm comprises... View Article
10-20% 30-40% 40-50% 70-80% Answer: a) 10-20% Explanation: Of the total cellular RNA content, tRNA constitutes about 10-20%. mRNA is 2-5% and... View Article
a) Abundance of nutrients b) Accumulation of waste products c) Abundant space d) Absence of bacteriophage Answer: b) Accumulation of waste... View Article
Fat Protein Carbohydrate Lipids Answer: b) Protein Explanation: When the substrate for respiration is protein, it is known as protoplasmic... View Article
The digestive system of cockroaches is divided into three main portions: foregut, midgut and hindgut. Here is a simplified diagram of the... View Article
a) Liquorice b) Peanut c) Tamarind d) Chickpea Answer: a) Liquorice Explanation: Liquorice, commonly known as mulethi in Indian households,... View Article
a) Both are present in eukaryotic cells b) Both have their own genetic material c) Both are present in eukaryotes d) Both are present in... View Article
Chemical, light Light, chemical Heat, physical Kinetic, chemical Answer: b) Light, chemical Explanation: During photosynthesis, light energy... View Article
Parasitic plants are the ones that are totally dependent on their host for their survival. An example is the dodder plant that forms weak suckers... View Article
3 4 5 2 Answer: b) 4 Explanation: A pigeon’s heart is four-chambered with 2 auricles and 2 ventricles. It is large, red, triangular and... View Article
a) Birds b) Insects c) Mammals d) Reptiles Answer: a) Birds Explanation: The gizzard is a specialised structure found in the stomach of... View Article
a) Ovary b) Anther c) Petals d) None of the above Answer: a) Ovary Explanation: Fertilisation takes place in a flower when pollen grains are... View Article
a) Auxin b) Ethylene c) Cytokinin d) Jasmonic Acid Answer: c) Cytokinin Explanation: Cytokinin is a plant hormone that promotes cell growth... View Article
