During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning
During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning is prevented by : Options (a) Xanthophyll (b) Carotene (c)…
6 years ago
AIPMT2015RS
An association of individuals of different species living in the same habitat and
An association of individuals of different species living in the same habitat and having functional interactions is: Options (a) Biotic…
6 years ago
Auxin can be bioassayed by :
Auxin can be bioassayed by : Options (a) Hydroponics (b) Potometer (c) Lettuce hypocotyl elongation (d) Avenacoleoptile curvature Correct Answer:…
6 years ago
Male gametophytein angiosperms produces:
Male gametophytein angiosperms produces: Options (a) Single sperm and vegetative cell (b) Single sperm and two vegetative cells (c) Three…
6 years ago
In angiosperms, microsporogenesis and megasporogenesis :
In angiosperms, microsporogenesis and megasporogenesis : Options (a) form gametes without further divisions (b) Involve meiosis (c) occur in ovule…
6 years ago
Body having meshwork of cell, internal cavities lined with food filtering flagellated
Body having meshwork of cell, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of…
6 years ago
A jawless fish, which lays eggs in fresh water and whose ammocoetes larvae after
A jawless fish, which lays eggs in fresh water and whose ammocoetes larvae after metamorphosis return to the ocean is:…
6 years ago
The oxygen evolved during photosynthes is comes from water molecules. Which one
The oxygen evolved during photosynthes is comes from water molecules. Which one of the following pairs of elements is involved…
6 years ago
In photosynthesis the light-independent reactions take place at :
In photosynthesis the light-independent reactions take place at : Options (a) Photosystem-I (b) Photosystem-II (c) Stromal matrix (d) Thylakoid lumen…
6 years ago
Chromatophores take part in:
Chromatophores take part in: Options (a) Growth (b) Movement (c) Respiration (d) Photosynthesis Correct Answer: Photosynthesis Explanation: Chromatophores play an…
6 years ago