Both, autogamy and geitonogamy are prevented in
Options
(a) papaya (b) Cucumber (c) Castor (d) maize
Correct Answer:
papaya
Explanation:
Papaya is dioecious i.e., male and female flowers occurs in separate plants so […]
As compared to a dicot root, a monocot root has
Options
(a) many xylem bundles (b) relatively thicker periderm (c) inconspicuous annual rings (d) more abundant secondary xylem
Correct Answer:
many xylem bundles
Agarose extracted from sea weeds finds use in :
Options
(a) Spectrophotometry (b) Tissue culture (c) PCR (d) Gel electrophoresis
Correct Answer:
Gel electrophoresis
Explanation:
In gel electrophoresis agarose extracted from sea weed […]
A sequential expression of a set of human genes
Options
(a) messenger RNA (b) DNA sequence (c) ribosome (d) transfer RNA
Correct Answer:
DNA sequence
Explanation:
A sequential expression of a set of […]
Which one of the following plants is monoecious?
Options
(a) Pinus (b) Cycas (c) Papaya (d) Marchantia
Correct Answer:
Pinus
Explanation:
Pinus plant is monoecious i.e. both male and female cone are present in […]
Low Ca⁺⁺ in the body fluid may be the cause of :
Options
(a) tetany (b) anaemia (c) angina pectoris (d) gout
Correct Answer:
tetany
Explanation:
Tetany is caused by reduction in the calcium […]
Cycas and Adiantum resemble each other in having:
Options
(a) Seeds (b) Motile Sperms (c) Cambium (d) Vessels
Correct Answer:
Motile Sperms
Explanation:
Cycas (a gymnosperm) and Adiantum known as Maiden hair fern is […]
The most active phagocytic white blood cells are:
Options
(a) Neutrophils and eosinophils (b) lymphocytes and macrophages (c) eosinophils and lymphocytes (d) neutrophils and monocytes
Correct Answer:
neutrophils and monocytes
Explanation:
The most active […]
Modern detergents contain enzyme preparations of:
Options
(a) Acidophiles (b) Alkaliphiles (c) Thermoacidophiles (d) Thermophiles
Correct Answer:
Alkaliphiles
Explanation:
Modern detergent contain enzymes preparations of alkaliphiles. Alkaliphiles live in alkaline environments like soda lakes, […]
Compared to a bull a bullock is docile because of
Options
(a) higher levels of cortisone (b) lower levels of blood testosterone (c) lower levels of adrenaline/ noradrenaline in its blood (d) higher levels […]
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