The similarity of bone structure in the forelimbs of many vertebrates is an example of
Options
(a) Adaptive radiation (b) Convergent evolution (c) Analogy (d) Homology
Correct Answer:
Homology
Explanation:
In different vertebrates, […]
The Golgi complex participates in
Options
(a) Activation of amino acid (b) Respiration in bacteria (c) Formation of secretory vesicles (d) Fatty acid breakdown
Correct Answer:
Formation of secretory vesicles
Explanation:
Golgi complex, […]
Sweet potato is a modified
Options
(a) Rhizome (b) Tap root (c) Adventitious root (d) Stem
Correct Answer:
Adventitious root
Explanation:
Sweet potato is a modified adventitious root for storage of food. Rhizomes […]
Stomatal movement is not affected by
Options
(a) CO₂ concentration (b) O₂ concentration (c) Light (d) Temperature
Correct Answer:
O₂ concentration
Explanation:
Light, temperature and concentration of CO₂ affect opening and closing […]
Stomata in grass leaf are
Options
(a) Barrel shaped (b) Rectangular (c) Kidney shaped (d) Dumb-bell shaped
Correct Answer:
Dumb-bell shaped
Explanation:
Grass being a monocot, has Dumb-bell shaped stomata in their leaves.
Pneumatophores occur in
Options
(a) Submerged hydrophytes (b) Carnivorous plants (c) Free-floating hydrophytes (d) Halophytes
Correct Answer:
Halophytes
Explanation:
Halophytes like mangrooves have pneumatophores.Apogeotropic (–vely geotropic) roots having lenticels called pneumathodes to uptake […]
Plants having little or no secondary growth are
Options
(a) Cycads (b) Conifers (c) Deciduous angiosperms (d) Grasses
Correct Answer:
Grasses
Explanation:
Grasses are monocots and monocots usually do not have secondary growth.Palm […]
Oxygen is not produced during photosynthesis by
Options
(a) Chara (b) Cycas (c) Nostoc (d) Green sulphur bacteria
Correct Answer:
Green sulphur bacteria
Explanation:
Green sulphur bacteria do not use H2O as source […]
Offsets are produced by
Options
(a) Parthenogenesis (b) Parthenocarpy (c) Mitotic divisions (d) Meiotic divisions
Correct Answer:
Mitotic divisions
Explanation:
Offset is a vegetative part of a plant, formed by mitosis.Meiotic divisions do […]
Nissl bodies are mainly composed of
Options
(a) Free ribosomes and RER (b) Nucleic acids and SER (c) DNA and RNA (d) Proteins and lipids
Correct Answer:
Free ribosomes and RER
Explanation:
Nissl […]
2017 Copyright Doctor Dreams Training Academy