Which part would be most suitable for raising virus-free plants for micropropagation?
Options
(a) Bark (b) Vascular tissue (c) Meristem (d) Node
Correct Answer:
Meristem
Explanation:
No explanation available. Be the first to write […]
Which one of the following is used as vector for cloning genes into higher organisms?
Options
(a) Baculovirus (b) Salmonella typhimurium (c) Rhizopus nigricans (d) Retrovirus
Correct Answer:
Retrovirus
Explanation:
Retroviurs as has […]
Tobacco plants resistant to a nematode have been developed by the introduction of DNA that produced (in the host cells)
Options
(a) both sense and anti-sense RNA (b) a particular hormone (c) an antifeedant […]
The first stable product of fixation of atmospheric nitrogen in leguminous plants is:
Options
(a) Ammonia (b) NO₃⁻ (c) Glutamate (d) NO₂⁻
Correct Answer:
Ammonia
Explanation:
Ammonia is first stable compound produced in fixation […]
If for some reason, the vasa efferentia in the human reproductive system gets blocked, the gametes will not be transorted form
Options
(a) testes to epididymis (b) epididymis to vas deferns (c) ovary […]
Which one of the following correctly represents the normal adult human dental formula?
Options
(a) 3/3, 1/1, 3/2, 1/1 (b) 2/2, 1/1, 3/2, 3/3 (c) 2/2, 1/1, 2/2, 3/3 (d) 3/3, 1/1, 3/3, 3/3
Which one of the following characteristics are common to both in humans and adult frogs?
Options
(a) Four – chambered heart (b) Internal fertilization (c) Nucleated RBC s (d) Ureotelic mode of excretion.
Correct […]
The linking of antibiotic resistance gene with the plasmid vector became possible with
Options
(a) DNA ligase (b) Endonucleases (c) DNA polymerase (d) Exonucleases
Correct Answer:
DNA ligase
Explanation:
No explanation available. Be […]
Molecular basis of organ differentiation depends on the modulation in transcription by
Options
(a) ribosome (b) transcription factor (c) anticodon (d) RNA polumerse
Correct Answer:
RNA polumerse
Explanation:
The process of formation of […]
In humans, at the end of the first meiotic division, the male germ cells differentiate into the
Options
(a) primary spermatocytes (b) secondary spermatocytes (c) spermatids (d) spermatozonia
Correct Answer:
secondary spermatocytes
Explanation:
In […]
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