61. Flowers, leaves and seeds of which plant are used to prepare a narcotics ‘Marijuana’?
(1) Cannabis Sativa
(2) Nicotiana tabacum
(3) Opium Poppy
(4) Mentha Spicata
Answer: (1) Cannabis Sativa
The narcotic marijuana is prepared from the female plant of the genus Cannabis, primarily the species Cannabis sativa and Cannabis indica. The parts used are the dried flowers (buds), leaves, and to a lesser extent, the stems.
62. In prokaryotic genetic code, which is the initial code for N-formyl methionine?
(1) TTG
(2) CUG
(3) GGC
(4) AUG
Answer: (4) AUG
63. Which of the following sets of hormones regulate menstrual cycle?
(1) FSH, LH, estrogen and progesterone
(2) Estrogen, testosterone, LH and Corticosterone
(3) Cortisol, estrogen, progesterone and FSH
(4) Dihydrotestosterone, estrogen, progesterone and FSH
Answer: (1)
64. The main objective/s of “Human Genome Project 1990” was/were _______.
a. To identify 20,000 to 25,000 genes in human.
b. To determine the sequence of 5 billion base pairs in DNA.
c. To incorporate new genomic knowledge into research and medicine.
d. To develop cloning of animals.
(1) Only b and d
(2) Only a and c
(3) Only a
(4) Only b
Answer: (2) Only a and c
65. Which of the following is used as a substitute for wool in the production of commercial fibers?
(1) Dacron
(2) Teflon
(3) Polyacrylonitrile
(4) Caprolactam
Answer: (3) Polyacrylonitrile (Acrylic fiber)
Q. 33
The Bengal Florican is neither a reptile nor an amphibian.
The leatherback sea turtle’s IUCN status is vulnerable.
The gharial and four-toed river terrapin are both critically endangered.
So no option is correct.
Yes.