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General Science MCQ
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The Law of Segregation and The Law of Independent Assortment were discovered by
Correct Option:
A
[ Johann Gregor Mendel ]
Explanation:
Thorium and Beryllium are
Correct Option:
C
[ Atomic minerals ]
Explanation: Atomic minerals include mainly minerals containing
uranium, thorium, rare metals, viz. niobium, tantalum, lithium, beryllium, titanium, zirconium, and rare earth elements (REEs) containing uranium and thorium as well as beach sand minerals.
Down syndrome is a/an
Correct Option:
B
[ Genetic disease ]
Explanation: A genetic condition caused by having an extra chromosome 21 in some or all of the body's cells.
In plants, meiotic cell division takes place in the:
Correct Option:
C
[ flowers ]
Explanation: Meiosis is a type of cell division in which the number of chromosomes is halved (from diploid to haploid) in the daughter cells, i.e., the gametes. In plant it takes place in Flower.
Study of, and the selection, planting, care, and removal of individual trees, shrubs, vines, and other perennial woody plants is known as
Correct Option:
C
[ Arboriculture ]
Explanation: Arboriculture is the art of cultivating, properly managing, and studying individual shrubs, trees, vines, and any other woody plants.
In plants, extra-chromosomal DNA is found in
Correct Option:
B
[ Chloroplast ]
Explanation: In many cases, extrachromosomal DNA is contained in cytoplasmic organelles, such as mitochondria (animals), and in chloroplasts and plastids (plants).
The fruit of banana is botanically a
Correct Option:
B
[ Berry ]
Explanation: A banana is an elongated, edible fruit, botanically a berry, produced by several kinds of large herbaceous flowering plants in the genus Musa.
In a forest ecosystem, green plants are
Correct Option:
A
[ the primary producers. ]
Explanation: The green plant in the ecosystem are called producers. In a terrestrial ecosystem, major producers are herbaceous and woody plants. Likewise,
producers in an aquatic ecosystem are various species like phytoplankton, algae and higher plants.
Which of the following is a ripening hormone?
Correct Option:
D
[ Ethylene ]
Explanation: Ethylene is used for the controlled ripening of citrus fruits, tomatoes, bananas and many other fruits, vegetables and flowers.
"ELISA" test is employed to diagnose:
Correct Option:
B
[ AIDS antibodies ]
Explanation: The assay used most widely to detect or diagnose virus infection, especially infection of blood borne viruses e.g. HBV, HCV, HIV and HTLV, is the enzyme linked immunosorbent assay (ELISA).
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