In the periodic table, columns is considered to be a ____...? Mcqs

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In the periodic table, columns is considered to be a ____...?

(A) Periods
(B) Groups

(C) Zigzag
(D) Diagonal

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Choose the incorrect statement regarding meiosis...?

(A) Maintain chromosome number from generation to generation
(B) Reduces the diploid number of chromosomes to half

(C) Takes place in germ cell to produce gametes
(D) Production of new somatic cells from germ cells

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The part of an eye acting as a diaphragm of camera is ______...?

(A) Cornea
(B) Lens

(C) Iris
(D) Retina

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What is the phenotypic ratio in the F2 generation of incomplete dominance...?

(A) 2:1
(B) 1:2:1

(C) 9:3:3:1
(D) 1:1

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Exposure to sunlight helps a person improve his health because ________...?

(A) Resistance power increases
(B) The infrared light kills bacteria in the body

(C) The ultraviolet rays convert skin oil into Vitamin D
(D) The pigment cells in the skin get stimulated and produce a healthy tan

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Which is the largest gland in the human body...?

(A) Thyroid
(B) Liver

(C) Pancreas
(D) None of these

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Material from which current passes through are called...?

(A) Insulators
(B) Conductors

(C) Semiconductors
(D) None of these

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In human the Y chromosome is passed to next generation from...?

(A) Father to son
(B) Mother to son

(C) Father to daughter
(D) Mother to daughter

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The interaction of living organisms with each other and with their environment is...?

(A) Community
(B) Population

(C) Ecosystem
(D) Habitat

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What is caused by the rotation of the Earth...?

(A) Seasons
(B) Day and Night

(C) Tides
(D) Earthquakes

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