61) Ordinary table salt is sodium chloride. What is baking soda?
a) Potassium chloride
b) Potassium carbonate
c) Potassium hydroxide
d) Sodium bicarbonate
62) Potatoes are borne on ?
a)Primary roots
b) Stem branches
c) Lateral roots
d) Adventitious roots
63) Neurospora is used as genetic material because
a) it has short life cycle of 10 days
b) the product of single meiosis can be easily analysed
c) meiotic products are linearly arranged in the form of ordered tetrads
d) is a diploid fungus
64) Carrot is orange in color because ?
a)It grows in the soil
b) It is not exposed to sunlight
c) It contains carotene
d) The entire plant is orange in color
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