What is the correct genotypic ratio from a cross between Aa and aa...? Mcqs

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What is the correct genotypic ratio from a cross between Aa and aa...?

(A) 1/2 AA & 1/2 aa
(B) 1/2 Aa & 1/2 aa

(C) 3/4 Aa & 1/4 aa
(D) 1/4 AA 1/2 Aa & 1/4 aa

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How many lenses are present in refracting telescope...?

(A) Five lenses
(B) Three lenses

(C) Four lenses
(D) Two lenses

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The _______ is made up of a double helix of two complementary strands....?

(A) RNA
(B) Chromosome

(C) DNA
(D) Protein

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The step-up transformer ______...?

(A) Increases the input current
(B) Increases the input voltage

(C) Has more turns in the primary
(D) Has less turns in the secondary coil

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Laboratory Thermometer has a range of...?

(A) -20°C to 50°C
(B) 0°C to 100°C

(C) 10°C to 110°C
(D) 50°C to 200°C

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Trachoma is the disease of the________ ...?

(A) Brain
(B) Spinal cord

(C) Larynx
(D) Eye

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The atmosphere near the earth’s surface is “heated from below.” Which of the following does not significantly contribute to this heating _____________________...?

(A) Conduction of heat upward from a hot surface
(B) Convection from a hot surface

(C) Absorption of infrared energy that has been radiated from the surface
(D) Heat energy from the earth’s interior

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Coke is made by heating coal in the absence of air at__________...?

(A) 700 °C
(B) 900 °C

(C) 1300 °C
(D) 1700 °C

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What is the average adult pulse rate...?

(A) 140-150
(B) 115-125

(C) 72-80
(D) 60

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What happens when two same poles of magnets are brought close to each other...?

(A) They attract
(B) They make an electric current flow

(C) They repel
(D) None

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