NDA 2018 Paper 2 | Biology Question 54 | General Science

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NDA 2018 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

The oxygen evolved during photosynthesis comes from splitting of

water

carbon dioxide

oxygen

light

NDA 2018 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

Which one of the following depicts the correct circuit of a reflex arc?

Effector $$\to$$ sensory neuron $$\to$$ spinal cord $$\to$$ motor neuron $$\to$$ receptor

Receptor $$\to$$ sensory neuron $$\to$$ spinal cord $$\to$$ neuron $$\to$$ effector

Receptor $$\to$$ sensory neuron $$\to$$brain $$\to$$motor neuron $$\to$$ effector

Sensory neuron $$\to$$ receptor $$\to$$ brain effector $$\to$$ motor neuron

NDA 2018 Paper 2

MCQ (Single Correct Answer)

+2.5

-0.83

If one set of chromosomes for a given plant is represented as n; in case of double fertilisation, the zygote and the endosperm nucleus of a diploid plant would have how many sets of chromosomes, respectively?

n and 2n

2n and 2n

n and 3n

2n and 3n

NDA 2018 Paper 1

MCQ (Single Correct Answer)

+2.5

-0.83

AIDS is caused by a virus whose genetic material is

single-stranded circular DNA

double-stranded DNA

single-stranded RNA

double-stranded RNA

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Questions Asked from Marks 2.5