1. If two heterozygous F₁ are crossed, then the ratio of homozygous dominant and homozygous recessive in monohybrid cross will be-
A. 1:1B. 2:1C. 3:1D. 1:3 2
2. How many cervical vertebrae are there in humans?
A. 5B. 6C. 7D. 8
3. Which device can convert AC signal to DC signal?
A. TransformerB. DiodeC. AmmeterD. Voltmeter
4. Rahat will be going to the US, _____ she?
A. isn’tB. won’tC. can’tD. didn’t
5. Area of the region bounded by the curve, x-axis, and will be- y = x2 x = 1 x = 3
A. 26 3 sq. unitB. 68 9 sq. unitC. Both a & bD. None = ∫ 3 1 x2dx = [ x3 3 ]3 1 = 26 3 = 78 9 sq. unit
6. If he _____ earlier, he _____ the train.
A. arrived, would missB. had arrived, would have caughtC. arrives, would have missedD. was arriving, would catch