1. Thorn of Bougainvillea and tendrils of Cucurbita – Analogous organs
2. Nictitating membrane and blind spot in human eye – vestigial organs
3. Nephridia of earthworm and Malpighian tubules of cockroach - Excretory organs
4. Wings of honey bee and wings of crow - Homologous organs
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe finches of Galapagos islands provide an evidence in favour of:
1. special creation
2. evolution due to mutation
3. retrogressive evolution
4. biogeographical evolution
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following is not a living fossil?
1. King crab
2. Sphenodon
3. Archaeopteryx
4. Peripatus
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyVariations caused by mutation, as proposed by Hugo de Vries, are:
1. small and directionless
2. random and directional
3. random and directionless
4. small and directional
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?
1. 0.16 (AA); 0.36 (Aa); 0.48 (aa)
2. 0.36 (AA); 0.48 (Aa); 0.16 (aa)
3. 0.16 (AA); 0.24 (Aa); 0.36 (aa)
4. 0.16 (AA); 0.48 (Aa); 0.36 (aa)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn a species, the weight of a newborn ranges from 2 to 5 kg. 97% of the newborns with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 kg to 5 kg die. Which type of selection process is taking place?
1. Cyclical selection
2. Directional selection
3. Stabilizing selection
4. Disruptive selection
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the hominids with their correct brain size:
Column I | Column II | ||
(a) | Homo habilis | (i) | 900 cc |
(b) | Homo neanderthalensis | (ii) | 1350 cc |
(c) | Homo erectus | (iii) | 650-800 cc |
(d) | Homo sapiens | (iv) | 1400 cc |
Select the correct option.
Options: | (a) | (b) | (c) | (d) |
1. | (iv) | (iii) | (i) | (ii) |
2. | (iv) | (i) | (iv) | (ii) |
3. | (iii) | (ii) | (i) | (iv) |
4. | (iii) | (iv) | (i) | (ii) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFor the stability of the organic compounds, Oparin opined that probably:
1. UV radiation never reached the surface of the primeval Earth
2. the primitive Earth was in a molten state
3. the primitive Earth atmosphere was reducing rather than oxidizing
4. plenty of energy sources were available for chemical reactions to occur
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyBoth Charles Darwin and A.R.Wallace were influenced by the:
1. writings of J.B.S.Haldane on the origin of life
2. findings of Urey and Miller experiments
3. findings on the Galapagos Islands
4. essay on human population by T.R.Malthus
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following pairs of organs do not represent analogous organs?
1. Eye of an octopus and eye of a mammal
2. Flippers of penguin and flippers of dolphin
3. Wings of bat and forelimbs of humans
4. Wings of birds and wings of butterfly
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology