91.

Which one of the following is not in situ conservation method?

• National parks

• Wildlife sanctuary

• Biosphere reserves

• Scared groves

• Scared groves

Which of the following microbes is used for the commercial production of ethanol?

• Clostridium butylicum

• Trichoderma polysporum

• Monascus purpureus

• Saccharomyces cerevisiae

• Saccharomyces cerevisiae

• i - E; ii - A; iii - D; iv - C; v - B

• i - B; ii - A; iii - D; iv - D; v - C

• i - C; ii - A; iii - B; iv - C; v - D

• i - C; ii - E; iii - A; iv - D; v - B

• i - C; ii - E; iii - A; iv - D; v - B

Short-lived immunity acquired from mother to foetus across the placenta or through mother's milk to the infant is categorized as

• Active immunity

• Passive immunity

• CMI

• Autoimmunity

• Autoimmunity

Morphine, used as an analgesic is obtained from

• Erythoxylum coca

• Atropa belladonna

• Papaver somniferum

• Cannabis sativa

• Cannabis sativa

Which of these are examples of evolution by anthropogenic action?

(i) Adaptive radiation of marsupials of Australia.

(ii) Appearance of antibiotic resistant microbes.

(iii) Evolution in finches Galapagos island.

(iv) Appearance of dark winged moth in England during post industrialization period.

(v) Convergent evolution of placental mammals in Australia.

• (i) and (iii) only

• (v) only

• (ii) only

• (ii) and (iv) only

• (ii) and (iv) only

In a population, a gene has two alleles 'A' and 'a'. The frequency of allele 'A' is 0.4. What will be the frequency of allele 'a'?

• 0.4

• 0.6

• 0.48

• 0.16

• 0.16

Evolution of different species in a given geographical area, starting from a point and spreading to other geographical areas is known as

• Geographic isolation

• Migration

• Parallel evolution

• Natural selection

• Natural selection

Two pink flowered snapdragon plants(Rr) are self-pollinated. The probability of the off springs to have white flowers are

• 25%

• 50%

• 75%

• 2.5%

• 2.5%

In a polynucleotide chain of a DNA molecule, the two nucleotides are linked through

• hydrogen bonds

• 5' – 3' phosphoester linkage

• 3' – 5' phosphodiester linkage

• N-glycosidic linkage

• N-glycosidic linkage