161.

Which of the following options consist of nonessential amino acids only

• Valine, leucine, glycine, alanine

• Glycine, serine, proline, glutamic acid

• Proline, aspartic acid, glutamic acid, methionine

• Cysteine, tyrosine, alanine, isoleucine

Photochemical smog formed in congested metropolitan cities mainly consists of

• ozone, peroxyacyl nitrate and NO_x

• smoke, peroxyacyl nitrate and SO₂

• hydrocarbons, SO₂ and CO₂

• hydrocarbons, ozone and SO₂

Assertion: There are 34 biodiversity hotspots in the world.

Reason: High level of species richness is a criteria for selection of a biodiversity hotspot.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false

Assertion :Now-a-days, the biodiversity is declining with an accelerated rate.

Reason : Exotic species are considered to be a major cause of extinction of species.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are hue but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.

Which of the following has highest diversity in India?

• Mango

• Dolphin

• Tiger

• Orchids

Which of the following is best method of germplasm conservation

• Herbarium

• Botanical garden

• Seed bank

• Zoological park

Assertion: A mangrove tree growing in marshy place has pneumatophores.

Reason: Pneumatophores help in better anchorage to marshy soil.

• If both assertion and reason are true and reason is the correct explanation of assertion

• If both assertion and reason are true but reason is not the correct explanation of assertion

• If assertion is true but reason is false

• If both assertion and reason are false.

Beta diversity is diversity

• in a community

• between communities

• in a mountain gradient

• on a plain

Which one of the following pairs of geographical areas show maximum biodiversity in our country?

• Sunderbans and Rann of Kutch

• Eastern Ghats and West Bengal

• Eastern Himalaya and Western Ghats

• Kerala and Punjab

One of the ex situ conservation methods for endangered species is

• wildlife sanctuaries

• biosphere reserves

• cryopreservation

• national parks