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NEET Biology Solved Question Paper 2007

Multiple Choice Questions

31.
Which ofthe following is not true for a species?

Members of a species can interbreed

Variations occurs among members of a species

Each species is reproductively isolated from every other species

Gene flow does not occur between the populations of a species

Gene flow does not occur between the populations of a species

Gene flow means the spread of genes through populations as affected by movements of
individual and their propagules e.g., spores, seeds etc. It ensures that all populations of a given species share a common gene pool i.e., it reduces difference between populations. The interruption of gene flow between populations is a pre-requisite for the formation of new species.

32.

One of the most important functions of botanical gardens is that

one can observe tropical plants there
they allow ex situ conservation of germplasm
they provide the natural habitat for wild life
they provide a beautiful area for recreation

33.

During which stage in the complete oxidation of glucose are the greatest number of ATP molecules formed from ADP?

Conversion of pyruvic acid to acetyl Co-A
Electron transport chain
Glycolysis
Krebs cycle

34.

Ectophloic siphonostele is found in

Adiantum and Cucurbitaceae
Osmunda and Equisetum
Marsilea and Botrychium
Dicksonia and maiden hair fem

35.

Which of the following represents the edible part of the fruit of litchi?

Pericarp
Mesocarp
Juicy aril
Endocarp

36.

Carbohydrates, the most abundant biomolecules on earth, are produced by:

all bacteria, fungi and algae
fungi, algae and green plant cells
some bacteria, algae and green plant cells
viruses, fungi and bacteria

37.

The deficiencies of micro-nutrients, not only affects growth of plants but also vital functions such as photosynthetic and mitochondrial electron flow. Among the list given below, which group of three elements shall affect most, both photosynthetic and mitochondrial electron transport ?