Assertion: Seeds of commercially important plants are preserved for long periods in Gene banks. Reason: Gene bank is a conservation option for rare seeds.

Assertion : Wild varieties of crop plants must ne conserved. Reason : Genome of wild plants serve as important resources for selection of desired genes like genes for pest resistance.

Assertion (A) : Liquid nitrogen is used in cryopreservation techniques. Reason (R ) : Gene bank DNA bank are the parts of germplasm conservation.

Assertion : Kinetin is found naturally in plants. Reason : Cytokinin breaks seed and bud dormancy.

Fill in the blanks : In a Cryo bank, the seeds are preserved in …………. .

Assertion: Gene bank is a typeofbiorepository of genetic materials. Reason: The genetic materials can be retrieved to revive endangered / threatened species.

Assertion : One of the most important traditional uses of sacred groves was that they acted as a repository for various ayurvediv medicines. Reason : In modern times , sacred groves have become biodiversity rich areas, as they provide refuge to various plant and animal species of conservation significance. (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c) If assertion is true but reason is false. (d) If both assertion and reason are false.

Assertion: Mitochondrial and chloroplast inheritance is not through nuclear gene. Reason: During fertilization, the female plant contributes cytoplasmic gene. The male plant contributes nuclear and not cytoplasm.

Assertion : Transgenic plants having virus coat protein gene, express resistance to that virus and other related varieties Reason : Coat protein gene interferes with uncoating of viruses inside the plant cells.

Assertion: Genes can exist in alternate forms. Reason: Allele for the height of pea plant is expressed as Tall (T) and Dwarf (t).