Which of the following is not a reason that humans genetically engineer trees?

a.
insect resistance

b.
pharmaceutical production

c.
faster growth

d.
none of the above

Correct D). None of the above

Genetically engineered trees are the transgenic tree whose DNA has been altered or modified by the use of genetic engineering techniques.

The main aim is to provide insect resistance, pest resistance and herbicide tolerance plant in order to get high yield.

Example : Eucalyptus, Which are known for its medicinal properties.

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.