Biology Test - ...

Percentage of energy that can be transferred to a herbivore after feeding on green plants is:

When the movement of plant organ is stimulated by contact with an object, it is termed as:

People have problems walking straight and driving when they have too many alcoholic drinks. In this condition, which part of their brain is affected?

DNA is composed of repeating units of:

What does it mean that a cell is polyploid?

Which of the following hormones does NOT belong to the reproductive system?

Anita met with an accident and became very poor in grammar and pronunciation. Which part of her brain must have been affected in the accident?

Which of the following pairs of 'pulse : its botanical name' is not correctly matched?

Approximately how much amount of water lost by plants due to transpiration and guttation?

In a strain of E. coli, a fusion between the lac and trp operon took place and the new locus structure is shown below. The strain lacks the wild - type trp operon.

Given below are some of the potential scenarios:

A. Tryptophan will be synthesized in a medium containing lactose and tryptophan.

B. Tryptophan synthesis will be repressed in a medium containing glucose.

C. Tryptophan synthesis will take place only in the absence of sufficient tryptophan in the medium.