Alkylating agents are electrophilic chemicals which readily add alkyl groups to various positions on nucleic acids. A common example is:

#Question id: 10906

#I Life Science/ Life Sciences Group – I-V

The pressure-flow model explains phloem translocation as a flow of solution (bulk flow) driven by an osmotically generated pressure gradient between source and sink.

a) Phloem translocation, both active and passive mechanisms were considered. All theories, both active and passive, assume an energy requirement in both sources and sinks.

b) In sources, energy is necessary to move photosynthate from producing cells into the sieve elements. This movement of photosynthate is called phloem loading.

c) In sinks, energy is essential for some aspects of movement from sieve elements to sink cells, which store or metabolize the sugar. This movement of photosynthate from sieve elements to sink cells is called phloem unloading.

d) The Active mechanisms of phloem transport further assume that energy is required in the sieve elements of the path between sources and sinks simply to maintain structures.

From the given statements find out the correct for pressure-flow model.

#Question id: 12931

#SCPH06 I Botany

#Question id: 2633

#SCPH28 | Zoology

In trp operon leader peptide has Which one is incorrect.

#Question id: 2079

#I Life Science/ Life Sciences Group – I-V

According to the fluid mosaic model of membrane structure, proteins of the membrane are mostly

#Question id: 2732

#SCPH05 I Biotechnology

DNA is an important therapeutic target for the intercalating agent class of drugs. These drugs work by: