In mammals, which blood vassel would normally carry largest amount of urea?

A decrease in blood pressure/volume will not cause the release of

The part of nephron involved in active in reabsorption of sodium is

In the modern periodic table, the elements are arranged in order of increasing:

Select the correct statement

Blood pressure in the pulmonary artery is

The most abundant intracellular cation is

Erythropoiesis starts in

Which of the following is associated with decrease in cardiac output?

The hepatic portal vein drains blood to liver from

Assertion = Green revolution succeded in tripling of food supply

Reason = use of better management ptractice and use of agrochemical like fertilliser and pesticide

When will the population density increase, under special conditions?
When the number of:

Statement I: In eukaryotes there are three RNA polymerases in the nucleus in addition to the RNA polymerase found in the organelles.
Statement II: All the three RNA polymerases in eukaryotic nucleus have different roles.

The structures that are formed by stacking of organized flattened membranous sacs in the chloroplast are

The chromosomes in which centromere are situated close to one end are

The stage during which separation of the paired homologous chromosomes begins is

When cell has stalled DNA replication fork , which checkpoint should be predominantly activated?