Biology

A biologist studied the population of rats in a barn

A biologist studied the population of rats in a barn. He found that the average natality was 250, average mortality…

During the transmission of nerve impulse through a nerve fibre

During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane…

Which one of the following is the correct difference between Rod Cells

Which one of the following is the correct difference between Rod Cells and Cone Cells of our retina? Options (a)…

Cornea transplant in humans is almost never rejected. This is because

Cornea transplant in humans is almost never rejected. This is because Options (a) Its cells are least penetrable  by bacteria…

Which of the following is an example of negative feedback loop in humans?

Which of the following is an example of negative feedback loop in humans? Options (a) Secretion of tears after falling…

During the propagation of a nerve impulse, the action potential results from

During the propagation of a nerve impulse, the action potential results from the movement of? Options (a) K⁺ ions from…

When a neuron is in resting state I not conducting any impulse, the axonal membrane is:

When a neuron is in resting state I not conducting any impulse, the axonal membrane is: Options (a) comparatively more…

A person entering an empty room suddenly finds a snake right in front on opening the door

A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of…

In the DNA molecule

In the DNA molecule Options (a) the total amount of purine nucleotides and pyrimidine nucleotides is not always equal (b)…

What is not true for genetic code?

What is not true for genetic code? Options (a) It is nearly universal (b) It is degenerate (c) It is…