STD 12 - 7. human health and disease — NEET STD 11 Science — Question

Which one of the following sets of structure includes only analogous organs

Which of the following is responsible for excretion of dilute urine?

Given below are four statements pertaining to separation of DNA fragments using Gel electrophoresis. Identify the incorrect statements.
(a) DNA is negatively charged molecule and so it is loaded on gel towards the Anode terminal.
(b) DNA fragments travel along the surface of the gel whose concentration does not affect movement of DNA.
(c) Smaller the size of DNA fragment, larger is the distance it travels through it.
(d) Pure DNA can be visualized directly by exposing to UV radiation.
Choose correct answer from the options given below:

A portal system is a system in which

Pineal gland of human brain secretes melatonin concerned with

During forced expiration, actively contracting muscles include the

Graafian follicle gets converted into _______ after ovulation under the effect of _______.