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

In which region the lymphatic system and blood circulatory system meet

Which of the following is both exo and endocrine gland

Corpus luteum is a mass of cells found in

Which of the following organ receives electrical messages from the brain for breathing in and out?

Right atrium or auricle in mammalian heart receives blood from

Rate and depth of respiration shall increase when

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 colour blind man marries a woman with normal sight who has no history of colour blindness in her family. What is the probability of their grandson being colour blind ?

Statement I: Emphysema is a acute disorder in which alveolar walls are damaged due to which respiratory surface is decreased.
Statement II: Cigarette smoking is major cause of emphysema.