Home
Class 12
BIOLOGY
Assertion : SCID is a primary immunodefi...

Assertion : SCID is a primary immunodeficiency.
Reason : It is a serious congenital immunodeficiency.

A

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C

If the assertion is true but the reason is false

D

If both the assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
A

Severe combined immunodeficiency is a rare genetic disorder characterised by the disturbed development of T and B cells. It is the most severe form of primary immunodeficiency in which part of the body’s immune system is missing or does not function properly.
Promotional Banner

Similar Questions

Explore conceptually related problems

Why is SCID called primary immunodeficiency?

Immunodeficiency can result from

Human immunodeficiency virus is a/an

Why is AIDS called secondary immunodeficiency?

Acquired immunodeficiency syndrome (AIDS) is

The human immunodeficiency virus is a/an:

Immuno - deficiencies are the diseases which occur due to impaired immune responses. These immuno - deficiencies may be primary or secondary. AIDS is a secondary immunodeficiency caused by a retrovirus Human Immunodeficiency Virus (HIV). Following diagram is that of HIV. Observe the diagram and answer the questions listed below the diagram : (i) State one difference primary immunodeficiency and secondary immunodeficiency. (ii) Why is HIV called a retrovirus? (iii) Identify the parts of the diagram labelled as A and B.

Someone with severe combined immunodeficiency has no