CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Innate Immunity

Assertion: Ig...

Question

Assertion: IgM is a type of immunoglobulin which cannot cross the placenta.

Reason: IgM is pentamer immunoglobulin, joined by J-chain.

A

Both assertion and reason are true and reason is the correct explanation of assertion

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

Both assertion and reason are true but reason is not the correct explanation of assertion

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Assertion is true but reason is false

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

Both assertion and reason are false

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Both assertion and reason are true and reason is the correct explanation of assertion
IgM is pentamer immunoglobulin, joined by J-chain which is also the largest immunoglobulin. IgM cannot cross the placenta from the mother to the foetus. The immunoglobulin which can pass through placenta is IgG which is the smallest immunoglobulin.

Suggest Corrections

thumbs-up

0

Similar questions

Q. (i)
Assertion: A circle is not a rectilinear figure.
Reason: A figure formed by straight lines only is called a rectilinear figure.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.
(ii)
Assertion: All right angles are equal to one another.
Reason: A unique line passes through a single point.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.

Q. Assertion : Amount of cyanocobalamine required daily is 3 mcg
Reason : Its deficiency causes pernicious anaemia

Q. Assertion: 3 + 7 = 9 is a statement.
Reason: A sentence that can be judged to be true or false, but not both, is called a statement.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.

Q. Assertion: Every parallelogram is a rectangle.
Reason: The angle bisectors of a parallelogram form a rectangle.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.

Q. Assertion: A cyclic parallelogram is a square.
Reason: Diameter is the largest chord in a circle.
(a) Both Assertion and Reason are true and Reason is a correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not a correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Immunity - Basics

BIOLOGY

Watch in App

explore_more_icon

Explore more

Innate Immunity

Standard XII Biology

Join BYJU'S Learning Program

CrossIcon