Assertion: Ribosomes are considered as the most primitive cell organelles. Reason: Ribosomes do not occur in all prokaryotic organisms.

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

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

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!

Assertion is true but Reason is false

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

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 C Assertion is true but Reason is false
The ribosomes occur in all cells both prokaryotic and eukaryotic cells with the exception of the mammalian RBCs. In prokaryotes, the ribosomes occur freely in the cytoplasm. In eukaryotic cells, the ribosomes either occur freely in the cytoplasm or remain attached to the outer surfaces of the endoplasmic reticulum and nuclear envelope. Ribosomes are considered as the primitive cell organelles.

Suggest Corrections

Similar questions

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

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.

Assertion: In rolling a dice, event A = {1, 3, 5} and event B = {2, 4} are mutually exclusive events.
Reason: In a sample space, two events are mutually exclusive if they do not occur at the same time.

Assertion : In rolling a die, event A = {1, 3, 5} and event B = {2, 4} are mutually exclusive events.
Reason : In a sample space two events are mutually exclusive if they do not occur at the same time.

Q. Given below is assertion and reason.
A. Both assertion and reason are true with reason being the correct explanation
B. Both assertion and reason are true but reason not correct explanation
C. Assertion is true, but reason is wrong
D. Both assertion and reason are wrong

Assertion: Shigella species, E.coli and Salmonella species are all known to be the causes of diarrhoeal diseases.
Reason: Shigella, E.coli and Salmonella are intestinal parasites.

Join BYJU'S Learning Program