Assertion [A]: Evolution is a continuous process that takes millions of years for speciation.
Reason [R]: During evolution, only mutation leads to speciation.

Both assertion and reason are incorrect

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

Only assertion is correct

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

The assertion is correct and reason explains the assertion

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

Both assertion and reason are correct

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

Open in App

Solution

The correct option is B Only assertion is correct
Evolution is a slow and continuous process that takes a very long time to form a new species. Variations in species are caused not only by mutations but, can also arise due to natural selection. Mutation is the random change in an organism's genetic makeup which influences the population. Organisms that are better adapted to their environment tend to survive longer and transmit more of their genetic characteristics to succeeding generations than do those that are less well adapted, and this process is called natural selection.

Suggest Corrections

Similar questions

Assertion (A) All collision of reactant molecules lead to product formation.

Reason (R) Only those collisions in which molecules have correct orientation and sufficient kinetic energy lead to compound formation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Assertion (A) Most of the synthetic polymers are not biodegradable.

Reason (R) Polymerisation process induces toxic character in organic molecules.

(a) Assertion and Reason both are correct statement But reason does not explain Assertion.

(b) Assertion and Reason both are correct statement and Reason explains the Assertion.

(d) Assertion is correct statement and Reason is wrong statement.

(e) Assertion is wrong statement and reason is correct statement.

Assertion and Reason
In the following questions a statement of assertion (A) followed by a statement reason (R) is given. Choose the correct answer out of the following choice..
(a) Assertion and reason both are correct statements but reason does not explain assertion.
(b) Assertion and reason both are correct and reason explains asssWon.
(c) Both assertion and reason are Wrong statements.
(d) Assertion is correct statement reason is wrong statement.
(e) Assertion is wrong statement reason is correct statement.

Assertion (A) Receptors are crucial to body's communication process.
Reason (R) Receptors are proteins.

Assertion (A) For making rubber synthetically, isoprene molecules are polymerised.

Reason (R) Neoprene (a polymer of chloroprene) is a synthetic rubber.

(a) Assertion and Reason both are correct statement But reason does not explain Assertion.

(b) Assertion and Reason both are correct statement and Reason explains the Assertion.

(d) Assertion is correct statement and Reason is wrong statement.

(e) Assertion is wrong statement and reason is correct statement.

Assertion (A) Network polymers are thermosetting.

Reason (R) Network polymers have high molecular mass.

(a) Assertion and Reason both are correct statement But reason does not explain Assertion.

(b) Assertion and Reason both are correct statement and Reason explains the Assertion.

(d) Assertion is correct statement and Reason is wrong statement.

(e) Assertion is wrong statement and reason is correct statement.

Join BYJU'S Learning Program

Assertion [A]: Evolution is a continuous process that takes millions of years for speciation. Reason [R]: During evolution, only mutation leads to speciation.

Assertion [A]: Evolution is a continuous process that takes millions of years for speciation.
Reason [R]: During evolution, only mutation leads to speciation.