Assertion :
Atavism is the reappearance of disappeared ancestral characters.
Reason: Third molars and hair on body are examples of atavism.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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

Assertion is correct but Reason is incorrect

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

Both Assertion and Reason are incorrect

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

Open in App

Solution

The correct option is C Assertion is correct but Reason is incorrect
Atavism is the reappearance of an ancestral character that has been lost during the process of evolution. For example, humans lost their tails during evolution, but may appear in the human progeny of today. However, the third molars also called the wisdom teeth and hair are not lost they appear late in the lifetime (third molars) or decrease in density (hair), as their utility has been decreased. Therefore they can be termed as vestigial, which probably may be lost in near future.
So, the correct answer is 'Assertion is correct but Reason is incorrect'

Suggest Corrections

Similar questions

H_{2}

H e

(1 + \frac{P b}{R T})

H_{2}

H e

Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

Reason: $C a C O_{3}$ which decomposes into $C a O$ and $C O_{2}$ . The $C a O$ formed reacts with $S i O_{2}$ to remove silica

Assertion: All the points (1, 0), (-1, 0), (2, 0) and (5, 0) lie on the x – axis.
Reason: Equation of the x-axis is y = 0

Choose the correct option.

ASSERTION: n-Pentane and n-Hexane belong to a homologous series.

REASON: n-Pentane and n-Hexane belong to the same class of hydrocarbons and they differ by a - $C H_{2}$ - group.

{2n}^{2}

Join BYJU'S Learning Program