Assertion: Notochord is a mesodermally derive | vedclass

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Question

(A) The Assertion is true because the notochord is indeed a mesodermally derived,rod-like structure that develops on the dorsal side during the embryo

Vedclass · Accepted Answer

Both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.

Vedclass · Answer

(A) The Assertion is true because the notochord is indeed a mesodermally derived,rod-like structure that develops on the dorsal side during the embryonic stage of all chordates.The Reason is also true because,in vertebrates,the notochord is replaced by a cartilaginous or bony vertebral column in the adult stage.Since the presence of the notochord (which is later replaced by the vertebral column) is a defining characteristic that distinguishes vertebrates from other chordates,the Reason correctly explains the nature and fate of the notochord in vertebrates.

Assertion: Notochord is a mesodermally derived rod-like structure formed on the dorsal side during embryonic development of chordates.
Reason: Notochord is replaced by the vertebral column in the adult vertebrate.

Similar Questions

The group $Amniota$ includes:

$A:$ Amphioxus is not a vertebrate.
$R:$ Amphioxus is not a chordate.

Which one of the following is not a characteristic feature of all the chordates?

Which of the following is $NOT$ found in vertebrates?

What is the basis of classification of $Protochordata$?

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Assertion: Notochord is a mesodermally derived rod-like structure formed on the dorsal side during embryonic development of chordates.Reason: Notochord is replaced by the vertebral column in the adult vertebrate.