A: Production of hirudin from transgenic Bras | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The assertion is correct because hirudin is an anticoagulant protein originally found in leeches. When scientists attempted to produce it in trans

Vedclass · Accepted Answer

Assertion and Reason both are correct and Reason is the correct explanation of Assertion.

Vedclass · Answer

(A) The assertion is correct because hirudin is an anticoagulant protein originally found in leeches. When scientists attempted to produce it in transgenic $Brassica$ (mustard) plants,they used a synthetic gene because the natural eukaryotic gene contains introns.The reason is also correct because eukaryotic genes contain non-coding sequences called introns,which must be removed (spliced) to produce functional mRNA. Bacteria and many plant expression systems cannot efficiently process these introns. Therefore,to express the protein in $Brassica$,a synthetic gene (cDNA) lacking introns was designed and inserted.Since the presence of introns in the natural gene is the specific reason why a synthetic gene was required for successful expression,the Reason correctly explains the Assertion.

$A$: Production of hirudin from transgenic $Brassica$ required the use of a synthetic gene.
$R$: Eukaryotic genes have intron sequences that need to be spliced out.

Similar Questions

$Bacillus$ $thuringiensis$ is a bacterium of

Which herbicide is derived from urea and is used for weed control in tea,cotton,and tobacco crops?

Tobacco plants resistant to a nematode have been developed by the introduction of $DNA$ that produces (in the host cells):

In $Bt$ cotton,the $Bt$ toxin present in plant tissue as protoxin is converted into active toxin due to

Vedclass Test Series

Exam Paper Generator

Online Exam Module

$A$: Production of hirudin from transgenic $Brassica$ required the use of a synthetic gene.$R$: Eukaryotic genes have intron sequences that need to be spliced out.