Answer :
Explanation:
I wud guess, answer is A.... mostly due 2 chromosonals in DNA..
Gene expression is responsible for the difference in forming a hindlimb. Thus option A is correct.
What is gene expression ?
Gene expression is the process by which the genetic code of a gene used for the synthesis of protein product.
The steps include conversion of DNA into RNA which in turn is converted into a protein,.
Genes primarily code necessary information in the form of transfer RNAs and ribosomal RNAs.
There are two stages involved such as Transcription involve the production of messenger RNA (mRNA) in presence of enzyme RNA polymerase.
Translation involve the use of mRNA to protein synthesis, followed by subsequent post-translational processing.
Thus option A is correct.
Learn more about gene expression, here:
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