THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a single-stranded molecule of mRNA
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a double-stranded molecule of DNA
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a chain of amino acids
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a single-stranded molecule of tRNA
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Detailed explanation-1: -The end product of transcription is RNA, a single-stranded molecule made up of RNA nucleotides. The three main types of RNA produced in the transcription are mRNA, tRNA, and rRNA.
Detailed explanation-2: -The end result is a polypeptide whose amino acid sequence mirrors the sequence of codons in the mRNA.
Detailed explanation-3: -What is the end product of transcription? An RNA transcript is obtained as an end product of transcription. It can form any type of RNA such as rRNA, mRNA, non-coding RNA and tRNA. The prokaryotes form a polycistronic mRNA whereas eukaryotes form a monocistronic mRNA.
Detailed explanation-4: -DNA transcription produces a single-stranded RNA molecule that is complementary to one strand of DNA. Transcription, however, differs from DNA replication in several crucial ways. Unlike a newly formed DNA strand, the RNA strand does not remain hydrogen-bonded to the DNA template strand.
Detailed explanation-5: -In some cases, the RNA molecule itself is a “finished product” that serves some important function within the cell. Often, however, transcription of an RNA molecule is followed by a translation step, which ultimately results in the production of a protein molecule.