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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mRNA strand is shorter and single stranded
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mRNA strand is longer and single stranded
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mRNA strand is shorter and double stranded
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mRNA strand is longer and double stranded
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Detailed explanation-1: -It acts as a medium for long-term storage. RNA is critical for the transmission of the genetic code that is necessary for protein creation from the nucleus to the ribosome. DNA is a double-stranded molecule that has a long chain of nucleotides. RNA is a single-stranded molecule which has a shorter chain of nucleotides.
Detailed explanation-2: -In addition, because they are copied from only a limited region of the DNA, RNA molecules are much shorter than DNA molecules. A DNA molecule in a human chromosome can be up to 250 million nucleotide-pairs long; in contrast, most RNAs are no more than a few thousand nucleotides long, and many are considerably shorter.
Detailed explanation-3: -Physically, mRNA is a strand of nucleotides known as ribonucleic acid, and is single-stranded.
Detailed explanation-4: -Messenger RNA (abbreviated mRNA) is a type of single-stranded RNA involved in protein synthesis. mRNA is made from a DNA template during the process of transcription.
Detailed explanation-5: -DNA has thymine as one of the two pyrimidines while mRNA has uracil as its pyrimidines base. DNA is present in the nucleus while mRNA diffuses into the cytoplasm after synthesis. DNA is double-stranded while mRNA is single-stranded. mRNA is short-lived while DNA has a long lifespan.