THE MOLECULAR BASIS OF INHERITANCE
STRUCTURE OF NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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mRNA is small enough to fit through nuclear pores.
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DNA is too big to fit through nuclear pores
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There’s too much information in an entire DNA molecule.
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All of these are correct.
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Detailed explanation-1: -mRNA is the form of RNA which helps in encoding the message coming from the DNA to form proteins. Then it transports the gathered data into the cell where proteins are assembled and generated. So, for these reasons RNA necessary to act as a messenger.
Detailed explanation-2: -Using RNA as a messenger allows the DNA to stay whole, instead of having to break off into individual pieces every time a protein needs to be made. When a protein is needed, a piece of RNA is quickly made and sent off to the ribosome. This process also protects the DNA.
Detailed explanation-3: -RNA also serves as the primary genetic material for viruses. Other functions include RNA editing, gene regulation, and RNA interference.
Detailed explanation-4: -Why is RNA necessary to act as a messenger? (Why can’t the code be taken directly from DNA?) RNA acts like a messenger because it transfers the codes for the DNA because DNA is too big to fit through the nuclear pores.
Detailed explanation-5: -RNA carries out a broad range of functions, from translating genetic information into the molecular machines and structures of the cell to regulating the activity of genes during development, cellular differentiation, and changing environments.