Which among the following is the full form of RNA?

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JKSSB SI Official Paper (Held On: 11 Dec 2022 Shift 1)
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  1. red blood corpuscles
  2. ribosomes
  3. ribonucleic acid
  4. none of these

Answer (Detailed Solution Below)

Option 3 : ribonucleic acid
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Detailed Solution

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The Correct answer is ribonucleic acid.

Key Points

  • Ribonucleic Acid (RNA) is a crucial molecule involved in various biological roles, including coding, decoding, regulation, and expression of genes.
  • RNA is made up of a long chain of nucleotides, each consisting of a nitrogenous base, a ribose sugar, and a phosphate group.
  • There are several types of RNA, including messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA), each with distinct functions in the cell.
  • mRNA carries the genetic information copied from DNA in the form of a series of three-base code "words," each specifying a particular amino acid.
  • tRNA is the key to decoding the mRNA sequence into a protein. It functions at specific sites in the ribosome during translation.
  • rRNA is a component of ribosomes, which are the protein synthesis machinery in the cell.
  • RNA is single-stranded, unlike DNA, which is double-stranded. This single-stranded nature allows RNA to fold into complex three-dimensional shapes.

 Additional Information

  • Red blood corpuscles
    • Red blood corpuscles (RBCs), also known as erythrocytes, are cells that carry oxygen from the lungs to the rest of the body and bring carbon dioxide back to the lungs for exhalation.
    • RBCs contain a protein called hemoglobin, which binds oxygen. Their unique biconcave shape increases the cell's surface area and facilitates the exchange of oxygen and carbon dioxide.
  • Ribosomes
    • Ribosomes are the molecular machines in the cell that synthesize proteins. They read the sequence of the mRNA and translate it into the amino acid sequence of a protein.
    • Ribosomes can be found floating freely in the cytoplasm or attached to the endoplasmic reticulum, forming rough ER.
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