Q:2 (a) Read the following paragraph given below. Correct and rewrite both the bold underline sentences in the paragraph. Paragraph: The root belongs to tap-root system or adventitious-root system does not show the same different regions. The regions or zones of a root are best deliberate from the base of a rootlet. As the root remains beneath the soil and it is not easy to get the fine root endings of large plants, it is easier to study the zones from germinating seed. (b) Read the following paragraph given below. What is the topic of discussion in this paragraph? Paragraph: In some plants one or more short, green, cylindrical or sometimes flattened branches of limited growth develop from the node of the stem or branch in the axils of a scale leaf. Here the branch is cylindrical and consists of one internodes only.
Nucleotides
It is an organic molecule made up of three basic components- a nitrogenous base, phosphate,and pentose sugar. The nucleotides are important for metabolic reactions andthe formation of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).
Nucleic Acids
Nucleic acids are essential biomolecules present in prokaryotic and eukaryotic cells and viruses. They carry the genetic information for the synthesis of proteins and cellular replication. The nucleic acids are of two types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The structure of all proteins and ultimately every biomolecule and cellular component is a product of information encoded in the sequence of nucleic acids. Parts of a DNA molecule containing the information needed to synthesize a protein or an RNA are genes. Nucleic acids can store and transmit genetic information from one generation to the next, fundamental to any life form.
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