MCQ
Nucleic acids are made up of:
- AAmino acids
- BPentose sugars
- CNucleosides
- DNucleotides
Explanation:
Nucleic acids are long chain polymers of nucleotides.
The nucleotides, in turn, are phosphoric acid esters of nucleosides which mainly consists of a nitrogenous base, Sugar, and phosphate.
The nitrogenous base includes purines and pyrimidines while the sugar contains ribose and deoxyribose sugar. phosphate is formed of phosphoric acid.
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($i$) It consists of a series of fused segmentally arranged ganglia joined by paired longitudinal connectives on the ventral side.
($ii$) There are six ganglia lie in the thorax, and three in the abdomen.
($iii$) The sense organs are antennae, eyes, maxillary pulps, labial pulps and anal cerci etc.
($iv$) Each eye consists of about $5000$ hexagonal ommatidia.