21. DNA coiled around 8 histones forms unit A) chromatin B) chromatid C) nucleos

Question

21. DNA coiled around 8 histones forms unit A) chromatin B) chromatid C) nucleosome D) chromosome 22. Unique N-base present in RNA is A) uracil B)cytosine C)thymine D) adenine 23. Alcohols and acids are joined by... bond A) peptide B) glycosidic C) ester D) diester 24. Cellulose is a polymer of A) a-glucose B) B-glucose C) amino acids D) acetviglucosamine 25. Motor proteins move vesicles on A) microtubule B) intermediate filament C) microfilament D) all of these 26. The arrangement of microtubules in eukaryotic flagella is A)9+2 B) 9+3 C)9+0 D) no microtubules

Explanation / Answer

Please find the answers below:

Answer 21: Choice C (nucleosome is an octamer of dimers of three histone proteins, H2A, H2B, H3 and H4)

Answer 22: Choice A (Uracil is uniquely found in RNA, whereas thymidine is found in DNA)

Answer 23: Choice C (Ester bond is formed between alcohols and acids, giving rise to sweet-smelling esters)

Answer 24: Choice A (Cellulose represents the largest and most abundantly found polymer of alpha glucose)

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