D. All of the above 28 Which RNA has coding regions A 10 A TRNA B. IRNA C mRNA D

Question

D. All of the above 28 Which RNA has coding regions A 10 A TRNA B. IRNA C mRNA D. All ofthe above what site of ribosomes does "peptide-bond" formation take place? C 100 1012 s. Primer in DNA replication is made up of the following 9 At A DNA B. RNA C Protein D. Lipid 30 What is Stop codon? 20 How many consensus bases long is yeast B. UAG ?.UGA D. All of the above E. AUG Autonomously Repeating Sequences (ARSs)? C 96 D. 121 1 What is Start codon? ?.UAA B. UAG C. UGA D. All of the above E. AUG 21 Where in bacteria is chromosome located? A Nucleus D. Chromatin 32 Many amino acids are specified by more than one 22 Uncoliled region of polytene chromosome is known as B. Telomere C Puff region D. Centriole region codon is known as A. Affirmative B. Reverse transcription C. Degenerate 33 How many genes are found on phage genome? 3 In salivary gland of what organism is, "polytene chromosome found? A Mouse B. Frog 34 What works as adapter molecule in translation A. Ribosome B. fRNA D. Escherichia coll How much (in percent) of total DNA is made up of the highly & moderately repetitive' part in eukaryotic DNA? D. mRNA 35. Tertiary structure for IRNA is known as A, Linear B. Cloverleaf MODEL C. Pseudodyad model D. 78 What chemical modifications is/are considered mportant for genetics function? 36. How many possible codons to 20 amino-acids? B. Methylation 37. Charge tRINA contains: Lampbrush chromosomes are readily found in A. Bacteria B. Viruses C. Vertebrate oocyle A. Positive charge B. Negative charge D. Amino acid A. Lysine 38. Usually the first amino-acids in a polypeptide is: A Cut DNS at one or both ends

Explanation / Answer

19. Option B is correct.
Primase is a DNA dependent RNA polymerase. It synthesizes an RNA primer on the template DNA during replication.

20. Option B is correct.
Minimum ARS size = 11 bases

21. Option C is correct.
Bacterial chromosome = Nucleoid

22. Option C is correct.
The uncoiled region of the polytene chromosome is known as the puff region.

23. Option C is correct.
Polytene chromosomes are found in the salivary glands of Drosophila.

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