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Magazine Problem 1
DNA contains many different gene regions that are transcribed into different _____. a. proteins b. mRNAs only c. mRNAs, tRNAs, rRNAs d. all of the above
Problem 2
An RNA molecule is typically _____. a. a double helix b. single-stranded c. double-stranded d. trinle-stranded
Problem 3
An mRNA molecule is assembled by _____. a. replication b. duplication c. transcription d. translation
Problem 4
_____ remain in new mRNA transcripts. a. Introns b. Exons c. Telomeres d. Amino acids
Problem 5
Each codon specifies a(n) _____. a. protein b. polypeptide c. amino acid d. mRNA
Problem 6
Each amino acid is specified by a set of _____ bases in an mRNA transcript. a. 3 b. 20 c. 64 d. 120
Problem 7
_____ different codons constitute the genetic code. a. 3 b. 20 c. 64 d. 120
Problem 8
Anticodons pair with _____ . a. mRNA codons b. DNA codons d. Non-ionizing radiation e. b and c are correct f. all of the above
Problem 9
_____ can cause mutations. a. Replication errors b. Transposons c. Ionizing radiation d. Non-ionizing radiation e. \(b\) and \(c\) are correct \(f\). all of the above
Problem 10
Match the terms with the most suitable description. a. protein-coding regions of mRNA b. base triplet in mRNA c. second stage of translation d. base triplet; pairs with codon e. chemicals that can induce mutation in DNA f. set of 64 codons g. noncoding part of mRNA transcript, removed before translation cigarette smoke _____ chain elongation _____ exons ____ genetic code _____ anticodon _____ introns _____ codon _____
