DNA, RNA, Karyotypes & Protein synthesis

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In the double helix shape of the DNA molecule, the rungs of the ladder are made of:

• Nitrogen Bases
• Dexyribonucleic acid
• phosphate groups
• amino acids

mRNA nucleotides (codons) are translated (decoded) into a

• sequence of DNA nucleotides
• sequence of amino acids
• sequence of proteins
• sequence of anticodons

Which of the following is NOT a possible base in DNA?

• Adenine
• Guanine
• Tyrosine
• Uracil

Where in a eukaryotic cell does Transcription of DNA to mRNA occur?

• ribosomes
• cytoplasm
• nucleus
• Rough ER

Transcribe this sequence of DNA, "AAA TTT CGC", into mRNA:

• TTT AAA GCG
• TTT UUU GCG
• UUU TTT GCG
• UUU AAA GCG

Translate the mRNA, "UUU AAA GCG" into amino acids.

• Phe - Gly - Arg
• Phe - Lys - Ala
• Ala - Lys - Phe
• Arg - Gly - Phe

Which of the following is a STOP codon?

• UGG
• UCA
• UUA
• UAG