test quizizz

Why wont you get a stop codon if the prompt gives you anticodons?

• the anticodons for stop codons don't exist for the tRNA found in cells, which is why the growing chain of amino acids is cut loose from the ribosomal complex
• there probably was a stop codon, but it was in the mRNA that wasn't given
• there was a insertion/deletion that caused a frameshift, so the stop codon was never "read"

which base is a purine?

• left
• right

which base is a pyrimidine?

• left
• right

how many H-bonds are holding the 2 bases together?

• 1
• 2
• 3
• 4

how many H-bonds are holding the 2 bases together?

• 1
• 2
• 3
• 4

which base pair is shown in the picture? (be careful, order is important here!)

• A=T
• G=C
• T=A
• C=G

which base pair is shown in the picture? (be careful, order is important here!)

• A=T
• C=G
• G=C
• T=A

12% of the bases in a strand of DNA are T. What percentage would be C?

• 12%
• 38%
• 50%
• 66%

27% of the bases in a strand of DNA are G. What percentage would be C?

• 23%
• 27%
• 46%
• 50%

DNA helicase

• coding part of an mRNA sequence
• unzips the double helix of DNA so that replication can occur
• noncoding sequence in mRNA that is cut out in processing