14 AP Biology Central dogma of genetics and mutations

What is the corresponding mRNA codon for the DNA triplet AGT found on the template strand?

• UCA

• TCA

• UGA

• ACU

RNA polymerase moves in which direction along the DNA?

• 5' to 3' 
• 3' to 5' along the template strand
• 3' to 5' along nontemplate(coding) strand
• 5' to 3' along the template strand

What is the anticodon on the tRNA that binds to the mRNA codon AAA?

• TTT
• UUU
• UUA
• AAA

What is the effect of a nucleotide-pair substitution that results in a nonsense mutation in a gene?

• it changes an amino acid in the encoded protein
• It has no effect on the amino acid sequence of the encoded protein
• it introduces  premature stop codon into the mRNA
• it alters the reading frame of the mRNA

Tags

NGSS.HS-LS3-2

Which of the following is a possible sequence of nucleotides in a strand of mRNA that would code for the polypeptide sequence phe-leu-ile?

• 3'-UUU-CUU-AUU-5'

• 3'-AAC-GAC-GUC-5'

• 5'-UUU-CUU-AUU-3'

• 5'-AAA-GAA-TAA-3'

Tags

NGSS.HS-LS1-1

What amino acid sequence will be produced based on the mRNA codon sequence
5'-AUG-UCU-UCG-UUA-UCC-UUG-3'

• met-ser-leu-ser-leu-ser
• met-ser-ser-leu-ser-leu
• met-leu-phe-arg-glu-glu
• met-glu-arg-arg-glu-leu

Tags

NGSS.HS-LS1-6

What is a promoter?

• Sequence of DNA at the beginning of the gene that tells RNA polymerase where to start transcription.

• Sequence of RNA that tells the ribosome where to start translation.

• Sequence of DNA at the beginning of the gene that tells the ribosome where to start transcription

• Sequence of RNA that tells RNA polymerase where to start translation.

In RNA, uracil is complementary with ______.

• cytosine

• adenine

• guanine

• thymine

The anticodon of a particular tRNA molecule is ________.

• complementary to the corresponding mRNA codon.

• complementary to the corresponding triplet in rRNA.

• the part of tRNA that bonds with a specific amino acid.

• catalytic, making the tRNA a ribozyme.

The process that involves copying segment of DNA into mRNA is called _______?

• translation
• transcription
• replication