Central Dogma and Mutations

When an extra base is inserted into the DNA sequence of a gene, the protein doesn't work. Which explains why?

• the base increases rate of translation

• the base causes DNA to be transcribed in opposite direction

• the inserted base causes the codons in the sequence to be shifted and read differently

• the base signals enzymes to translate DNA rather than RNA

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

Genetic info flows in one direction. Which best represents this flow?

• DNA-protein-RNA
• Protein-RNA-DNA
• RNA-protein-DNA
• DNA-RNA-protein

Where does transcription take place?

• nucleus
• ribosome
• cytoplasm
• smooth ER

The anticodon is located on 

• DNA
• mRNA
• tRNA
• rRNA

The process to go from DNA to mRNA is _______

• translation
• transcription
• replication

What process is going on in this photo?

• Transcription

• Translation

• Replication

• All the above

Nitrogenous bases are joined by which type of bond?

• polar bonds
• ionic bonds
• covalent bonds
• hydrogen bonds

Tags

NGSS.HS-LS1-1

What is the complimentary mRNA sequence to the DNA sequence A-T-T-G-C-A.

• T-A-A-C-G-T
• U-A-A-C-G-T
• U-A-A-C-G-U
• T-A-A-G-C-U

What does the ARROW III represent?

• the bond between the sugar and phosphate

• the hydrogen bond between the nitrogen bases

What is the purpose of transcription?

• Transferring amino acids to the ribosome.

• Producing more nucleotides for the DNA sequence.

• Producing a mRNA from information found in the DNA.