RNA and Protein Synthesis - Unit 8 review

What direction does genetic information flow?

• DNA -> RNA -> Protein

• RNA -> DNA -> Protein

• Protein -> DNA -> RNA

• RNA-> Protein -> DNA

• Protein -> RNA -> DNA

Tags

NGSS.HS-LS1-1

What are characteristics of RNA that are not shared with DNA?

• single stranded

• Bases A T G C

• Bases A U G C

• Stays in the nucleus

• Has different types

What is the function of mRNA?

• delivers and transfers an amino acid to the ribosome during protein synthesis

• makes up part of the ribosome, the site of protein synthesis

• is a copy of a gene used as instructions for protein synthesis

• it is a product of DNA replication

Which of the following statements is true regarding protein synthesis ?

• During transcription, an mRNA molecule is created from the DNA molecule.

• Translation takes place in the nucleus, while transcription takes place in the cytoplasm.

• During protein synthesis, translation occurs prior to transcription.

• During translation, a DNA sequence is used to synthesize an amino acid sequence.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

The following DNA strand is used as a template for transcription:

3' CGTAAGCGGCT 5′

Which of the following RNA strands will be produced?

• AGCCGCUUACG

• GCAUUCGCCGA

• CGUAAGCGGCU

• UCGGCGAAUGC

Which of the following is true regarding the process of transcription?

• Transcription occurs for individual genes.

• Transcription uses both strands of DNA to make mRNA.

• DNA polymerases control transcription.

• The three stages of transcription are initiation, elimination, and reduction.

RNA is different from DNA because

• it can only be in the nucleus

• it is double stranded

• It has a ribose sugar

• it is the code for all proteins

A point mutation that changes one nucleotide but not an amino acid is called a

• deletion

• silent

• nonsense

• missense

Tags

NGSS.HS-LS3-2

The role of tRNA is to

• copy DNA to make an mRNA transcript

• help the mRNA find and bind to the ribosome

• it acts as a transcription factor

• deliver the amino acids to the ribosome

Proteins are important because proteins

• give us energy

• store our genetic code

• provide insulation

• perform all cellular work