Bio - DNA Replication, Transcription, Translation Basics Rev

Which molecule in the table on the right could be RNA?

• molecule 1

• molecule 2

• molecule 3

• molecule 4

Which molecule in the table on the right could be DNA?

• molecule 1

• molecule 2

• molecule 3

• molecule 4

Tags

NGSS.HS-LS1-1

The diagram here represents part of a double helix. The part indicated by the arrow could be

• adenine

• uracil

• deoxyribose

• phosphate

Tags

NGSS.HS-LS1-1

The picture below shows an enzyme unwinding and unzipping DNA.

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​What is the name of this enzyme?

• DNA Helicase

• DNA Ligase

• DNA polyermase

• RNA Polymerase

DNA replication results in two DNA molecules,

• each one with two original strands
• each one with two new strands
• each one with one new strand and one original strand
• one with two new strands and the other with two original strands

The sequence of ______ on an mRNA molecule determines the protein that will be produced

• lipids

• nucleotides

• proteins

• sugars

Tags

NGSS.HS-LS1-1

During protein synthesis, what does mRNA do?

• It delivers a copy of DNA's instructions for making proteins to the ribosome

• It constructs proteins out of random amino acids

• It strings together two complementary RNA strands to bring to the endoplasmic reticulum

• It strings together two complementary DNA strands in semiconservative replication

Tags

NGSS.HS-LS1-1

During protein synthesis, what does tRNA do?

• It carries amino acids to the ribosome by matching its anticodon with the codon on mRNA

• It carries lipids to the ribosome during the process of translation to make a polypeptide

• It is a structural part of the ribosome, and really just holds the mRNA in place

• tRNA can't leave the nucleus, so it can only be involved in transcription but not translation

The correct order of molecules involved in protein synthesis is

• messenger RNA, transfer RNA, DNA, polypeptide

• DNA, messenger RNA, polypeptide, transfer RNA

• transfer RNA, polypeptide, DNA, Messenger RNA, DNA

• DNA, messenger RNA, transfer RNA, polypeptide

The function of _____ is to transport amino acids in the cytoplasm to the ribosome.

• rRNA
• tRNA
• mRNA
• DNA