Lesson 41: Protein Synthesis: Transcription

Where does transcription take place in eukaryotic cells?

• In the endoplasmic reticulum

• In the cytoplasm of the cell

• At the ribosome

• In the nucleus of the cell

During protein synthesis, _____________ RNA (mRNA) carries the DNA code from the nucleus.

_______________ bonds with thymine (DNA) and uracil (RNA).

Following transcription, the mRNA leaves the nucleus and binds to a ____________.

• ribosome

• cytoskeleton

• vacuole

• cell wall

A ____________ is a sequence of three nucleotides on mRNA that codes for an amino acid.

• protein

• nucleotide

• ribosome

• codon

What is the first thing that occurs during transcription?

• Uracil bonds to adenine.

• mRNA nucleotides form a copy of the DNA template.

• The DNA strands unzip.

• Codons are formed.

Cells make proteins using the DNA code. Select all answers below that describe where DNA is located.

• In the cytoplasm of eukaryotic cells

• Within the nucleus of eukaryotic cells

• In the cytoplasm of prokaryotic cells

• Within the nucleus of all cells

Select all answers below that are stages of protein synthesis.

• Translation

• Polymerase

• Helicase

• Transcription

Select all activities below that occur during transcription.

• The mRNA nucleotides are brought in.

• The DNA strands within the nucleus separate.

• Amino acids are assembled into proteins.

• An mRNA strand is constructed using the DNA code.

__________ has the code for making all the proteins needed by the cell.

Tags

NGSS.HS-LS1-1