What would happen if we did not have start codons?

Protein synthesis wouldn't occur

Polypeptide chains would continue to grow

mRNA would form a double strand

Which of the following occurs first in translation?

The small ribosomal subunit binds to mRNA

The large ribosomal subunit binds to mRNA

A peptide bond forms between amino acids

What is the relationship between a protein, the cell, and DNA?

DNA makes RNA which produces protein in the cell

DNA is produced by protein which is produced in the cell

Protein is composed of DNA which is produced in the cell

A cell is composed of DNA and protein

Overall, protein synthesis consists of these steps

DNA synthesis, RNA synthesis and transcription

DNA synthesis, transcription and translation

What is the function of the poly-A tail in mRNA?

to help protect the mRNA from degradation by hydrolytic enzymes

to add modified guanin to the 3' end of the mRNA

to indicate the site of translational termination

to code for the binding of RNA polymerase to the DNA

What must happen to a newly made polypeptide before it can be secreted from a cell?

its signal sequence must target it to the ER, after which it goes to the Golgi

it must be translated by a ribosome that remains free of attachment to the ER

Its signal sequence must be cleaved off

Its signal sequence must target it to the plasma membrane

Which is the best description of a gene?

a DNA sequence that is expressed to form a functional product; either RNA or polypeptide

a DNA subunit that codes for a single complete protein

a DNA-RNA sequence combination that results in an enzymatic product

a descrete unit of hereditary information that consists of a sequence of amino acids

What is a peptide bond?

Bond that holds two amino acids together.

A bond that holds hydrogen and oxygen molecules together.

A bond that holds the phosphate group of one nucleotide and a sugar of a neighboring nucleotide.

A bond that is formed by the sharing of electrons.

A frameshift mutation could result from

either an insertion or a deletion of a base.

section of mRNA that codes for protein

section of mRNA that does not code for protein

section of tRNA that codes for protein

section of rRNA that codes for protein

Where is the TATA box found?

in the promoter sequence of eukaryotes

in the promoter sequence of prokaryotes

in the terminator sequence of prokaryotes

in the terminator sequence of eukaryotes

This is one job proteins do NOT have in the body

transport things through cell membrane

Which of the following events in translation is the first to occur in eukaryotes?

the small subunit of the ribosome recognizing and attaching to the 5'cap

base pairing of activated methionine-tRNA to AUG of the messenger RNA

binding of the larger ribosomal subunit to smaller ribosomal subunits

What happens in RNA processing and where does it occur?

5' cap and 3' poly A tail added, in nucleus

3' cap and 5' poly A tail added, in cytoplasm

introns cut out and exons reattached, nucleus

introns cut out and exons reattached, cytoplasm

The two types of folding in the secondary structure are.....

alpha-helix & beta-pleated sheets

The difference between tertiary and quartenary structure is:

Tertiary structure consists of one polypeptide chain whereas quartenary structure consists of more than one polypeptide chains

Tertiary structure has double bond whereas quartenary structure does not have double bond

Tertiary structure is fibrous whereas quartenary structure is globular

Tertiary structure is water-soluble whereas quartenary structure is lipid soluble

Protein Translation

Authored by Kris Hodge

Biology

9th - 12th Grade

NGSS covered

Used 80+ times

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50 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Translation takes place in the

ribosome

chloroplast

nucleus

mitochondria

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Brings the amino acids to the ribosome

mRNA

tRNA

rRNA

DNA

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What would be the tRNA anticodon for the mRNA codon CAG?

GTC

GUC

CUG

CAG

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the term for a three-nucleotide sequence that codes for an amino acid?

base

codon

amine

serine

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which phrase best describes translation?

converts mRNA into a polypeptide

catalyzes bonds between amino acids

produces RNA from DNA molecules

recycles tRNA molecules for reuse

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of bonds are forming during translation?

Peptide bonds

Hydrogen bonds

Acid bonds

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

EXTRA AWESOME QUESTION: Which types of cells can begin the process of translation even before the mRNA has been completely transcribed?

Eukaryotes

Prokaryotes

Both Prokaryotes and Eukaryotes can

No cells can can do this

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