Identify the steps of protein synthesis:
DNA --> --> mRNA --> --> Protein
Compare DNA and RNA.
DNA | RNA | |
|---|---|---|
Double stranded | ||
Single stranded | ||
Contains the base uracine (U) | ||
Contains the base thymine (T) | ||
Made of nucleotides containing sugar, phosphate, and a nitrogen base | ||
Contains genetic information |
Which mRNA sequence complements the DNA sequence below?
Which tRNA anticodon will complement this mRNA codon?
Match the following to their role in protein synthesis.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
tRNA | arrow_right_alt | Copies the genetic code from the DNA molecule and carries it to the ribosome. |
mRNA | arrow_right_alt | Stores the genetic code in the nucleus. |
DNA | arrow_right_alt | Carries an amino acid to the ribosome. |
A mutation always results in the incorrect protein being produced.
Which nitrogenous bases are needed to complete the DNA strand pictured below? Give your answer in order, from top to bottom.
cytosine
thymine
adenine
guanine
How would the mRNA built from the same DNA strand in #7 be different?
Match the process to its definition.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
DNA Replication | arrow_right_alt | The process of creating an mRNA strand from one side of DNA |
Transcription | arrow_right_alt | The process of using mRNA to build chains of amino acids |
Translation | arrow_right_alt | The process of duplicating a strand of DNA |
What is the function of tRNA in protein synthesis?
For each sequence of DNA is shown. Write the complementary mRNA sequence underneath the letters, then use the codon chart to determine the amino acid sequence:
DNA: TAC ACC TTG GCG ACG ACT
mRNA:
Amino Acid:


A mutation occurs in the previous strand of DNA and CAT becomes CAG.
Would the organism be affected? Explain your answer.
Another mutation occurs in the previous strand of DNA and CAT becomes CTT.
Would the organism be affected? Explain your answer.
What topics in this unit did you enjoy?
Which concepts did you find challenging?
What was your opinion of the following course elements?
Like 👍 | Just Okay 👌 | Didn't Like 🙈 | |
|---|---|---|---|
Formative | |||
Gizmos | |||
Live Class | |||
Asynchronous Lessons | |||
Course Readings |
What could Mrs. Winer do differently next summer in Biology to improve the class?
Thanks for your suggestions!