Protein Synthesis

An antibiotic binds to tRNA molecules and prevents them from binding to an amino acid. What will happen as a result of this?

• Protein synthesis will be stopped

• Proteins being synthesized will not be folded properly

• Protein synthesis will not be able to make the correct mRNA

• Proteins being synthesized will be longer than normal.

With which cellular process are ribosomes directly involved?

• Doubling genetic material before cell division

• Producing cellular energy molecules from glucose

• synthesizing structural and functional proteins

• separating sister chromatids during cell division

The events that occur during protein synthesis are listed in random order:

1.) mRNA is formed

2.) Amino acids form polypeptides

3.) A strand of DNA segment unwinds

4.) mRNA attaches to ribosomes

5.) tRNA supplies the required amino acids

What is the correct sequence of events that occur during protein synthesis?

• 3,1,4,2,5

• 3,1,4,5,2

• 4,1,3,5,2

• 4,1,2,3,5

How does DNA determine a trait such as eye color of an organism?

• It interacts with proteins that control eye color

• It codes for mRNA that directly determines eye color

• It codes for proteins that directly determine eye color

• It produces pigments that make up eye color

Tags

NGSS.HS-LS1-1

A Student wrote the following about the various features of RNA molecules:

• Bases: C, A, G, U
• Type of Sugar: Deoxyribose
• Structure: Single Stranded
• Function: Protein Synthesis

The student made an error while creating the table. Which statement describes the change that the student needs to make in the table?

• The type of base should be thymine instead of uracil

• The type of sugar should be ribose instead of deoxyribose

• The structure should be a double helix instead of a single strand.

• The function should be to help in the synthesis of DNA instead of protein

A student summarizes the central dogma in the following way:

• DNA serves as a template which is translated into mRNA which is transcribed into amino acids to create proteins.

The students statement is incorrect. Why?

• DNA doesn't serve as the template, it simply turns into mRNA when it receives signal to do so from the nucleus.

• Amino acids do not make up proteins, proteins make up amino acids.

• DNA is transcribed into mRNA and translated into amino acids that create proteins.

• DNA is transcribed into tRNA which translates amino acids into proteins.

Tags

NGSS.HS-LS1-1

In what process is mRNA synthesized?

• Transcription

• Translation

• DNA Replication

• Mitosis

Where does TRANSCRIPTION occur?

• Nucleus

• Ribosome

• Cytoplasm

• Mitochondria

How many nucleotides equal 1 amino acid?

• 1

• 2

• 3

• 4

On which molecule can an anticodon be found?

• mRNA

• DNA

• tRNA

• rRNA