Protein Synthesis

In RNA, Uracil pairs with ______. 

• cytosine
• adenine
• guanine
• thymine

The process to go from DNA to mRNA is _______

• translation
• transcription
• replication

The process to go from mRNA to a protein is called ____

• transcription
• rRNA
• replication
• translation

DNA holds the code for

• lipids
• carbohydrates
• protein
• sugar

Tags

NGSS.HS-LS1-1

This is a DNA molecule. What does the circled portion represent?

• a tRNA subunit
• an amino acid
• a nucleotide
• mRNA

What do the lines between A-T and C-G represent?

• Ionic bonds
• hydrogen bonds
• covalent bonds
• van der Waals forces

If this molecule were transcribed, how many codons would the resulting mRNA contain?

• 1
• 2
• 3
• 4

How many nucleotides are included in Figure 1?

• 10
• 12
• 14
• 16

Which portion of the DNA molecule varies from nucleotide to nucleotide and thus serves as the portion of the nucleotide which codes for amino acid sequences?

• phosphate group
• ribose sugar
• nitrogenous bases
• hydrogen bonds

Sickle cell anemia is a disorder in which the amino acid GLU is replaced VAL. Why might this one change cause problems for affected individuals?

• Different amino acids have different polarities. This changes the overall shape, and therefore function of a protein.
• The change has little effect on the overall protein structure/function.
• Since Val and Glu are similar amino acids, the substitution is not the cause of symptoms.
• None of the above are correct.