DNA and protein synthesis

What is a codon?

• a sequence of 3 amino acids
• a sequence of three nitrogen bases
• a sequence of 3 enzymes
• a sequence of 3 proteins

The DNA nucleotide is composed of three parts. Which two components make up the nucleotide backbone?

• ribose sugar and base
• ribose sugar and phosphate group
• nitrogen base and deoxyribose sugar
• deoxyribose sugar and phosphate group
  

Tags

NGSS.MS-LS3-1

Which type of RNA delivers the genetic code to the ribosome?

• tRNA
• mRNA
• rRNA
• tmRtmRNA

The drawing shows the structure of what molecule?

• A DNA molecule
• A lipid molecule
• A carbohydrate molecule
• A protein molecule

Tags

NGSS.HS-LS1-1

What type of bonds hold the nitrogen bases in the DNA rungs together?

• ionic bonds
• hydrogen bonds
• peptide bonds
• james bonds

What will be the complementary DNA sequence resulting from the following:

GAT-TAC-AGA-TTA-CAT?

• CTA-ATG-TCT-AAT-GTA

• GAU-UAG-UGA-UUA-GUT

• CUA-AUG-UCU-AAU-GUA

• CAT-ACA-TAC-ATA-TAG

Tags

NGSS.HS-LS1-1

What will be the resulting mRNA from this DNA sequence:
GAT-TAC-AGA-TTA-CAT?

• CTA-ATG-TCT-AAT-GTA
• GAU-UAG-UGA-UUA-GUT
• CUA-AUG-UCU-AAU-GUA
• CAT-ACA-TAC-ATA-TAG
  

Tags

NGSS.HS-LS1-1

Which of the following carries amino acids to the site of protein synthesis? 

• mRNA
• rRNA
• tRNA
• nRNA

In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of

• cytosine
• guanine
• thymine
• uracil

What are the three components of a nucleotide?

• sugar, hydrogen, nitrogen base
• sugar, oxygen, nitrogen base
• sugar, phosphate, nitrogen base
• sugar, phosphate, protein