DNA Structure and Function/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

What is the function of transfer RNA?

• It is a part of the ribosome.
• It bonds to other RNA molecules, leading to their destruction.
  
• It delivers the correct amino acid to the ribosome.
• It carries the information coding for the amino acid sequence of a protein.

Which nucleotide is complementary to adenine?

• adenine
• thymine
• cytosine
• guanine

How many amino acids can be represented by a single 3-base DNA sequence?

• 1
• 3
• 6
• 8

DNA codes for __________ which determine ___________

• mRNA, tRNA
• mRNA, ribosomes
• proteins. traits
• proteins, peptide bonds

Tags

NGSS.HS-LS1-1

Which correctly outlined the central dogma

• DNA --> mRNA --> rRNA
• DNA --> tRNA --> protein
• DNA --> mRNA --> protein
• DNA --> amino acid --> protein

Tags

NGSS.HS-LS1-1

Which of the following best defines a gene?

• A diploid cell containing two sets of chromosomes
• A unit made up of chromosomes that control for a specific trait
• A segment of DNA that codes for a particular protein
• All the other answers are correct.

Tags

NGSS.HS-LS3-1

What is the difference between DNA and RNA

• DNA has uracil and RNA has thymine
• DNA is involved in transcription and RNA is involved in translation
• DNA contains thymine and RNA contains uracil
• DNA is made of nucleotides and RNA is not