DNA to Proteins

What process is shown in the diagram?

• replication
• transcription
• mitosis
• translation

Tags

NGSS.HS-LS3-2

Which best describes the role of free floating nucleotides (A, C, G, & T) in the illustration?

• They are recycled when the DNA is composed. 
• They are molecular machines the tare used to read ATP. 
• They are enzymes that are produced when the DNA is read. 
• They are the building blocks that are used to make new strands.

What is a possible DNA sequence for the amino acid sequence phenylalanine-glycine-threonine? 

• UUU GGG ACC
• AAA CCC UGG
• TTT GGG ACC
• AAA CCC TGG

Tags

NGSS.HS-LS1-1

Using the codon chart, which of the following polypeptides is coded for by the mRNA sequence 5’ AUG GUU AAA CGA CAA UCC 3'

• Val, Lys, Phe, Gly, Ser, Met

• Met, Asp, Phe, Ala, Arg, Ser

• Met, Val, lys, Arg, Gln, Ser

• Ile, Gln, Lys, Asp, Gly, Ser

Tags

NGSS.HS-LS1-1

A segment of DNA is represented in the illustration.
How is information for a specific protein carried on the DNA molecule?

• As a sequence of nucleotides
• In the double-helix shape of the condensed chromosome
• In the ratio of adenines to thymines
• As a pattern of phosphates and sugars

Tags

NGSS.HS-LS1-1

Which DNA strand is complementary to the top one shown in the picture?

• A
• B
• C
• D

Nitrogenous bases are located on both strands of the DNA double helix. What is the significance of the nitrogenous bases?

• The number of adenines and cytosines determines the type of RNA that will be produced.
• The order of nitrogenous bases determines the order of amino acids in the proteins synthesized.
• The amount of thymine and guanine in the DNA molecules determines the length of the genes.
• The type of hydrogen bonding between the nitrogenous bases determines which amino acid will be added to the peptide chain.

Tags

NGSS.HS-LS1-1

A model of a biological process is shown. What is the purpose of this process?

• To replicate the DNA of an organism before cell division
• To assemble nucleotides in an mRNA chain along a DNA template
• To synthesize amino acids used to unzip strands of DNA and copy the genetic code
• To translate the genetic code into a specific sequence of amino acids

Tags

NGSS.HS-LS1-1

The initial steps in gene expression are modeled below. Double-stranded DNA first unwinds into two strands. Which process and product are represented in Diagram 2?

• Process: transcription; product: mRNA
• Process: translation; product: protein
• Process: replication; product: tRNA
• Process: recombination; product: polymerase

Tags

NGSS.HS-LS1-1

Which of the following polypeptides is coded for by the mRNA sequence ^5'AUG GUU AAA CGA CAA UCC^3'?

*Use Codon Chart*

• Val, Lys, Phe, Gly, Ser

• Met, Asp, Phe, Ala, Arg

• Met, Val, Lys, Arg, Gln, Ser

• Ile, Gln, Lys, Asp, Gly, Leu, Ser

Tags

NGSS.HS-LS1-1