DNA/RNA remediation

What it the significance of the nitrogenous bases?

• # of adenines and cytosines determine RNA
• order of nitrogenous bases determines order of amino acids
• amount of thymine and guanine determines length of genes
• type of hydrogen bonds determines amino acids

Tags

NGSS.HS-LS1-1

Which DNA strand is complementary to TGTAGCTGCGCGT

• AGUGCUGCGCGUA
• TGTAGCTGCGCGT
• ACATCGACGCGCA
• TCGCGCAGCTACA

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

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

Different types of mutations can occur in DNA.The diagram represents a type of mutation. Which statement describes the mutation in the diagram?

• A silent mutation results in the insertion of a different amino acid.
• A substitution occurs with the adenine base.
• A deletion of a cytosine base occurs.
• A base is inserted into one strand of the DNA.

Tags

NGSS.HS-LS3-2

Sickle-shaped red blood cells result from a mutation in the gene that codes for hemoglobin. This mutation results in sickle-cell anemia. A partial sequence of bases from a normal hemoglobin gene and a sequence that results in sickle-cell anemia are shown picture. What type of mutation is depicted in this sequence?

• Substitution
• Insertion
• Deletion
• Frameshift

Tags

NGSS.HS-LS3-2

Four different types of cells are shown in picture. Which characteristic is shared by all four cells?

• A mechanism for transforming sunlight into energy
• Self-locomotion
• Membrane-bound organelles that transport substances
• Genetic material composed of DNA

Tags

NGSS.HS-LS3-1