Investigation 3 Test Review

Which of the following best explains why cells that contain the same genetic material do not develop into the same types of cells?

• Because internal or external stimuli can trigger the activation of specific genes in the DNA of cells

• Because random mutations can occur in the DNA of cells during early embryonic development

• Because messenger RNA is converted to transfer RNA when cell differentiation begins

• Because ehemical signals that are released during the cell cycle can result in the linking of similar genes

Tags

NGSS.HS-LS1-4

Which part of the DNA model is most directly associated with the coding of genetic information?

• 
• 
• 
• 

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Which of these identifies the part of the DNA segment labeled x?

• Nucleotide

• Phosphate Group

• Hydrogen Bond

• Deoxyribose

3' AGGTCAGGT 5'

 

What is the correct complementary DNA strand for the segment shown?

• 5' AGGTCAGGT 3'

• 5' ACCUGAGGU 3'

• 5' TGGACTGGA 3'

• 5' TCCAGTCCA 3'

What is the role of the enzyme helicase in DNA replication?

• It synthesizes new DNA strands by adding nucleotides

• It unwinds the DNA double helix

• It joins Okazaki fragments on the lagging strand

• It prevents the re-annealing of separated DNA strands

A scientist observes a base sequence of AGCTAGCTAGCT.  Which of the following would be the complimentary strand?

• TGCATGCATGCA
• TCGATCGATCGA
• TAGCTAGCTAGC
• TTAAGGCCTTCC

Tags

B.LS3.1 DNA Structure & replication

DOK 3

DNA Replication

Which statement best describes a similarity among trees, cats, and amoebas?

• They are prokaryotic organisms

• They are classified as members of the same kingdom

• They have genomes that consist of the same number of genes

• They contain DNA comprised of the same four types of nucleotides

Tags

NGSS.HS-LS4-1

NGSS.HS-LS4-2

E. coli has three genes that each code for different enzymes that break down lactose. 

Which conclusion about the production of the enzymes can be determined by analyzing the scientists' results?

• Gene expression for the enzymes was controlled by the temperature of the lactose.

• The genes for the enzymes were expressed in equal amounts during both experiments.

• Gene expression for the enzymes was controlled by the presence of lactose.

• The genes for the enzymes were mutated before being expressed by the presence of lactose.

Tags

NGSS.HS-LS1-3

What components make up the backbone of a DNA molecule?

• Purines and deoxyribose

• Pyrimidines and purines

• Deoxyribose and phosphate groups

• Phosphate groups and pyrimidines

Which biomolecule is NOT present in a DNA molecule.

• Carbohydrate

• Lipid

• Nucleic acid

• Protein