DNA Structure & Replication Test

Which scientist developed the "Base-Pair" rule?

• Watson & Crick

• Franklin

• Chargaff

• Darwin

How do scientists refer to the DNA structure?

• Single Helix

• Double Helix

• Triple Helix

• Ladder

Genes for medically important proteins can be cloned (copied) and inserted into bacteria. Why can bacteria recognize a human gene and then produce a human protein?

• DNA replication in bacteria and humans is the same

• Bacterial cells contain the same organelles as human cells

• The basic components of DNA are the same in humans and bacteria

• Bacterial cells and human cells contain the same kind of chromosomes

Tags

NGSS.HS-LS1-1

During replication, which sequence of nucleotides would form hydrogen bonds with the DNA sequence TATGA?

• TATGA

• ATAGT

• CACTA

• ATACT

Senai is building a model of a strand of DNA. She should show that the nucleotides are linked by covalent bonds between:

• Two nitrogenous bases

• Phosphate and sugar

• Nitrogenous bases and sugar

• Nitrogenous bases and phosphate

Which scientist(s) were credited with the discovery of the shape of a DNA molecule, known as the double helix?

• Hershey and Chase

• Griffith

• Watson and Crick

• Franklin

The illustration below shows a step in DNA replication. Starting at the top, which list shows the identity of the bases of the new strand?

• A, G, T, A

• G, A, T, G

• G, A, U, G

• A, G, U, A

Four different segments of a DNA molecule are represented below. There is an error in the DNA in which molecule(s)?

• segment 1 only

• segment 3 only

• segment 2 and 3

• segment 2 and 4

Tags

NGSS.HS-LS3-2

After mitosis, each daughter cell has a complete copy of the genetic information in the original parent cell. This occurs because of which process? (5 Points)

• Cellular Respiration

• DNA Replication

• Protein Synthesis

• Passive Transport

Tags

NGSS.HS-LS1-4

At what point in the cell cycle does DNA replication occur and why? (5 Points)

• before a cell divides, during the S phase of interphase, to provide each of the two resulting cells with a complete set of DNA instructions

• before a cell divides, during the G1 phase of interphase, to ensure that the DNA will fit into the resulting cells

• during cell division, to ensure that the DNA will fit into the resulting cells

• after a cell divides, to provide each of the two resulting cells with a complete set of DNA instructions

Tags

NGSS.HS-LS1-1