Curriculum
Login

Curriculum

Biology & Geology

Chapter 1 - Support and Movement in Living Organisms

0/26

Chapter 2 - Hormonal Coordination in Living Organisms

0/32

Chapter 3 - Reproduction in Living Organisms

0/33

Chapter 4 - Immunity in Living Organisms

0/34

Chapter 5 - Molecular Biology - DNA Structure and Function

0/43

Chapter 6 - Molecular Biology - RNA, Protein Synthesis and Genetic Engineering

0/38

Chapter 7 - Geology, Earth Sciences and Ecology

0/28
Quiz

Lesson 2 Quiz: DNA Structure, Replication and DNA Repair Enzymes

Submit quiz
Once you submit, you will no longer be able to change your answers. Are you sure you want to submit the quiz?
Cancel Submit
  • Questions count: 8
Start Quiz
1.
In a hydraulic press, if the radius of the large piston is 4 times that of the small piston, the mechanical advantage is:
8
2
16
4
2.
Boyle's Law states that for a fixed mass of an ideal gas kept at constant temperature, the volume V is:
Inversely proportional to its absolute pressure P (P1 * V1 = P2 * V2)
Directly proportional to pressure
Directly proportional to absolute temperature
Independent of pressure changes
3.
The Ideal Gas Law combining all empirical gas relationships is mathematically formulated as:
P / V = n * R * T
P * T = n * R * V
P * V = m * g * h
P * V = n * R * T
4.
A fixed quantity of an ideal gas has a volume of 600 cm3 at 27 °C. If the gas is heated to 127 °C under constant pressure, its new volume will be:
1200 cm3
800 cm3
900 cm3
700 cm3
5.
The volume expansion coefficient at constant pressure (alpha_v) of an ideal gas is physically measured using:
Joly's bulb apparatus or Charles's apparatus with a dry mercury droplet index
A torsion balance
A hydrometer
A venturi meter and manometer
6.
Cells that carry CD8 receptors and directly eliminate cancer cells, virus-infected cells, and transplanted organs are:
Cytotoxic T cells
Mast cells
Memory B cells
Helper T cells (Th)
7.
The protein secreted by cytotoxic T cells (Tc) that creates holes in the plasma membrane of the target cell is:
Interleukin
Perforin protein
globulin
Complement C3
8.
In prokaryotic cells (such as bacteria), a single circular DNA molecule attaches to the plasma membrane at:
Centrosome
Ribosome
One or more sites from which DNA replication begins
Nuclear envelope
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8