Radiobiology Quiz with Answers

AdminApril 12, 2024

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Welcome to the Radiobiology MCQs with Answers. In this post, we have shared Radiobiology Online Test for different competitive exams. Find practice Radiobiology Practice Questions with answers in Physics Tests exams here. Each question offers a chance to enhance your knowledge regarding Radiobiology .

Radiobiology Online Quiz

By presenting 3 options to choose from, Radiobiology Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Radiobiology Questions and Answers and click over the correct answer.

Test Name: Radiobiology MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

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Radiobiology

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1 / 40

The process of DNA breaking into smaller fragments due to radiation exposure is called ________.

Fragmentation

Amplification

Ligation

2 / 40

Which of the following radiation types has the highest LET?

Gamma

Alpha

Beta

3 / 40

Which of the following radiation types is most easily stopped by a piece of paper?

Beta

Alpha

Gamma

4 / 40

Which of the following is a stochastic effect of radiation?

Cancer

Cataracts

Radiation burn

5 / 40

Which of the following is a type of deterministic effect of radiation?

Genetic mutation

Cancer

Radiation burn

6 / 40

The half-life of a radioactive material is the time taken for ________.

One quarter of the material to decay

All of the material to decay

Half of the material to decay

7 / 40

Which of the following tissues is most sensitive to radiation?

Muscle

Nerve

Bone marrow

8 / 40

The process of repairing DNA damage in cells is called ________.

DNA repair

Apoptosis

Mitosis

9 / 40

The unit of equivalent dose is ________.

Roentgen

Gray

Sievert

10 / 40

The process of cells dying due to radiation exposure is known as ________.

Mitosis

Necrosis

Apoptosis

11 / 40

Which of the following radiation types is most penetrating?

Gamma

Beta

Alpha

12 / 40

The oxygen effect refers to ________.

No effect of oxygen

Decreased damage in the presence of oxygen

Increased damage in the presence of oxygen

13 / 40

Biological effects of radiation primarily depend on ________.

Wavelength

LET

Dose

14 / 40

Which of the following is a deterministic effect of radiation exposure?

Cancer

Genetic mutation

Radiation burn

15 / 40

The RBE of a radiation type is highest for ________.

Gamma rays

Beta particles

Alpha particles

16 / 40

The fractionation of radiation therapy refers to ________.

Using different types of radiation

Delivering radiation in divided doses

Increasing the total radiation dose

17 / 40

The linear non-threshold model suggests that ________.

Any dose of radiation can cause harm

Only high doses of radiation cause harm

Low doses of radiation cause harm

18 / 40

The inverse square law governs the ________.

Radiation quality

Radiation dose

Radiation intensity

19 / 40

The RBE of a radiation type depends on its ________.

LET

Dose

Wavelength

20 / 40

The process of radiation therapy planning involves ________.

Diagnosing radiation-related illnesses

Determining the optimal dose and delivery method

Monitoring patient response to treatment

21 / 40

The process of cells dying due to radiation exposure is called ________.

Necrosis

Apoptosis

Mitosis

22 / 40

The law of Bergonie and Tribondeau states that ________.

Large cells are more sensitive

Non-dividing cells are more sensitive

Highly mitotic cells are more sensitive

23 / 40

The concept of “relative biological effectiveness” (RBE) compares the ________.

Effectiveness of different types of radiation

Absorbed doses of different types of radiation

Energy output of different types of radiation

24 / 40

Which of the following is NOT a characteristic of alpha particles?

High LET

High energy

Low penetration

25 / 40

Which of the following is a form of indirect DNA damage by radiation?

Free radicals

Single-strand breaks

Double-strand breaks

26 / 40

The process of repairing radiation-induced DNA damage in cells is called ________.

Apoptosis

DNA repair

Mitosis

27 / 40

The RBE of a radiation type depends on its ________.

Dose

Wavelength

LET

28 / 40

Which of the following is a measure of radiation output in air?

LET

Exposure

Dose

29 / 40

Radiation with high LET is more likely to cause ________.

Direct DNA damage

Indirect DNA damage

No DNA damage

30 / 40

The unit of absorbed dose is ________.

Sievert

Roentgen

Gray

31 / 40

The linear energy transfer (LET) of radiation ________.

Increases with higher atomic number

Decreases with higher atomic number

Is unaffected by atomic number

32 / 40

Which of the following is NOT a type of radiation?

Gamma

Beta

Alpha

33 / 40

The process by which radiation changes the structure of a material through which it passes is called ________.

Ionization

Activation

Filtration

34 / 40

The term “LET” stands for ________.

Longitudinal Efficiency Total

Light Emission Technology

Linear Energy Transfer

35 / 40

The process of cell division is most sensitive to radiation during the ________ phase.

Mitotic

36 / 40

Which of the following is NOT a characteristic of gamma rays?

Charge

Penetration

Mass

37 / 40

Which of the following is a stochastic effect of radiation exposure?

Cancer

Skin redness

Nausea

38 / 40

The radiation weighting factor (WR) is highest for ________.

Gamma

Alpha

Beta

39 / 40

The process of radioactive decay results in the emission of ________.

Alpha

Gamma

Beta

40 / 40

The quality factor (QF) accounts for ________.

Energy of radiation

Penetration of radiation

Biological effectiveness of radiation

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AdminApril 12, 2024

0 24 1 minute read