Question 1

Which of the following best describes the 'Central Dogma' of molecular genetics?

Accepted Answer

DNA is transcribed into RNA, which is then translated into protein.

Question 2

Which process is primarily responsible for random changes in allele frequencies in a population, especially in small populations?

Accepted Answer

Genetic drift

Question 3

A scientist is studying the inheritance of flower color in pea plants using controlled crosses. Which branch of genetics is she primarily working in?

Accepted Answer

Transmission genetics

Question 4

Which of the following is NOT a typical characteristic of a model organism used in genetic research?

Accepted Answer

Large genome size

Question 5

Which of the following best defines a 'genotype'?

Accepted Answer

The genetic constitution of an organism

Question 6

Which historical event marked the merging of transmission genetics, evolutionary genetics, and molecular biology into a unified theory of evolution?

Accepted Answer

The Modern Synthesis (ca. 1900-1940)

Question 7

Which of the following is an example of a dependent variable in a genetics experiment?

Accepted Answer

The height of plants measured after treatment

Question 8

Which of the following best describes the difference between hypothesis-based and discovery-based science?

Accepted Answer

Hypothesis-based science tests specific predictions, while discovery-based science seeks patterns in data.

Question 9

Which of the following is a real-world application of genetic research in medicine?

Accepted Answer

Gene therapy to restore gene function in patients

Question 10

A genetically modified organism (GMO) is best defined as:

Accepted Answer

An organism whose genetic material has been altered using genetic engineering techniques

Question 11

Which scientist(s) provided evidence that DNA is the hereditary material by demonstrating transformation in Streptococcus pneumoniae?

Accepted Answer

Avery, MacLeod, and McCarty

Question 12

Which of the following equations correctly represents the flow of genetic information according to the Central Dogma?

Accepted Answer

$$DNA \rightarrow RNA \rightarrow Protein$$

Question 13

Which of the following mechanisms is NOT considered a primary driver of evolutionary change in populations?

Accepted Answer

Photosynthesis

Question 14

Which of the following statements about confirmation bias is correct?

Accepted Answer

It is the tendency to interpret information in a way that confirms prior beliefs.

Question 15

Which of the following is a reason why mice are commonly used as model organisms in genetics research?

Accepted Answer

They have a short generation time and are easy to maintain.

Question 16

Which of the following best describes a 'phenotype'?

Accepted Answer

The observable traits or characteristics of an organism

Question 17

Which of the following is an example of discovery-based science?

Accepted Answer

Comparing the genomes of healthy and diseased individuals to find associated genes

Question 18

Which of the following is the correct definition of a 'genome'?

Accepted Answer

The complete set of genetic instructions in an organism

Question 19

Which of the following is a controlled variable in a genetics experiment testing the effect of light on plant growth?

Accepted Answer

The amount of water given to each plant

Question 20

Which of the following discoveries was made by Miescher in 1869?

Accepted Answer

The isolation of 'nuclein', later known as DNA

Introduction to Genetics: Foundations, Approaches, and Applications

Study Guide - Practice Questions