Question 1

Which of the following best describes the focus of transmission genetics?

Accepted Answer

The study of the transmission of traits in successive generations

Question 2

Which scientist is credited with discovering the patterns of inheritance in pea plants, laying the foundation for Mendelian genetics?

Accepted Answer

Gregor Mendel

Question 3

What is the primary mechanism by which allele frequencies change randomly in a population, as described in evolutionary genetics?

Accepted Answer

Genetic drift

Question 4

Which of the following statements about the Modern Synthesis is correct?

Accepted Answer

It merged transmission genetics, population/evolutionary genetics, and molecular biology to produce a unified theory of evolution

Question 5

In the context of the scientific method, what is confirmation bias?

Accepted Answer

The tendency to interpret information in a way that confirms prior beliefs

Question 6

Which of the following is NOT a key feature when selecting a model organism for genetic research?

Accepted Answer

High cost of maintenance

Question 7

Which equation represents the Central Dogma of molecular biology?

Accepted Answer

$DNA \rightarrow RNA \rightarrow Protein$

Question 8

A researcher is testing the hypothesis: 'BRCA1 mutations are associated with elevated risk of breast cancer.' What is the independent variable in this experiment?

Accepted Answer

BRCA1 genotype

Question 9

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

Accepted Answer

Sequencing the genomes of autistic children vs non-autistic children to identify gene mutations

Question 10

Which of the following mechanisms of evolution involves the movement of individual organisms between populations?

Accepted Answer

Migration (gene flow)

Question 11

Which scientist isolated 'nuclein', later identified as DNA, in 1869?

Accepted Answer

Miescher

Question 12

What is the definition of a genome?

Accepted Answer

An organism's complete set of genetic instructions encoded in DNA (or RNA in some viruses)

Question 13

Which of the following is a real-world application of genetics in agriculture?

Accepted Answer

Development of genetically modified crops with greater tolerance to pests and drought

Question 14

Which of the following best describes the relationship between genotype and phenotype?

Accepted Answer

Genotype refers to the genetic constitution of an organism, while phenotype refers to its physical traits

Question 15

Which of the following is NOT a branch of modern genetics?

Accepted Answer

Epigenetic inheritance

Question 16

Which process was developed in 1985 and revolutionized genetic research by allowing rapid amplification of DNA?

Accepted Answer

Polymerase Chain Reaction (PCR)

Question 17

Which of the following is a potential drawback of discovery-based science?

Accepted Answer

It may yield little useful data or questions

Question 18

Which of the following is a correct statement about the role of genetics in medicine?

Accepted Answer

Genetics plays a crucial role in disease risk, prevention, diagnosis, and treatment

Question 19

Which of the following is a dependent variable in a study testing the hypothesis that BRCA1 mutations are associated with breast cancer risk?

Accepted Answer

Frequency of breast cancer

Question 20

Which of the following mechanisms of evolution is described as the slow acquisition of inherited variation?

Accepted Answer

Mutation

Molecular Basis of Heredity, Variation, and Evolution: Foundations and Applications in Genetics

Study Guide - Practice Questions

Study Guide - Flashcards