Which of the following best describes how mutations affect organisms?

Prepare for the Texas AandM University BIOL111 Introductory Biology I Exam. Study with comprehensive questions, detailed explanations, and strategic tips to excel in your test. Boost your confidence and knowledge for Exam 3 success!

Mutations play a crucial role in the genetic diversity of organisms and can have a wide range of effects. The accurate description states that mutations can be beneficial, neutral, or harmful.

Beneficial mutations may provide an advantage that improves an organism's ability to survive and reproduce in its environment. For instance, a mutation that enhances an individual's resistance to a disease can significantly increase its chances of survival and reproduction.

Neutral mutations typically have no immediate impact on the organism's fitness. They might occur in non-coding regions of DNA or result in changes that do not affect the organism's overall functioning.

Harmful mutations, on the other hand, can lead to detrimental effects, such as reduced fitness or the development of diseases. An example is a mutation that disrupts the normal function of a critical protein, potentially leading to disorders.

This variability in mutation outcomes highlights the complexity of genetics and evolution, where mutations can be vital drivers of change and adaptation in populations over time. Thus, the nuanced view that mutations can have beneficial, neutral, or harmful effects best captures the diverse implications of genetic changes in organisms.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy