Ch 1 Introduction to Genetics Flashcards
the study of heredity; how inherited variation is encoded, replicated, and expressed; and how it evolves over time
Genetics
what are the three major subdivisions of genetics?
transmission genetics
molecular genetics
population genetics
the complete set of genetic instructions for any organism
genome
division of genetics that studies heredity and how traits are passed from one generation to the next
transmission genetics
division of genetics that studies how genetic information is encoded, replicated, and expressed
molecular genetics
division of genetics that studies the genetic composition of a population and how it changes geographically throughout time
population genetics
organisms wildly used in genetic research and serve as models for genetic systems of other organisms
model genetic organisms
what makes a good model organism?
possess life cycles and traits that make them suitable for genetic studies, such as:
- short generation time
- large populations
- adaptability to lab environment
- inexpensive
differentiate prokaryotic and eukaryotic cells
prokaryotic cells:
- lack nucleus
- relatively smaller and less complex
- usually one circular DNA molecule
- no membrane-bound organelles
eukaryotic cells:
- nucleus cells
- relatively larger and more complex
- multiple linear DNA molecules
- membrane-bound organelles