GeneticsLesson 1 of 5 in the course Genomics and sequencing

Genomics: Genome Structure, Sequencing, Annotation, and Applications

5 flashcards · 5 quiz questions · 5 match pairs · 5 fill-in sentences · English

Save course
Lesson progress
0 / 5

Your progress is kept in this browser only.Sign up to save it

Summary

Genomics examines genomes as complete, interacting systems rather than focusing on one gene at a time. This lesson introduces the genome, distinguishes genomics from genetics, and explains why whole-genome perspectives matter.

A genome is an organism’s complete set of DNA. It includes genes and the DNA’s organization, including its hierarchical and three-dimensional structure. Genomics is the interdisciplinary study of genome structure, function, evolution, mapping, and editing.

All flashcards

What does a genome include?
An organism’s complete set of DNA, including genes, noncoding DNA, and the organization of its genetic material.
What is epistasis?
A relationship in which one gene affects the effect of another gene.
What is pleiotropy?
The phenomenon in which one gene affects more than one trait.
What is heterosis?
Hybrid vigor, in which a hybrid may show enhanced characteristics compared with its parents.
What does functional genomics investigate?
Genome-wide gene activity, the functions of gene products, and interactions among them.

Quiz questions

  1. In shotgun sequencing, what does coverage measure?Answer: The average number of reads representing each nucleotide in the genome.
  2. What is the main goal of structural genome annotation?Answer: To identify genomic features and determine their locations and structures.
  3. What material does metagenomics analyze?Answer: Genetic material recovered directly from environmental samples.
  4. How can genomic data contribute to precision medicine?Answer: By helping researchers investigate disease causes and differences in drug response.
  5. Which genome was the first fully sequenced DNA-based genome?Answer: The genome of bacteriophage φX174.

Based on the Wikipedia article Genomics, licensed CC BY-SA 4.0. Adapted into a summary, flashcards and quizzes.

More in Genetics

All Genetics lessons
GeneticsAlleles, Inheritance Patterns, and Chromosomal Variation5 flashcards · 5 quiz questions · 4 gamesPlay free →GeneticsMendel’s Pea-Plant Experiments: Variation, Crosses, and Inheritance5 flashcards · 5 quiz questions · 4 gamesPlay free →GeneticsGenetic Inheritance, Chromosome Variation, and Gene–Environment Effects5 flashcards · 5 quiz questions · 4 gamesPlay free →GeneticsProkaryotic Operons, Global Control, and Eukaryotic Gene Regulation5 flashcards · 5 quiz questions · 4 gamesPlay free →GeneticsGenetic Inheritance, Mendelian Principles, and Population Variation5 flashcards · 5 quiz questions · 4 gamesPlay free →GeneticsMeiotic Chromosome Variation: Number, Dosage, and Structural Rearrangements5 flashcards · 5 quiz questions · 4 gamesPlay free →