Skip to content

Gene ​

Tags
Cegep1
Biology
Word count
64 words
Reading time
1 minute

Unit of hereditary information made up of DNA

[!abstract] Locus
Fixed location that a gene occupies on a chromosome

Genetic variation ​

Caused by:

  • Independent assortment of chromosomes
    • Random orientation of tetrads on the metaphase plate
  • Crossing over of chromosomes during prophase I
  • Random fertilization of ova by sperm
  • Mutation

Contributors

Changelog