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