UCSB Science Line
Sponge Spicules Nerve Cells Galaxy Abalone Shell Nickel Succinate X-ray Lens Lupine
UCSB Science Line
Home
How it Works
Ask a Question
Search Topics
Webcasts
Our Scientists
Science Links
Contact Information
Which has more genetic information, a body cell or a gamete?
Answer 1:

That depends on whether the body cell is haploid (contains one copy of each gene) or diploid (contains two copies). Gametes are always haploid, so if the body cell is also haploid, then they would have exactly the same genetic information. If the body cell is diploid, then it can have up to twice as much, if the body cell were heterozygous for every gene (i.e. two different alleles for each gene).

Animal body cells are always diploid. Plants go through something called alternation of generations where they have some bodies that are haploid and others that are diploid. Fungi and various protists are different yet.


Answer 2:

The body cell has more genetic information. A gamete only has half the information of a body cell. So when two gametes combine (a sperm and an egg), together they provide the child with all the genetic information needed for its body cells.



Click Here to return to the search form.

University of California, Santa Barbara Materials Research Laboratory National Science Foundation
This program is co-sponsored by the National Science Foundation and UCSB School-University Partnerships
Copyright © 2015 The Regents of the University of California,
All Rights Reserved.
UCSB Terms of Use