Next Generation: HS.LS3.1 HS.LS3.1


Author: Nathan Lampson
Explains how DNA contains genetic material and how it is housed in chromosomes
See More
Try a College Course Free

Sophia’s self-paced online courses are a great way to save time and money as you earn credits eligible for transfer to over 2,000 colleges and universities.*

Begin Free Trial
No credit card required

27 Sophia partners guarantee credit transfer.

245 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 21 of Sophia’s online courses. More than 2,000 colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.



DNA is the blueprint for the structure of an organism. 

Genetic material is composed of sequences of structures called nucleotides.

The sequence of nucleotides in DNA determine the traits of an organism.


DNA can replicate in order to make copies of itself to pass genetic information down to the next generation of organisms.

Depending on the stage of the cell cycle, DNA can be stored as chromosomes or chromatin.

Each fiber of DNA is called a chromosome.

Image: DNA is attached to proteins and can forms long fibers called chromatin

Source: Concepts in Biology Twelfth Edition Eldon Enger, et al.