DNA. Introduction to Agriculture, Food, and Natural Resources. Unit 4 – Lesson 4.1 Totally Cellular. The Nucleus. Eukaryote cells contain a nucleus that contain important organelle components and compounds required for cell replication. Florida State University (2010). Inside the Nucleus.
Introduction to Agriculture, Food, and Natural Resources
Unit 4 – Lesson 4.1 Totally Cellular
Eukaryote cells contain a nucleus that contain important organelle components and compounds required for cell replication
Florida State University (2010)
Chromosomes are found within the nucleus and contain DNA, which is the building block of genes.
Deoxyribonucleic acid – double stranded nucleic acid molecule arranged as a double helix.
Encyclopedia Britannica, Inc.
DNA is made up of:
DNA bases always combine as follows:
When cells divide, DNA strands must replicate.
Genes are “segments” DNA that define certain physical characteristics of living things.
Image from ADAM (2009)
Genes are replicated as DNA is copied over and over to make new cells.
This replication process defines the physical traits of a living organism and passes on the genetic combinations to offspring during fertilization.
Lab-Aids Incorporated. (2005). The molecular model of DNA and its replication kit [Brochure]. Ronkonkoma, NY: Author.
Parker, R. (2010). Plant and soil science: Fundamentals and applications. Clifton Park, NY: Delmar.