Your next lesson will play in 10 seconds. 1  0:05 Definition of an Organelle. 2  0:30 Organelles and Their Functions. 3  6:03 How Plant Cells Are Different. 4  6:19 Plant Organelles. 5  7:51 Lesson Summary.
In the most basic terms, genome is the genetic material of an organism. It is what tells the organism what to be and how to be. The genome is coded in DNA, or in RNA for many types of viruses. The term, genome, was coined in the 1920, as a portmanteau of gene and chromosome.
Genes are sections of DNA. A single gene is marked in Figure 1.1.6. Each chromosome can have over 1000 genes. The difference between one gene and the next is the:â¢ order of bases along the DNA strandâ¢ length of the DNA strand.The order of the bases along the DNA strand is the genetic code..1 DNA the molecule Organisms on Earth have many differences. Not many people would confuse an elephant with an earthworm, a tree with a tarantula or a penguin with a python. However, at one level the differences between organisms are not as great as you might think.