DNA Definition
What Is DNA?

DNA Definition:
DNA stands for “deoxyribonucleic acid”, and it is the molecule that makes up the genes.

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20170529 DNA 01
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20170529 DNA Definition 02
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20170529 DNA Definition 03
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DNA is usually found near the center of a cell, and eukaryotes would protect the DNA by storing it inside the nucleus.  However, because prokaryotes do not have any nucleus, they simply store DNA near the center area of the cell, unprotected by any nucleus.

 

Next Generation Science Standards:

HS-LS1-1. Construct an explanation based on evidence for how the structure of DNA determines the structure of proteins which carry out the essential functions of life through systems of specialized cells.

HS-LS1-2. Develop and use a model to illustrate the hierarchical organization of interacting systems that provide specific functions within multicellular organisms.

HS-LS1-3. Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.

HS-LS3-1. Ask questions to clarify relationships about the role of DNA and chromosomes in coding the instructions for characteristic traits passed from parents to offspring.

What Science Does this Comic Teach?

Unit: Genetics

⇒Chapter: DNA

⇒Topic: DNA Definition

Additional Information

Eukaryotic Cells

They are cells which have nuclei (singular: nucleus).
It is better to have a nucleus because nucleus serves as a protection for a cell’s DNA.

Prokaryotic Cells

They are cells which have no nucleus.  An example of prokaryotic cells would be bacteria.

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