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Genetics
Science 8
| Term | Definition |
|---|---|
| What do genes contain? | Hereditary information |
| What are genes made up of? | DNA |
| Where do cells store DNA? | In the chromosomes in the nucleus. |
| How are traits passed on? | from generation to generation |
| Where do genes come from in asexual reproduction? | A single parent. (They are genetically identical to the parent.) |
| Where do genes come from in sexual reproduction? | Half of the genes come from each parent. |
| Selective breeding | people select plants or animals that have specific traits and breed them together |
| How is the probability of traits being passed on determined? | Punnett squares and pedigree charts |
| digestive system | breaks down food into molecules that can be absorbed into cells |
| chemical breakdown | stomach acid and saliva |
| mechanical breakdown | chewing/grinding by the teeth |
| Respiratory system | supplies oxygen and removes carbon dioxide |
| what do cells use oxygen to do? | release energy stored in food |
| Excretory system | disposes of dissolved waste and removes excess heat energy |
| nervous system | controls bodily functions like breathing. |
| endocrine system | controls body functions (growth and development) by making hormones |
| reproductive system | makes sex cells necessary for production of offspring |
| female sex cell | egg |
| male sex cell | sperm |
| immune system | special cells that protect the body from disease |
| disease | breaks down the structures or functions of an organism |
Created by:
carozza
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