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Section 9
Genetics
| Question | Answer |
|---|---|
| Who is the father | Gregor Mendel |
| What type of plant did he used in his experiment's ? | Pea plant |
| Gene | is a segment of DNA that encodes for a trait |
| Allele | they are different forms of the same gene |
| Dominant Allele | masks any other gene form present (A) |
| Recessive Allele | the gene form that is being masked by the dominant allele (a) |
| Homozygous | an individual that has two of the same alleles for a gene (AA) |
| Heterozygous | an individual that has two different alleles for a gene (Aa) |
| Test Cross | is crossing an unknown individual with a recessive individual to determine whether the unknown individual is heterozygous or homozygous |
| Incomplete Dominance | neither allele masks the other (intermediate/mix) (red flower X white flower ---> pink flower) |
| Codominant Allele | neither allele masks the other (both alleles are shown) (EX. roan coat color in cows --> is a mixture of red and white hairs) |
| Multiple Alleles | is when more than two alleles influence the same gene |
| Polygenic traits | traits such as hair color that are controlled by more than one gene |
| Karyotypes | they are diagrams that arrange chromosomes from largest to smallest in order to detect diseases caused by nondisjunction or other abnormalities |
| Pedigree | a chart, similar to a family tree that traces a particular trait or disease |
Created by:
martingomez134
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