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Inheritance patterns
| Term | Definition |
|---|---|
| The law of dominance | Some alleles are dominant while others are recessive |
| The law of segregation | Organisms inherit two copies of each gene, one from each parent, but only pass on one copy in their gametes. |
| The Law of independent assortment | Genes for different traits assorting independently during gamete formation. It means that one trait doesn't affect the inheritance of another. |
| Incomplete dominance | Heterozygous phenotype is a blend, neither allele is fully dominant or recessive. |
| Codominance | Both traits are fully and separately expressed. |
| AB blood is an example of what inheritance? | Codominance |
| A and B are ____ over i | dominant |
| Type O blood has a genotype of____lacking both ___ __ ___ ______ | ii, lacking both A and B antigens |
| People with type A blood have what type of antibodies | Anti-B |
| What blood type can type A people receive from? | A or O |
| What antibodies do AB blood have? | none |
| What can someone with type O blood only receive from___ but they have no A or B antigens so they can give to___ | O, anyone |
| Multiple alleles | Having more than two alleles for one gene |
| Polygenic inheritance | When a trait is produced by two or more genes and usually results in a wide range of phenotypes. Continuous variation. |
| Epestasis | When one gene overshadows another. |
| What is an example of epistasis? | Albanism |
| Linked-genes | Located close together on the same chromosome so they will be inherited together. |
| Example of linked genes. | Blonde hair and blue eyes, red hair and freckles |
| When do linked genes get separated | During crossing over |
| How many autosomes do we have? | 22 |
| What is the 23 pair of sex linked traits? | sex chromosomes |
| What chromosomes are females | XX |
| What chromosomes are males | XY |
| Females can be _____ of the recessive X linked traits _______ expressing them. | Carriers, without |
| Males only have _ _ chromosome so whatever that chromosome expressesing is what will show up, no matter it being dominant nor recessive, because their is no other allele (second _) to mask it. | 1 x, x |
| X - linked recessive disorders, like colorblindness, are much more_____ in males. | common |
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