Term
| Are both alleles for a trait dominant? |
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Definition
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Term
| What is intermediate between the 2 homozygous parents? |
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Definition
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Term
| What are more than 2 alleles that control a trait? |
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Definition
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Term
| What produces more than 3 phenotypes? |
|
Definition
| traits controlled by multiple alleles |
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Term
| What acts together to produce a trait, which crates more variety in phenotypes? |
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Definition
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Term
| What is controlled by polygenic inheritance, such as hair and eye color? |
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Definition
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Term
| What 3 things can a mutation be? |
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Definition
-harmful
-beneficial
-have no effect |
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Term
| What is caused by more or fewer chromosomes than normal? |
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Definition
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Term
| What causes Down Syndrome? |
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Definition
| extra copy of chromosome 21 |
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Term
| Which parent has a ressessive allele responsible for the disorder and pass it to their child? |
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Definition
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Term
| Why do the parents not show symptoms? |
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Definition
| because they are heterozygous |
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Term
| What is a homozygous recessive disorder? |
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Definition
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Term
| What are the chromosomes that determine the sex of an organism? |
|
Definition
| XX in females and XY in males |
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Term
| What is an allele inherited on an X or Y chromosome? |
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Definition
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Term
| What is a color blindness (a sex-linked gene) disorder caused by? |
|
Definition
| a recessive allele on the X chromosome |
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Term
| What follows a trait through generations of a family? |
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Definition
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