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32 Cards in this Set
- Front
- Back
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Blending theory |
When children are a mix of parents like mixing traits |
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Who found the principles of genetics |
Gregor mendel |
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Why was gregor mendel successful |
Because he studies mathematics He used pea plants with could cross fertilize and could produce numerous offspring in a short vegetation time and yielded 2 possible outcomes |
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Were other scientists using this? |
No |
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Did he study math |
Yes |
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Did darwin respond? |
No |
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Did being a monk help |
No |
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Is the F1 in monohybrid cross homo or heterozyous |
Heterozgous |
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What does F mean |
Filial or son |
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What is produced in F2 |
3 to 1 phenotypic ratio 1 to 2 to 1 genotypic |
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What is the ratio to a dihybrid cross |
9:3:3:1 |
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Test cross ratio |
1 to 1 to 1 to 1 |
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Law of segregation |
Factors or alleles separate during gamete formation |
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Each gamete has one factor? |
Yes |
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Fertilization restores the presence of 2 factors? |
Yes |
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1 factor must be dominant? |
No |
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Each individual contains 2 allels for each trait? |
Yes |
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What are alleles |
Alternative versions of the genes |
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Location of alleles |
Locus |
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When alleles are expressed with dominant and recessive. Which shows? |
Dominant |
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Test cross: |
Mating between an unknown genotype with a homozygous recessive Monohybrid has 1 to 1 ratio Di has 1 to 1 to 1 to 1 |
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Law of Independent Assortment |
Alleles separate independently |
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What are the chances of two heterozygous parents to have a homozygous recessive child |
25% |
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What is a carrier |
A carrier is a heterozygous individual that has an unhealthy alleles and can pass it to the next generation without any symptoms |
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Incomplete dominance |
When neither allele is dominant over the other expresses intermediate characteristics an example of this is the Snapdragon flower when you mix red and white you get pink |
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Codominance |
Is like incomplete dominance but neither allele is dominant over the other and does not express intermediate characteristics |
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Pleiotropy |
One gene affects many characteristics an example is like the gene for sickle cell it changes many things in the body |
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What happens when you cross hetero blood type group A with hetero B |
All options |
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Polygenic inheritance |
When many genes control one characteristic an example is skin and eye color |
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Multiple alleles in population are observed in blood types A,B,O and a b |
. |
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Rule of multiplication |
Two events have to happen at the same time |
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Rule of addition |
Events that contribute to the same outcome |
