Term
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Definition
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Term
| # of alleles in each person, and where they come from |
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Definition
| 2....1 from mom + one from dad |
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Term
| Who is the "father of genetics"? |
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Definition
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Term
| What did Mendel use for his experiments? |
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Definition
| Pea plants that he pollinated by hand |
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Term
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Definition
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Term
| Letter examples of Heterozygous and Homozygous (A and a) |
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Definition
AA and aa are homozygous
Aa is a heterozygous |
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Term
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Definition
| The trait displayed is the pheotype |
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Term
| What is a monohybrid cross? |
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Definition
| A cross for 2 heterozygotes(Aa) for 1 gene. |
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Term
| What does P, F1, and F2 stand for? |
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Definition
P=Parent
F1= filial 1
F2=filial 2 |
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Term
| What is a dihybrid cross? |
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Definition
| A cross of heterozygotes for 2 genes |
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Term
| What is Mendel's law of segregation? |
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Definition
-2 alleles of each gene are packaged into separate gametes
—They segregate or move apart from each other during gamete formation
—When diploid cells undergo meiosis, homologous chromosomes separate
—During fertilization, gametes join carrying one member of each homologous pair
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Term
What is Mendel's law of independent assortment?
Bonus: How did Mendel discover it? |
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Definition
—Alleles of different genes move independently into gametes
—Alleles for one gene do not influence the segregation of alleles for another gene
—Mendel found some trait combinations that did not yield the expected results
Bonus Answer:Dihybrid Cross
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Term
| What is incomplete dominance? Example? |
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Definition
a. Heterozygous phenotype intermediate between 2 homozygotes
b. Example from book red and white flowers produce pink offspring
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Term
What is codominance?
Example? |
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Definition
heterozygote fully expresses 2 different alleles
Blood type |
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Term
| What is the universal donor? |
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Definition
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Term
| What is the universal acceptor? |
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Definition
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Term
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Definition
| multiple phenotypic expressions |
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Term
| Why are pleiotropic genes bad if mutated? |
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Definition
a. conditions can be difficult to trace through families b/c individuals w/ different subsets of symptoms may appear to have different disoders.
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Term
What is epistasis?
Example? |
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Definition
One gene affects the expression of another
male pattern baldness and widow’s peak example
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Term
What is a phenotypic trait?
3 examples? |
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Definition
a. Phenotype reflects the activities of more than one gene
b. 3 main examples from book Eye color, skin color, and height
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