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| in independent assortment (3 things can happen) |
1)genes assort independently because they're on different chromosomes or far apart on the same chromosome 2)genes on the same chromosome are completely linked and no independent assortment occurs 3)genes on the same chromosome are incompletely linked |
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farahlou9 Thu, 18 Feb 2010 03:28:11 GMT |
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| calculating recombination frequencies |
# of recombinent progeny
________________________ X 100%
total # of progeny |
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farahlou9 Thu, 18 Feb 2010 03:28:11 GMT |
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| distances between genes are proportional to |
likelihood of recombination |
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farahlou9 Thu, 18 Feb 2010 03:28:11 GMT |
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| If 2 genes are located close together |
less likely to assort independently |
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farahlou9 Thu, 18 Feb 2010 03:28:11 GMT |
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| if two genes are farther apart |
more likely to assort independently because there is a higher chance that recombination will separate them |
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farahlou9 Thu, 18 Feb 2010 03:21:28 GMT |
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| crossing over can occur |
at multiple sites along the chromosome |
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farahlou9 Thu, 18 Feb 2010 03:21:28 GMT |
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| Principle of Independent Assortment |
when alleles separate during meiosis, they do this independently of other alleles at other loci |
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farahlou9 Thu, 18 Feb 2010 03:21:28 GMT |
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| Principle of Segregation |
each diploid (2n) individual has 2 alleles that separate during meiosis such that each gamete will only contain 1 allele |
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farahlou9 Thu, 18 Feb 2010 03:21:28 GMT |
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| sex-limited characteristics |
autosomal genes that are ONLY expressed in one sex |
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farahlou9 Thu, 11 Feb 2010 22:24:35 GMT |
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| dominant epistasis |
when the presence of the dominant allele masks the effects of the other allele |
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farahlou9 Thu, 11 Feb 2010 22:23:31 GMT |
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| sex-influenced characteristics |
autosomal genes that are more likely to be expressed in one sex |
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farahlou9 Thu, 11 Feb 2010 22:21:56 GMT |
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| Genetic maternal effects |
phenotype of offspring determined by genotype of mother |
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farahlou9 Thu, 11 Feb 2010 22:21:56 GMT |
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| Duplicate Recessive Epistasis |
if alleles at either of the 2 loci are recessive (then_____is supressed) |
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farahlou9 Thu, 11 Feb 2010 22:21:56 GMT |
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| Epistasis |
alleles of one gene mask effects of a second gene at a different locus |
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farahlou9 Thu, 11 Feb 2010 22:15:37 GMT |
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| Multiple Alleles: O |
ii (allele i is recessive) |
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farahlou9 Thu, 11 Feb 2010 22:15:37 GMT |
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| Multiple Alleles: AB |
IAIB |
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farahlou9 Thu, 11 Feb 2010 22:15:37 GMT |
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| Multiple Alleles: B |
IBIB or IBi (Alleles A and B are codominant) |
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farahlou9 Thu, 11 Feb 2010 22:15:37 GMT |
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| Multiple Alleles: A |
IAIA or IAi |
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farahlou9 Thu, 11 Feb 2010 22:11:59 GMT |
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Blood Donor: AB
Blood Recipient: ? |
-AB |
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farahlou9 Thu, 11 Feb 2010 22:11:59 GMT |
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Blood Donor: B
Blood Recipient: ? |
-B or AB |
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farahlou9 Thu, 11 Feb 2010 22:11:59 GMT |
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Blood Donor: A
Blood Recipient: ? |
-A or AB |
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farahlou9 Thu, 11 Feb 2010 22:11:59 GMT |
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Blood Donor: O
Blood Recipient: ? |
-A, B,AB, or O |
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farahlou9 Thu, 11 Feb 2010 22:09:27 GMT |
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| Antibodies |
a type of protein that stimulates an immune response after binding an antigen |
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farahlou9 Thu, 11 Feb 2010 22:09:27 GMT |
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| Antigens |
a substance that causes an immune response if it is foreign to the body |
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farahlou9 Thu, 11 Feb 2010 22:09:27 GMT |
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| Red Blood Cell type O: antibodies present? antigens present? |
-Anti-A and Anti-B
-no antigens |
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farahlou9 Thu, 11 Feb 2010 22:09:27 GMT |
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| Red Blood cell type AB: antibodies present? antigens present? |
-none
-A and B antigens |
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farahlou9 Thu, 11 Feb 2010 22:07:01 GMT |
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| Red Blood cell type B: antibodies present? antigens present? |
-Anti-A
-B antigen |
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farahlou9 Thu, 11 Feb 2010 22:07:01 GMT |
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| Red Blood cell type A: antibodies present? antigens present? |
-Anti-B
-A antigen |
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farahlou9 Thu, 11 Feb 2010 22:07:01 GMT |
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| multiple alleles can occur at the same________ |
locus |
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farahlou9 Thu, 11 Feb 2010 22:07:01 GMT |
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