Term
| when is gender determined? |
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Definition
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Term
| what two sets of organs are created during the 5th week of prenatal birth? |
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Definition
| Unspecialized Gonads and Reproductive Ducts |
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Term
| What is the difference between Mullerian and Wolffian reproductive ducts? |
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Definition
Wolffian: Male ducts,
Mullerian: Female Ducts |
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Term
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Definition
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Term
| what is the SRY gene and where is it found? |
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Definition
presence of the SRY gene determines if the baby will be a boy or not.
it is found on the Y chromosome |
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Term
| what does HETEROGAMETIC mean and which gender does it describe? |
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Definition
it means that the genes are XY (hetero, different)
it is found in the germ line cells (testes) of males. |
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Term
| what does HOMOGAMETIC mean and which gender does it describe? |
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Definition
it means that the genes are XX (homo, same)
it is found in the germ line cells (ovaries) of females |
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Term
| which is bigger? the X or Y chromosome? |
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Definition
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Term
did you know that the X chromosome has more than 1500 genes?
and the Y chromosome has like 231 genes.. |
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Definition
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Term
| what is the PAR? and is it on the X or Y chromosome? |
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Definition
PAR = pseudoautosomal regions
they make up only 5% of the genes and are located at the tips of the Y chromosome |
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Term
| what is the MSY? and is it on the X or Y chromosome? |
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Definition
MSY = male specific region
makes up the large middle part of the Y chromosome. about 95% |
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Term
SRY and AZF are found on the Y chromosome.
what are they used for? |
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Definition
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Term
which are functions of the SRY gene found on Y chromosomes?
a) found in the MSY of the Y chromosome
b) found in PAR of the Y chromosome
c) promote creation of male structures
d) demote creation of female structures |
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Definition
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Term
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Definition
traits that are influenced by Gender.... obviously.
so a heterozygous male will be bald.
but a heterozygous female will not just because she's female. |
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Term
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Definition
in females, because they have two X chromosomes, one will be deactivated.
the inactivated chromosome is called the BARR BODY |
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Term
| what is the Barr Body? X or Y chromosome? |
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Definition
| Barr body is the X chromosome in girls that is inactivated due to X-inactivation. |
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Term
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Definition
| genes on inactive-X's that encodes an RNA that binds to it. |
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Term
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Definition
| when Methyl groups bind to DNA and suppress gene expression |
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Term
| True or False? imprints are erased and recreated after the gender is determined. |
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Definition
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Term
| what is mtDNA? where is it found? |
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Definition
mtDNA is found inmitochondria
they have a high exposure to free radicals
they are more prone to mutation that regular DNA |
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Term
| mitochondria interesting facts |
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Definition
-mitochondria have "mini-chromosomes"
-mitochondrial genes are passed down through the mother |
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Term
heteroplasmy deals with which organelle?
what is heteroplasmy? |
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Definition
mitochondria.
it is the idea that phenotype may change due to the amount of mutated mitochondria |
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Term
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Definition
| when one gene(1) cannot be expressed because the other gene(2) effected the trait gene (1) wanted to effect |
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Term
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Definition
| when genes have ongoing, domino effecting, effects. |
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Term
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Definition
| some phenotypes can be expressed with different genes |
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Term
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Definition
| traits that are effected by the environment, not genetics |
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