Notes for Life Structure and Function, Chapter 5, Section 2
Genetics Since Mendel
But note that colorblind and calico are different even though then are both sex-linked genes…Why?
jsimons
nkrawczeniuk: Mutations are caused by a trait in a gene that is expressed differently. The gene is expressed differently because of the chemical mutation in the cell. Most moutations mutations (sp.) are not harmful comma and some even help the organism. aquick: cystic fibrosis is a genetic genetic (sp.) disorder that is caused by recessive genes ZGadhoke:
every organism= spacific (sp. specific) # of chromosomes
Mistakes during meiosis= more or less chromosomes than needed
aneuviller: six pairs of genes control your skin tone==
krogers: Polygenic inheritance: Occurs when group of gene pairs act together = trait
asmith: color blindness; sex-linked disorder
cconyngham: pedigree=visual tool to follow traits through generations of family
LiaS: males have XY chromosomes, and females have XX
Ngadhoke: Down Syndrome occurs when you have 3 instead of 2 chromosome 21
mnardone: when the offspring of two homozygous parents show an intermediate phenotype= incomplete dominance
gedmunds: cystic fibrosis is a disorder inherited when both parents pass down a faulty CFTR (cystic fibrosis transport regulator) gene This is not from the text (CFTR).
mpatel: More than three allele (leave out the word allele) phenotypes of that trait are produced when a trait is controlled by multiple alleles.
kzarnoski: PKU = recessive disorder when someone does not have the enzymes breakdown of certain ingredients in some artificially sweetened drinks, and so sodas like that are marked Chennigan: Humans usually have 23 pairs of chromosomes.
ntullo: Sometimes, more often in males than females, the chromosomes don't separate during meiosis, making them more prone to get genetic disorders. This does not happen more often in males. Also, when the chromosome does not separate, it makes any fetus or baby more likely to die (but not always, as in the case of Down's syndrome).
ksmith: homozygous means a pair of alleles the alleles in a pair are the same, such as TT. heterozygous means a pair alleles are different, such as Tt.
Mkulick: Down syndrome and cystic fibrosis are two genetic disorders that occur when there are mutations within recessive genes. kgavin: organisim sp. organism; also I think you mean species = certain # of chromosomes. meiosis process malfunction = fewer or more chromosomes in an organism.Note that Curry already wrote this latter fact.
msweitzer: color blind=genetic disorder more common for males than females
Pcorcoran: two heterozygotes differening=incomplete dominance This does not make sense.
rbarnes-polygenic inheritance has several pairs of alleles that are contributing to the trait.Repeat of Kat's fact.
nshearn: People who carry O blood type can give blood to anyone="universal donor"Good fact from class, but not from text.
mlundin: X rays and radioactive substances can also cause mutation
skwiatek: Cystic fibrosis---a thick mucus replaces the typical thin fluid in lungs and intestional intestinal tract, causing breathing and digestion problems
bgonzalez: Eggs= X Chromosome Sperm= X or Y Chromosome
akozlansky: Down syndrome= genetic mutation when people have 21 pairs of chromosomes instead of 23 Incorrect and a repeat.
arinehouse: Most sex-linked disorders are carried on the X chromosome, so are easier for a male to catch. This is because a female has another X chromosome to dominate the one carrying the disorder.
Notes for Life Structure and Function, Chapter 5, Section 2
Genetics Since Mendel
But note that colorblind and calico are different even though then are both sex-linked genes…Why?jsimons
nkrawczeniuk: Mutations are caused by a trait in a gene that is expressed differently. The gene is expressed differently because of the chemical mutation in the cell. Most moutations mutations (sp.) are not harmful comma and some even help the organism.
aquick: cystic fibrosis is a genetic genetic (sp.) disorder that is caused by recessive genes
ZGadhoke:
- Mistakes during meiosis= more or less chromosomes than needed
aneuviller: six pairs of genes control your skin tone==krogers: Polygenic inheritance: Occurs when group of gene pairs act together = trait
asmith: color blindness; sex-linked disorder
cconyngham: pedigree=visual tool to follow traits through generations of family
LiaS: males have XY chromosomes, and females have XX
Ngadhoke: Down Syndrome occurs when you have 3 instead of 2 chromosome 21
mnardone: when the offspring of two homozygous parents show an intermediate phenotype= incomplete dominance
gedmunds: cystic fibrosis is a disorder inherited when both parents pass down a faulty CFTR (cystic fibrosis transport regulator) gene This is not from the text (CFTR).
mpatel: More than three allele (leave out the word allele) phenotypes of that trait are produced when a trait is controlled by multiple alleles.
kzarnoski: PKU = recessive disorder when someone does not have the enzymes breakdown of certain ingredients in some artificially sweetened drinks, and so sodas like that are marked
Chennigan: Humans usually have 23 pairs of chromosomes.
ntullo: Sometimes, more often in males than females, the chromosomes don't separate during meiosis, making them more prone to get genetic disorders. This does not happen more often in males. Also, when the chromosome does not separate, it makes any fetus or baby more likely to die (but not always, as in the case of Down's syndrome).
ksmith: homozygous means a pair of alleles the alleles in a pair are the same, such as TT. heterozygous means a pair alleles are different, such as Tt.
Mkulick: Down syndrome and cystic fibrosis are two genetic disorders that occur when there are mutations within recessive genes.
kgavin: organisim sp. organism; also I think you mean species = certain # of chromosomes. meiosis process malfunction = fewer or more chromosomes in an organism. Note that Curry already wrote this latter fact.
msweitzer: color blind=genetic disorder more common for males than females
Pcorcoran: two heterozygotes differening=incomplete dominance This does not make sense.
rbarnes-polygenic inheritance has several pairs of alleles that are contributing to the trait. Repeat of Kat's fact.
nshearn: People who carry O blood type can give blood to anyone="universal donor" Good fact from class, but not from text.
mlundin: X rays and radioactive substances can also cause mutation
skwiatek: Cystic fibrosis---a thick mucus replaces the typical thin fluid in lungs and intestional intestinal tract, causing breathing and digestion problems
bgonzalez: Eggs= X Chromosome Sperm= X or Y Chromosome
akozlansky: Down syndrome= genetic mutation when people have 21 pairs of chromosomes instead of 23 Incorrect and a repeat.
arinehouse: Most sex-linked disorders are carried on the X chromosome, so are easier for a male to catch. This is because a female has another X chromosome to dominate the one carrying the disorder.