Friday, March 27, 2009
Fri-Day 1
AP Chem- explained four factors that can cause a change in entropy: change of phase, change in the number of mole of substance(s), change in temperature of substance, and change of the substance to a more or less complex substance.
We then discussed the 2nd Law of Thermodynamics and used it to calculate the change in entropy of the universe for the Haber process (making ammonia).
We then began a Ksp and Titration review sheet to which I will post answers this weekend (and I should have those podcast videos done also; update- the buffer podcast video is now available).
Bio 6/7- we did several problems showing expected blood types as a result of crosses between various pairs of blood genotypes.
We then discussed sex-linked traits, which are any traits determined by genes that are located on the X-chromosome of the sex chromosomes. Females have two X chromosomes whereas males have one X and one Y chromosome. Sex-linked phenotype ratios MAY differ from other chromosome phenotypes due to the fact that the Y chromosome does not carry many genes because it is smaller/consists of less DNA.
We saw that the genetic sex of offspring is determined by the male parent; half of all male gametes contain an X chromosome and the other half of all male gametes contain a Y chromosome. When X chromosome sperm cells fertilize an egg, a female is produced but when a Y chromosome sperm cell fertilizes an egg, a male is produced.
We then saw that the evidence for a sex-linked trait is that, if there is a cross between a "normal" male and a heterozygous-genotype with "normal"-phenotype female, the trait phenotype is EXPRESSED/SEEN exclusively in males.
We then finished up our last two labs. The write-ups for these labs are due on Tuesday.
Bio 8-we did several problems showing expected blood types as a result of crosses between various pairs of blood genotypes.
We then discussed sex-linked traits, which are any traits determined by genes that are located on the X-chromosome of the sex chromosomes. Females have two X chromosomes whereas males have one X and one Y chromosome. Sex-linked phenotype ratios MAY differ from other chromosome phenotypes due to the fact that the Y chromosome does not carry many genes because it is smaller/consists of less DNA.
We saw that the genetic sex of offspring is determined by the male parent; half of all male gametes contain an X chromosome and the other half of all male gametes contain a Y chromosome. When X chromosome sperm cells fertilize an egg, a female is produced but when a Y chromosome sperm cell fertilizes an egg, a male is produced.
We then saw that the evidence for a sex-linked trait is that, if there is a cross between a "normal" male and a heterozygous-genotype with "normal"-phenotype female, the trait phenotype is EXPRESSED/SEEN exclusively in males.
We then discussed the 2nd Law of Thermodynamics and used it to calculate the change in entropy of the universe for the Haber process (making ammonia).
We then began a Ksp and Titration review sheet to which I will post answers this weekend (and I should have those podcast videos done also; update- the buffer podcast video is now available).
Bio 6/7- we did several problems showing expected blood types as a result of crosses between various pairs of blood genotypes.
We then discussed sex-linked traits, which are any traits determined by genes that are located on the X-chromosome of the sex chromosomes. Females have two X chromosomes whereas males have one X and one Y chromosome. Sex-linked phenotype ratios MAY differ from other chromosome phenotypes due to the fact that the Y chromosome does not carry many genes because it is smaller/consists of less DNA.
We saw that the genetic sex of offspring is determined by the male parent; half of all male gametes contain an X chromosome and the other half of all male gametes contain a Y chromosome. When X chromosome sperm cells fertilize an egg, a female is produced but when a Y chromosome sperm cell fertilizes an egg, a male is produced.
We then saw that the evidence for a sex-linked trait is that, if there is a cross between a "normal" male and a heterozygous-genotype with "normal"-phenotype female, the trait phenotype is EXPRESSED/SEEN exclusively in males.
We then finished up our last two labs. The write-ups for these labs are due on Tuesday.
Bio 8-we did several problems showing expected blood types as a result of crosses between various pairs of blood genotypes.
We then discussed sex-linked traits, which are any traits determined by genes that are located on the X-chromosome of the sex chromosomes. Females have two X chromosomes whereas males have one X and one Y chromosome. Sex-linked phenotype ratios MAY differ from other chromosome phenotypes due to the fact that the Y chromosome does not carry many genes because it is smaller/consists of less DNA.
We saw that the genetic sex of offspring is determined by the male parent; half of all male gametes contain an X chromosome and the other half of all male gametes contain a Y chromosome. When X chromosome sperm cells fertilize an egg, a female is produced but when a Y chromosome sperm cell fertilizes an egg, a male is produced.
We then saw that the evidence for a sex-linked trait is that, if there is a cross between a "normal" male and a heterozygous-genotype with "normal"-phenotype female, the trait phenotype is EXPRESSED/SEEN exclusively in males.
# posted by C @ 3:35 PM 
