<p>how long is this? any last minute hints?</p>
<p>are calculators allowed? some of those hardy-weinberg..</p>
<p>no calculators, this year theres only 100 MC questions and theres a 10 minute planning period for essays, i guess it would be best to write down all the key terms. I have a feeling there will be a genetics question(since last year was evolution?) so im just gonna list some terms associated with genetics, it would be cool if everyone posted and defined them:
law of dominance
law of segregation
law of independent assortment
dihybrid cross
test cross
incomplete dominance
codominance
polygenetic inheritance
epistasis
linked genes
autosomes
sex chromosomes</p>
<p>how do you do a chi square???</p>
<p>can you jot down notes during the reading period?</p>
<p>wow...it's being changed? 100 questions...in how much time? and are there supposed to be more essay questions, or what?
'bout how many points for a 5, and out of how many?</p>
<p>i THINK they took away 10 minutes from the multiple choice, along with 20 questions and added 10 minutes to the free response, but as a planning period, in the period you can jot down notes but you cannot start writing your essays in the pink booklet</p>
<p>yeah, its 80 minutes for 100 MC questions
then 10 minutes for planning and 90 minutes for writing in FR</p>
<p>epistasis - 2 or more genes control a single phenotype
autosomes are non-sex chromosomes
independent assortment - each pair of alleles will segregate independently during gamete formation</p>
<p>ap bio will be a joke... just as long as you got an A, you should be fine.</p>
<p>Whats the difference between Law of Segregation and Law of Independant Assortment?</p>
<h2>Law of segregation is when different alleles are distributed amongst different gametes (4 haploid daughter cells). Law of independent assortment occurs in metaphase I, where the homologous chromosomes of meiosis line up, but pair up randomly so that allele's are randomly seperated into the future gametes.</h2>
<p>Hm, any idea about the lab free response?</p>
<p>i dont think theres guaranteed to be a lab free response</p>
<p>Right, it isn't guranteed--but it's likely.</p>
<p>Three hours.</p>
<p>Answer the question!</p>
<p>very important question - when was the last time that there was a question on plants, other than photosynthesis? like life cycles or development</p>
<h2>I saw a 94' practice Biology AP, which went very much into detail on photosynthesis: describing the difference between CAM and C4 plants; knowing the intracacies of each process (RUBP fixes CO2 in C3 plants, PEP using PEP carboxylase fixes to CO2--Oh, remember malate in C4 plants, and malic acid in CAM plants--it's ionized). The question also asked about photosynthesis in general--the phytochrome in each cyclic segment, and cytochrome which transmits electrons.</h2>
<p>Human development is a possibility.
Zygote-morula-blastula-gastrula. Knowing what cleavage is, the archeteron, how protostomes and deuterostomes form, etc.</p>
<p>It's all relatively rudimentary.</p>
<p>hopefully there wont be a lab question this year, but everyone's guessing one maybe on cellular respiration or genetics</p>
<p>i just hope theres not too much on plants (other than photosynthesis)...theres soooooo much to know about it!!</p>
<p>i know about cleavage, morula, etc, im pretty down pat with the human stuff, its the plants that may kill me</p>
<p>I really don't think it would be on plants. I think they're gonna go more into organismal biology--describing what occurs in a nephron--renal cortex and renal medulla. There's just so much biology that it could be on anything to tell you the truth.</p>
<p>im kind of unsure about the reproductive cycle of the plants:
A sporophyte's mother cells undergo meiosis releasing spores, then germinating by mitosis into gametophytes. These gametophytes, the archegonium, and the antheridium, fertilize by the antheridium releasing sperm into the archegonium with an egg, and a zygote develops which becomes another sporophyte and the cycle repeats. Does this sound right?</p>