Sunday, May 22, 2016

Message to Incoming Students 5-26-16

Welcome incoming juniors.  Next year will be my first year teaching biology to juniors rather than sophomores.  I have had the opportunity to work with some of you are sophomores in forensics and others I have not.  I look forward to working with each of you.  Please take some time today to review the syllabus and to read the "Info for Parents and Students" section.

Monday, April 6, 2015

Answer Key to Genetics Study Guide

2.  46
3.  23  males xy and females xx
4.
homozygous, heterozygous, genotype, phenotype, dominant, recessive, allele - see blog post under 3rd nine weeks link
incomplete dominance - the heterozygous genotype shows a blend between the two traits (like mixing paint - red and white make pink)
codominance - the heterozygous genotype produces both traits red and  white make red and white stripes or red and white spots.
sex-linked - the gene is found on the x  chromosome.  Males only get one gene for it and therefore, the traits are more common in males (colorblindness, hemophilia are common examples)
meiosis - division of sex cells or gametes, produces 4 haploid gametes
haploid - half the number of chromosomes
diploid - full set of chromosomes
crossing over - when mother and father chromosomes exchange genes during prophase 1 of meiosis

5.  To do this, know the steps for interpreting a pedigree on your bold  print sheet.
6.  Review blood type problems from Thursday and Friday
9.  We went over all other problems in class except the first pedigree.  It is autosomal dominant

Friday, March 27, 2015

Monday, March 23, 2015

Answer Key to 3rd Nine Weeks Study Guide