12/7-12/8 Scribe Post

12/7/10 Post

On Tuesday as we walked into class Mrs. Stein stamped our homework consisting of up 39-46. Then we discussed the homework and what everyone thought about it. Next we took some notes on pedigrees. The notes consisted of:

Pedigrees are used to trace disease through a family
Auto recessive disorders:
-Tay Sachs- degenerative nerve disease
-Death early in age
-Most common in Jewish population
Cystic Fibrosis- causes mucus build-up in the lungs, digestive system and liver problems
-Most effected in the northern European origins
Phenylketnuria (PKU)- lack of enzyme needed to break down phenylalanine, causes mental retardation
Autosomal Dominant Disorder:
-Huntington's disease- nervous system disease which causes loss of muscle function
Achondroplasia- a form of dwarfism
Codominant Disorders:
-Sickle cell disease
-Sickle cell anemia- abnormal shaped RBC's which do not carry oxygen effectively
Chromosomal Abnormalities and Non- Disjunctions:
-Non-disjunction in meiosis results in gametes with abnormal chromosomes number
-Most cases produce gametes that are not viable
Turner's Syndrome:
-Female with only one X chromosome
-Sterile
Klinefelter's Disease Syndrome:
-Male XXY, XXXY ,XXXXY
-Sterile

Taking notes and discussing the homework took up all of the class time on Tuesday.

Homework:
- up 53-56 (optional)
- up 47-52
- Quiz on Thursday

12/8/10 Post

In class today Mrs. Stein checked in our homework on pedigrees and genetic disorder problems which consisted of pages 45-52 in our unit packet. Then we went over the homework in our packets from both 12/7 and 12/8. Due to shortened periods we only had enough time to go over the homework and discuss what will be on the quiz tomorrow.

Homework:
-up 67-71
-up 53-56 (optional)
-Quiz tomorrow

The next scribe will be Alex Jackman.