GabbyM's Muddiest Point

My muddiest point for this chapter is what kind of errors can happen during meiosis.

Paul s muddiest point

My muddiest point of unit 5B is the difference between trisomys and monosomys and how they create a genetic disorder/syndrome.

Thanks,
Paul S

Fragile X

Fragile X syndrome is caused by changes in a part of the x chromosone, and is an inherited intellectual disability. This has both mental and physical symptoms.
-Flat feet, flexible joints, large body size, large forhead, long face, and soft skin.
There are very few ways to detect the syndrome other then Large head circumference in babies, Mental retardation, and Large testicles after the start of puberty. There is no treatment for fragile X. Males are usually effected more by the disease then females. Fragile X syndrome occurs 1 in 4,000 males, and 1 in 8,000 females. This syndrome does not effect the life expectancy of males or females.

Paul Salay

AndyD Scribe Class 12-6-11

Today in class we learned about Genetic Disorders!

We started out by BrooklynC stamping our homework stamp-sheet and then discussing the homework with our groups of 3. After everything was settled at the beginning of class we went over the homework as a class and went over the problems that were unclear to us. After the class discussion we took some notes on Probability, What autosomal was, and what sex linked was. Probability was one of the things we discussed as we went over our Pedigree homework. We discussed the chances of having male and female babies and babies with disorders.

We also made the probability ratio of males and females in our class and their siblings

(pictured below). Males on bottom females on top because for some reason the image turned out awkward.

Homework

• Up 51-52
• Read Chapter 14.2 in textbook.
• Quiz on Thursday on the Punnet Square w/ co-dominance and etc.

Next Scribe will be- MichaelM

Andy D Scribe Post 12-5-11.

Today in class we learned about PEDIGREES!

In class we first started out by discussing our homework with our new seating chart and groups that Mrs. Stein arranged for us. After our discussion with our peers we went over the correct answers as a class and discussed any of the questions that were kind of weirdly worded and tricky. After going through the answers we got into more detail with Blood typing and sex linked problems, especially the hybrid blood types.

Please ignore the names mentioned in the Pedigree above..... However the main lesson of today was Pedigrees. What are Pedigrees? They a chart made up of family members from one generation continuing on till the current. Pedigrees are used to trace disease or a specific trait within a family. Males in the chart are shown as Squares, and Females are shown as circles. However people that are shaded in have that trait or disease the is being tracked, women however with a half shaded circle are carriers of the disease or trait and may pass it on to one of their children and so on.

HOMEWORK!

• UP 47-50
• Read Chapter 14.1 in the textbook ( no duh where else?)
• Quiz on how to solve all of the punnet squares and problems on how to find a genotype and phenotype ( codominance etc.), Pedigrees will also be on the quiz!

Late Scribe, finally letting me post!

In class on 11/29/11, we got new seats! We took a small quiz on meiosis, which we got to look over with our new seat partners. We then took a closer look at meiosis and mitosis using a double bubble map, which was the homework due for the day. Meiosis is the production of gametes, which are haploid cells (cells with 23 chromosomes instead of the typical 46.) We discussed meiosis for the rest of the class with five minutes to spare to work on the homework, which is UP 29-31 and to read 11.1 and 11.2.

Next scribe will be Joey M!

Class on 11/30-12/1

11/30

In class today we went over our homework which was trying out the punnet squares. After we went through the homework, we partnered up and did an activity where we flipped a coin to determine the phenotypes of each item. We then drew the baby according to the traits we got. The only homework was to finish the questions that went with the baby lab.

12/1

Today in class we turned in our baby labs. After that we took a self check quiz on vocabulary and using punnet squares. We then learned about Incomplete Dominant traits which are traits that have twodominant genes with both being expressed. We then learned how to use dihybrid punnet squares.(Look down for more) Our homework is to do pages UP 33-38 and read 11.3!

http://www.youtube.com/watch?v=cvTt-azvHsA

ANDY is the Next Scribe