CHAPTER 7 EXTENDING MENDELIAN GENETICS. SECTION 1 CHROMOSOMES AND PHENOTYPES. Two copies of each autosomal gene affect phenotype. One copy comes from the Father, the other from the mother ? What cellular process forms gamete cells? (aka haploid cells?)
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CHAPTER 7 EXTENDING MENDELIAN GENETICS
ex. Sickle Cell Anemia
ex. Huntington’s disease
* The X chromosome is SUPER HUGE as compared to the Y chromosome and must be present in either sex.
4. What do we call the polygenic gene that can mask all the rest?
5. What is the term used to describe the X chromosome that has been turned off in female cells?
6. Why are dominant trait disorders less common in a population than recessive trait disorders?
Read Chapter 7 sections 3 & 4 pages 209 – 217
Screen notes assignment: Part one
Fold your 2 pieces of notebook paper so that each side has 6 boxes.
Everytime you come to a BOLD BLUE or BLACK paragraph heading you will do the following.
In the LEFT BOX you will write the page number and notes to sum up that section.
minimum of 12-15 words!
In the RIGHT box you will sketch a picture to illustrate what you wrote in the left box. Something to help you remember it.
***You must have 8 box sets of words & pictures.
Part two: Investigation on page 219 #’s 1-4, must show work and use COMPLETE SENTENCES!!!
GENE LINKAGE ,MAPPING, & PEDIGREES
chapter 7 sections 3&4
so A to C = 27%
squares = male
circles = females
Half filled means carrier
Filled means affected
Give the Genotypes for IA, IIB, and IIIC
Complete the at home investigation on page 219. Answer ALL the Analyze and conclude questions. (1-4)