Transcript Document 7623364

5/25/2016
Title:
Biology
2/15/07
Objectives:
To assess learning about some of the aberrations to
Mendelian genetics and dihybrid crosses and continue to
learn about pedigree analysis
Class Topics
• Hand in W.S. 8.2 before the bell rings please
– 3A hand in W.S. Interpreting Information in a Pedigree
• Chapter 8 Quiz 2 Review
• Chapter 8 –Sex-linked inheritance
– Pedigree lab correction
• Investigating Inherited Traits
• Human traits
"Attitude is a little thing that can make all the difference."
Sir Winston Churchill
Wednesday, May 25, 2016 3:51 AM
Page: 1
5/25/2016
Class Assignments
What
• W.S. 8.2 (DR/Color Blind/Gene Spy)
• Investigating Inherited Traits
By When
2/15/07
2/20/07
• Due this class period
• Due next class period
• Due in the future
Page: 2
5/25/2016
Grade Sheet
Assignments
Your
score
Points
possible
Your
total
score
Total
points
possible
W.S. The Puzzle of Heredity
10
244
Chapter 8 Quiz 1
38
282
Genetics W.S
20
302
Probability and dihybrid crosses
W.S.
10
312
Chapter 8 Quiz 2
39
351
Pedigree lab
10
361
Interpreting Information in a
pedigree
10
371
Percentage
grade
2A – p. 157 (5 pts.)
Page: 3
5/25/2016
Page: 4
5/25/2016
Sex-linked questions
• What do you know about the parents
of a colorblind girl?
• What do you know about the father
of a hemophilia carrier?
Sex-linked Inheritance
Hemophilia
Colorblindness
Pedigree
Page: 5
5/25/2016
Links
• Sex-linked Inheritance quiz
• Blue People of Kentucky
Page: 6
5/25/2016
Beyond Mendel
• Multiple alleles
– More than 2 alleles for a trait
• Rabbit coat color - 4 alleles
• Human blood types - 3 alleles
• Eye color - more than 2 alleles
• Polygenic traits
– Traits controlled by more than one gene
– In humans most traits are polygenic
Page: 7
5/25/2016
Blood Types
• Pheno
• A
Geno
Antibodies
Antigens
• B
• O
• AB
Page: 8
5/25/2016
Page: 9
5/25/2016
Investigating Inherited Traits Lab
• Work with a person of the opposite
gender
• Determine gender and traits using
the coins
• Draw your “child” and answer
questions
– Due next class period
Page: 10
5/25/2016
More about polygenic traits
•
•
•
•
Inheritance is complicated
Phenotypes vary greatly
Ex. Human skin color
Ex. Human height
Page: 11
5/25/2016
From: http://campus.queens.edu/faculty/jannr/Genetics/images/polygenic.gif
Page: 12
5/25/2016
From: http://campus.queens.edu/faculty/jannr/Genetics/images/height.jpg
Page: 13
5/25/2016
From: http://campus.queens.edu/faculty/jannr/Genetics/images/eyecolor.gif
Page: 14