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Chap 6 notes
Human Inheritance
Karyotype
• Shows all 46 human
chromosomes
• 23 pairs
• Chromosomes 1-22
are autosomes
(regular
chromosomes)
• The last set of
chromosomes are the
sex chromosomes
(male or female?)
• Female = XX
• Male = XY
The Sex Chromosomes
• The sex
chromosomes carry
genes that determine
whether a person is
male or female. They
also carry genes that
determine other
traits.
Mutation
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Any change in a gene or chromosome
May have no effect
May have minor effect
May have MAJOR effect
Genetic Disorders
• Cystic Fibrosis (CF)
http://youtu.be/Twjg7v-pTO4
• Sickle Cell Disease
• Hemophilia
• Down Syndrome
http://youtu.be/-_-P4t2jR1g
A Pedigree
• A pedigree is a chart or “family tree” that
tracks which members of a family have a
particular trait.
A Hemophilia Pedigree
• The pedigree shows the inheritance of
hemophilia, a sex-linked disorder in a family.
Meiosis Square Dance
• http://youtu.be/eaf4j19_3Zg
Chap 5/6 review guide
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COMPLETE SENTENCES!!!
Pg 159, problems 1a,b,c
Pg 167, problems 1c, 2a,b
Pg 174, problem 1a,b, 2a,b
Pg 183-184, problems 1-4, 6-9, 11, 13, 17-19,
21-24
• Page 203, 2a,b,c
• Pg 215-216, problems 2, 6, 7, 13, 14, 21