Exam #1 W 2/10 in class (bring your cheat sheet) Review T 2/9 from 6-8pm in WRW 102. Is this all of your DNA?. Mitochondria have their own DNA. Both Mitochondria and Chloroplast have DNA. Only the egg provides mitochondria to the offspring. Fig 47.3. mitochondria. Human Life Cycle. - PowerPoint PPT Presentation
TRANSCRIPT
•Exam #1 W 2/10 in class(bring your cheat sheet)Review T 2/9 from 6-8pmin WRW 102
Is this all of your DNA?
Mitochondria have their own DNA.
Both Mitochondria and Chloroplast have DNA
mitochondria
Only the egg provides mitochondria to the offspring.
Fig 47.3
HumanLifeCycle
In femalesMom provides 50.000275% and Dad provides 49.999825% of DNA to offspring.
… because Mom provides 100% of mitochondrial DNA
A few diseases are caused by mutations in mtDNA
Pedigree of a mitochondrial disease:(black signifies affected individual)
Which shape represents females?
Pedigree of a mitochondrial disease:
Males and females may be affected by a disease coded on mtDNA, but only females pass it on.
Mitochondrial DNA comparisons can be used to trace ancestry:
Tsar’s Family
During the Bolshevik revolution, the Tsar’s family was captured and executed.
Tsar’s Family
There are many stories about what happened to their youngest daughter Anastasia
Anna Anderson, claimed she was Anastasia
Anna Anderson claimed she was Anastasia, but tests of her mtDNA and one of Anastasia’s maternal relatives did not match.
For more info check out: http://en.wikipedia.org/wiki/Grand_Duchess_Anastasia_Nikolaevna_of_RussiaOr the book “Seven Daughters of Eve” by Bryan Sykes