thursday, apr 3 rd , 2014
DESCRIPTION
Did you know… The human brain is 80% water. If you shrunk a car to the size of a cockroach, the roach could outrun the car. Cockroaches can run ~200 scale mph. Thursday, Apr 3 rd , 2014. Are our traits determine by nature or nurture or both? Explain why you think that. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Thursday, Apr 3 rd , 2014](https://reader035.vdocuments.us/reader035/viewer/2022062722/56813ad0550346895da2f861/html5/thumbnails/1.jpg)
Did you know…
The human brain is 80% water.
If you shrunk a car to the size of a cockroach, the roach could outrun the car. Cockroaches can run ~200 scale mph.
![Page 2: Thursday, Apr 3 rd , 2014](https://reader035.vdocuments.us/reader035/viewer/2022062722/56813ad0550346895da2f861/html5/thumbnails/2.jpg)
1. Are our traits determine by nature or nurture or both? Explain why you think that.
2. Why do gamete cells have haploid number of chromosomes, instead of a diploid number?
3. Curly hair (H) has incomplete dominance over straight hair (h). A wavy haired mom is crossed w/ a straight haired dad. Draw a Punnett Square & give the genotypes & phenotypes.
![Page 3: Thursday, Apr 3 rd , 2014](https://reader035.vdocuments.us/reader035/viewer/2022062722/56813ad0550346895da2f861/html5/thumbnails/3.jpg)
Change in DNA sequence
Causes: DNA Damage
UV light (sunlight), radiation, or chemicals Mistakes during DNA replication/copying
Mutations in gametes only are inheritable
![Page 4: Thursday, Apr 3 rd , 2014](https://reader035.vdocuments.us/reader035/viewer/2022062722/56813ad0550346895da2f861/html5/thumbnails/4.jpg)
Original Strand: ACG TGG CAA AGC
1. Deletion: base(s) deleted from sequence ACG TGG AAA GC
2. Inversion: section of bases flipped and re-inserted
ACG GGT CAA AGC
3. Duplication: base(s) repeated ACG ACG TTG CAA AGC
![Page 5: Thursday, Apr 3 rd , 2014](https://reader035.vdocuments.us/reader035/viewer/2022062722/56813ad0550346895da2f861/html5/thumbnails/5.jpg)
4. Insertions: base(s) inserted into sequence ACG TGG CAA TAG C
5. Translocation: bases swapped between 2 chromosomes ACG TGG CAA AGC ACG TGG TTT AGC GCA GGT TTT AGC GCA GGT CAA AGC
![Page 6: Thursday, Apr 3 rd , 2014](https://reader035.vdocuments.us/reader035/viewer/2022062722/56813ad0550346895da2f861/html5/thumbnails/6.jpg)
Recessive metabolic genetic disorder
Mutation in gene for enzyme that metabolizes amino acid phenylalanine (Phe)
Treatment: special diet low in Phe Eliminate meats, dairy, & starches