Genetics Primer:

1. Genetics Primer: SBI 4UI Mrs. Tuma

2. Test Your Genetic IQ: • The Human Genome contains 3 billion base pairs. True or False?

3. Test Your Genetic IQ: 1. The Human Genome contains 3 billion base pairs. True or False?

4. Test Your Genetic IQ: 2. The human genome contains about 100 000 genes. True or False

5. Test Your Genetic IQ: 2. The human genome contains about 100 000 genes. True or False (It probably has about 15 000- 20 000 genes.)

6. Test Your Genetic IQ: 3. There are twice as many mutations in sperm versus ova. True or False

7. Test Your Genetic IQ: 3. There are twice as many mutations in sperm versus ova. True (ratio is 2:1) or False

8. Test Your Genetic IQ: 4. Your genes can be affected by past events and exposures of your ancestors. True/False

9. Test Your Genetic IQ: 4. Your genes can be affected by past events and exposures of your ancestors. True (epigenetics) /False

10. Test Your Genetics IQ: 5. Your genes have an impact on how certain therapeutic drugs may affect you. True / False

11. Test Your Genetics IQ: 5. Your genes have an impact on how certain therapeutic drugs may affect you. True / False

12. Some Basic Terms: DNA : deoxyribonucleic acid -- what our inherited material is made of -- in nucleus and mitochondrion RNA: ribonucleic acid – a close copy of DNA

13. Some Basic Terms: Gene: DNA sequence coding for particular characteristic Allele: 2 different forms of the same gene Homozygous: two of the same allele eg: AA or aa Heterozygous: two different alleles e.g.: Aa

14. Some Basic Terms: Dominant: when allele is present it is always expressed Recessive: need 2 copies of allele for the trait– masked by dominant

15. Some Basic Terms: Autosome: non-sex chromosomes (pairs 1-22) Sex chromosome: 23rd pair of chromosomes XX or XY

16. Some Basic Terms:

17. Some Basic Terms: Chromatin: fibres of DNA that make up chromosomes Chromosome: strands of nucleic acids and histone proteins Chromatid: individual chromosome strand

18. The End!