Basic Genetics

15 Points Per Correct Answer - No time limit  

1. The 'instructions' contained in every cell that has a nucleus are 'written' in... Sugars DNA T-RNA Mitochondria

2. Humans have how many total chromosomes? 46 34 48 42

3. Which of the following creatures has the most chromosomes? Dog Fruit fly Goldfish Human

4. Humans have two chromosomes that determine sex- X and Y. Which of the following karyotypes (chromosome types) would be a normal female? XY XXY YY XX

5. Most nasty genetic disorders are recessive- you need two bad copies of the gene to come down with the disease. Some are dominant- if you have just one of the bad genes, you will get the disease. Which of the following disorders has dominant inheritance? Huntington's chorea Phenylketonuria Tay-Sach's disease Cystic fibrosis.

6. In Venetian Floozies, purple stripe color is autosomally dominant over pink. If you mate a male purple striped Floozy that does not carry the pink gene to a female pink Floozy, what percentage of the offspring would you expect to have purple stripes? 0 percent 50 percent 25 percent 100 percent

7. Who discovered the basics of genetics while pottering around in the garden? Albert Einstein Gregor Mendel James Watson Charles Darwin

8. Watson and Crick won a Nobel Prize for their discovery of... The structure of DNA The protein coding system of RNA The inheritance pattern of Tay-Sachs disease Mitosis

9. Some genetic disorders are maintained in a population because, if an individual has only one bad copy of the gene, some survival advantage is maintained. People with just one copy of a particular mutated gene are protected from malaria. If they have two bad copies of the same gene, they have the disease... Hemophilia Sickle cell anemia Amyotrophic lateral sclerosis Muscular dystrophy

10. When the cell is not busy dividing, the chromosomes 'unwind and relax'. What are they called when they are in this form? Chromatin Endoplasmic reticulum Plasmids Chloroplasts