Biology 20
Pre-Lab #9 Meiosis & Genetics
Name:
PLEASE TYPE your answers below and submit them at the beginning of lab.
1. Name one reason why you undergo mitosis.
a.
b.
c.
d.
2. Identify the stages for each cell above:
a)
b)
c)
d)
3. Define haploid:
4. What’s the diploid number of chromosomes in your skin cells?
5. What’s the haploid number of chromosomes in your gametes?
6. Which division of meiosis is referred to as the reduction division phase?
7. Define heterozygous in terms of Mendelian genetics.
8. Define homozygous in terms of Mendelian genetics.
9. If you cross a homozygous recessive individual with light colored eyes with another individual that is homozygous
dominant for dark colored eyes, what percentage of their offspring will have light colored eyes? Dark colored
eyes are dominant to light colored eyes. PLEASE SHOW YOUR WORK FOR ANY CREDIT. YOU MAY HAND DRAW
YOUR PUNNETT SQUARE.