Download Meiosis Station Write the following statements in the correct column

Meiosis Station
1. Write the following statements in the correct column on your paper. Either
“Mitosis” or “Meiosis”
Makes haploid cells (1n)
Makes four cells
Makes diploid cells (2n)
Makes genetically identical cells Makes genetically unique cells Makes two cells
Makes gametes
Goes through 2 cell divisions Goes through one cell division
2. Draw the phases of mitosis (Hint: it looks like the first four phases of
Meiosis).
3. Put the pictures in the correct order using the letters.
A
B
C
D
4. Write the following statements next to the correct phase on your paper
Two cells are created
Crossing over occurs here
Chromosomes line up in the middle
Chromosomes line up in the
middle
Independent assortment occurs here
when the chromatids move apart
Four cells are created
Chromosomes move
apart
DNA does NOT replicate
and centrioles move
toward opposite sides
Punnet Practice Problems.
Part A: Guinea pigs were a popular model for observing genetics in early genetic studies (as
were fruit flies). Try these problems involving Guinea pig genetics.
In guinea pigs, the allele for short hair is dominant. (Use R’s)
1. What genotype would a heterozygous short haired guinea pig have? _______
2. What genotype would a purebreeding short haired guinea pig have? _______
3. What genotype would a long haired guinea pig have? ________
4. Show the cross for a pure breeding short haired guinea pig and a long haired
guinea pig. What percentage of the offspring will have short hair?
Part B: Butterflies can either be yellow (Y), blue (B), or blue and yellow spotted (YB). Predict
the offspring coloring of a yellow male and blue and yellow spotted female
5. Phenotype: __________________
6. Genotype: _________________
7. % yellow ________________
8. % blue _______________
9. % blue and yellow spotted: ______________
Part C: Black rats (B) are incompletely dominant to white rats (W). A gray rat (BW) is made by
black and white rats mating. Predict how many offspring will be black, white, and gray
when a gray rat mates with a white rat.
10. Phenotype: __________________
11. Genotype: _________________
12. % black ________________
13. % white _______________
14. % gray: ______________
Chromosome Structure
Directions:
1. Read pages 151-153
2. Draw and label figure 8.1 on page 151.
3. Answer the questions below.
Cell
Questions
1. Which is bigger, a segment of DNA or a chromosome?
2. What is the relationship between a molecule of DNA and a chromosome?
3. Where do you see helixes (spirals) in this figure?
4. Name the protein that DNA wraps around.
5. How does the structure and location of a prokaryote chromosome differ from that of a
eukaryotic chromosome?
6. Is there a correlation between the number of chromosomes and the complexity of an
organism? Give an example.