Download Quiz02

Biology 160, Section 08
Winter 2009
Quiz 02 – 25 points
Name:______________________________
1. Which of the following is NOT a function of mitosis in humans?
A. repair of wounds
B. growth
C. production of gametes from diploid cells
D. replacement of lost or damaged cells
E. none of the above
2. Fill out the following diagram of the phases of mitosis:
Stages of Mitosis
Draw a diagram of a cell
during each phase. Please
label everything!!!!
Write down 2 distinct
characteristics of each
phase.
1. Chromosomes condense
Prophase
2. Nuclear envelope breaks up
1. ____________________
Metaphase
2. ____________________
1. ____________________
Anaphase
2. ____________________
1. ____________________
Telophase and cytokinesis
2. ____________________
3. List three things that happen during meiosis that do not happen during mitosis:
1. ________________________
2. ________________________
3. ________________________
4. What happens during S phase of the cell cycle?
5.Most genes come in alternative forms called _____________.
6. In Mendel’s pea plant experiments he found that green pod color (G) was dominant over
yellow pod color (g). If you cross a heterozygous green pod plant with a homozygous yellow
pod plant in the parental generation, what would the phenotypic and genotypic ratios of the F1
progeny (offspring) be? Fill out the following diagram to obtain your answer:
P:
_______________________
Genotype of heterozygous
green pod plant
x
Gamete(s) for heterozygous green pod plant:
_______________________
Genotype of homozygous
yellow pod plant
Gamete(s) for homozygous yellow pod plant:
Draw and fill out a Punnett square to obtain the genotypes of your F1 offspring:
What is the phenotypic ratio of the F1 offspring? ______________________________
What is the genotypic ratio of the F1 offspring? _______________________________
7. Tim and Jan both have freckles (a dominant trait), but their son Michael does not. Using F for
the dominant freckles trait and f for the recessive “no freckles” trait, draw and label a pedigree
for this family (squares represent males, and circles represent females).
Now using with a Punnett square calculate the probability that their next child will have freckles: