BIO101 2012
Meiosis Homework
1. Fill in the number
a. Chromosomes in a human somatic cell
___________
b. Chromosomes in the sperm of a fruit fly that has a diploid number of 8
___________
c. X chromosomes in a human female somatic cell
___________
d. The number of Y chromosomes in a male chimpanzee somatic cell
___________
e. The number of chromosomes in a haploid human cell
___________
f.
___________
A dog sperm has 39 chromosomes. How many chromosomes in a dog zygote?
g. Pairs of autosomes in a human somatic cell
___________
2. Interphase or Prophase I?
a. ________________ Nuclear membrane is present
b. ________________ Chromosomes condense
c. ________________ DNA is synthesized to make new copy
d. ________________ Cell has not entered meiosis
e. ________________ Crossing over occurs between non-sister chromatids
3. Metaphase I, Anaphase I, or Telophase I?
a. ________________ Chromosomes line up as homologs along equatorial plate
b. ________________ Homologous chromosomes separate. Chromatids move, still attached as sister
chromatids, towards opposite poles
c. ________________ Cytokinesis occurs to form 2 haploid cells
d. ________________ Nuclear membranes reforms
4. Prophase II, Metaphase II, Anaphase II or Telophase II?
a. 4 haploid unique daughter cells are produced
______________________
b. Sister chromatids split apart to become chromosomes
______________________
c. Sister chromatids line up at metaphase plate
______________________
d. Chromosomes condense
______________________
BIO101 2012
5. Identify the specific phase of meiosis. For each phase, you should be able to identify the characteristic(s) of
the cell you used to place the cell in that phase.
You will use each of these terms ONCE:
PROPHASE I
PROPHASE II
METAPHASE I
METAPHASE II
ANAPHASE I
ANAPHASE II
TELOPHASE I
TELOPHASE II