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Transcript
Class Presentation Questions for CH 11-4 Meiosis
1. What two “things” did Mendel’s principles of genetics require?
2. ____________________ is a term used to refer to chromosomes that each have a
corresponding chromosome from the opposite-sex parent.
3. A cell that contains BOTH sets of chromosomes is said to be ______________
which means “__________________”. This number is represented by 2N.
4. ________________ cells contain two complete sets of chromosomes and two
complete sets of genes.
5. _______________ is a term used to refer to a cell that contains only a SINGLE
set of chromosomes & therefore only a single set of genes. It is represented by the
symbol N.
6. What is meiosis?
7. The Diploid (2N) number for the fruit fly=_________; The Haploid (N) number
for the fruit fly= _________________.
8. Meiosis usually involves two distinct divisions called ____________________
& ___________________-.
9. The number of chromosomes in a gamete is represented by the
symbol_________.
10. If an organisms diploid # is 46, what is its haploid #?
11. An organism’s gametes have ___________________ the number of chromosomes
found in the body cells.
12. _________________ are produced as a result of meiosis.
13. Gametes have ______________ allele for each gene.
14. Define crossing over.
15. Crossing-over occurs during the stage of meiosis called _________________.
16. What happens to the # of chromosomes per cell during meiosis?
17. List the major differences between mitosis and meiosis.
18. Meiosis produces ___________ sperm cells that are genetically DIFFERENT. In
females what is the end result of meiosis?
19. What might happen if the gametes of a species had the same # of chromosomes as
the species’ body cells?
20. Explain why the daughter cells produced by meiosis are genetically different from
each other, whereas the daughter cells produced by mitosis are not.