Focus Activity 2
 

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Across
 4.  Genes on the X chromosome
 6.  Protein that controls the expression of other genes
 9.  Secrete testosterone.
10. Secrete anti Mullian harmones.
11. PAR1 and PAR2

Down
1.  Only one set of genes.
2.  A trait that is dominate in one sex, but recessive in another.
3.  Directs the development of the male genitals.
4.  Because females have two X chromosomes one must be made inoperable.
5.  Has a counterpart on the X chromosome.
7.  The nucleus of a female cell in interphase has one dark-staining X chromosome called?
8.  Genes on the Y chromosome.

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© Ann Humes, February 12, 2001
Jenks Public Schools
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