Sex – Linked Traits

Objectives for the day

• Conduct sex-linked punnett square.• Identify which sex chromosomes are mostly

responsible for sex-linked disorders and why.

Why are traffic lights always on the same orientation?

Are you color blind?

Here are the stats:

• About 8 -10 % of men in America are diagnosed to be color blind.

• About 1 out of 100 female are diagnosed to be color blind.

• The most common colors for blindness are red and green.

http://www.colblindor.com/wp-content/images/poll-colorblind-result.gif

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