lunes, 22 de noviembre de 2010

Summary #8 (Using what we´ve learned)

What are some inherited traits that show a parent and child resemble each other? Some traits, such as red curly hair, may appear only twice in several generations. Other taits, such as dimples, may appear in every generation. Why do some traits skip generations and appear in others?

What are some common inherited traits?

Do you have any dominant trait? Freckles, long eyelashes, and free earlobes are some dominant traits. Their oppoite forms- no freckles, short eyelashes, and attached earlobes are recessive.Also diseases such as hemophilia, dislexia, and cystic fibrosis are inherited.

What determines the sex of a child?

Human chromosomes carry genes that control a variety of traits. Human have 23 pairs of chromosomes. One of those pairs determine the sex of a person.They are sex chromosomes and there are two kinds, the X chromosome and the Y chromosome.


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What method do you thing is better the traditional method ot the new technology? Why?