Judy Lehmberg (FLC I) - Lee College

Instructor: So if you were the F 1 generation, who would the F 2 be?
Answer: My kids.
Instructor: So who would the P generation be?
Answer: My parents.
Instructor: What are alternative versions of genes?
Answer: Brown eyes, blue eyes…
Instructor: What genetic disorder is more common in males than females?
Answer: Color blindness
Instructor: What is independent assortment?
Answer: Where chromosomes can go either way during anaphase of meiosis 1 or meiosis 2
Instructor: What is phenotype?
Answer: What an individual looks like as a result of his or her genes.
Instructor: What is genotype?
Answer: What your genes look like.
Instructor: What is a zygote?
Answer: A fertilized egg.
Lecture continues.
Practice 5 - Properties of Water
In this Activity you will investigate some of the physical properties of water. If you need more information a
more thorough discussion of water's characteristics can be found in your textbook.
HYDROGEN BONDS When two hydrogen atoms react with an oxygen atom to form water, there is an
unequal sharing of electrons among the atoms. This creates a slightly negative charge on the side of the water
molecule that has more of the electron cloud. Water molecules act like a bunch of magnets holding on to each
other by the attractions between the + and - ends. The force created by those attractions is called a "hydrogen
bond", and it is the secret to all of water's special properties.
QUESTIONS
1. As water falls from the clouds, what force keeps the water in drops? (This force is sometimes called the
cohesion of a substance.)
The force is cohesion. It is due to the attraction of the positively charged hydrogen of one water molecule for
the negatively charged oxygen of another.
29