Entries by John

X-linked Agammaglobulinemia

CASE 1 X-linked Agammaglobulinemia An absence of B lymphocytes. One of the most important functions of the adaptive immune system is the production of antibodies. it is estimated that a human being can make more than one million different specific antibodies. This remarkable feat is accom­ plished through a complex genetic program carried out by […]

Natural Selection Within a Species

In a lab titled “Natural Selection Within a Species,” we measured hte lengths of peanut shells and counted how many peanuts were in each shell and graphed them. 3. what might happen if each shell contained fewer than normal seeds and why? 4.What might happen if each shell contained more than the normal number of […]

Anatomy of a pine.

1. Anatomy of a pine. a. Place your open seed cone into a cup of tap water. b. Record: Time into water _________ Describe your observations and any changes in the cone appearance c. Let the cone sit in the water for at least 30 minutes. d. Record: Time out of water _______ Describe your observations […]