The Age of Dinosaurs can also be called the Age of
a. Cycads.
b. Ginkgos.
c. Ferns.
d. Conifers.
e. the Seed.
Answer: a
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Answer the following statements true (T) or false (F)
1. Technically speaking, all antibodies are immunoglobulins, but not all immunoglobulins are antibodies. 2. IgG is the largest of the five classes of immunoglobulins. 3. The primary function of NK and K cells is to kill foreign cells, virus-infected cells, and tumor cells. 4. Common allergic reactions, such as those experienced in hayfever, are also known as anaphylactic reactions. 5. IgM antibodies and basophils play major roles in anaphylactic reactions.
PCR has revolutionized the criminal justice system through DNA fingerprinting
For a given fragment of DNA, showing that a suspect's fingerprint differs from that found at a crime scene immediately excludes him or her from suspicion, yet finding a match does not mean that guilt can be automatically concluded. Why?
Briefly state what is meant by repetitive DNA
What will be an ideal response?
Which of the following are among the major components of prokaryotic ribosomes?
A) lipids and carbohydrates B) 16S rRNA, 5S rRNA, and 23S rRNA C) 16S rRNA, 5.8S rRNA, and 28S rRNA D) 18S rRNA, 5.8S rRNA, and proteins E) 12S rRNA, 5.8S rRNA, and proteins