Frederick Griffith conducted experiments where nonlethal bacteria acquired the ability to cause lethal pneumonia due to the presence of an unknown chemical. This chemical was later found to be
a. RNA.
b. a protein.
c. DNA.
d. nonhereditary material.
e. phosphorus.
C
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At present there are four phyla in the domain Bacteria
Indicate whether the statement is true or false.
Oxygen-hemoglobin dissociation curves at three different pH levels The phenomenon illustrated in Figure 46-4 is known as:
a. carbon dioxide unloading.
b. the Bohr effect.
c. hemoglobin transportation.
d. chloride shift.
e. residual capacity.
BamHI is a Type II restriction enzyme that recognizes the sequence 5' G*GATCC 3', and cuts between the two Gs, leaving a 5' overhang. If you were to digest DNA with BamHI, what would be the sequence of the overhanging sticky ends of the two strands?
A. 5' G 3' and 5' C 3' B. 5' GATCC 3' and 5' GATCC 3' C. 5' GATC 3' and 5' CTAG 3' D. 5' G 3' and 5' G 3' E. 5' GATCC 3' and 5' GGATC 3' F. 5' GATC 3' and 5' GATC 3'
Answer the following questions true (T) or false (F)
1. Semen is the mixture of sperm and secretions from male reproductive glands. 2. As sperm are made, they travel through the vas deferens and are stored in the seminal vesicles until ejaculation. 3. Fallopian tube is another name for the uterine tube.