The greatest single cause of blindness in the world is

A) neonatal gonorrheal ophthalmia.
B) keratoconjunctivitis.
C) trachoma.
D) inclusion conjunctivitis.
E) pinkeye.


C

Biology & Microbiology

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Scientists isolate cells in various phases of the cell cycle. They find a group of cells that have times more DNA than G1 phase cells. The cells of this group are _____

A) between the G1 and S phases in the cell cycle B) in the G2 phase of the cell cycle C) in the M phase of the cell cycle D) in the S phase of the cell cycle

Biology & Microbiology

A portion (location) of DNA that encodes a specific protein is a


Examine this image of chromosomes and identify the structural components.

A. kinetochore.
B. centromere.
C. chromatid.
D. chromosome.
E. gene.

Biology & Microbiology

The major relay station of the brain is the

a. thalamus. b. hypothalamus. c. midbrain. d. pons. e. medulla oblongata

Biology & Microbiology

A molecule or anything else that transports new genes into a cell is called a

a. vector. b. plasmid. c. restriction enzyme. d. bacterium.

Biology & Microbiology