People with albinism carry two copies of the ____________________ allele (aa) and cannot make a pigment called
____________________ which is the principal pigment in skin, hair and eye color. Fill in the blank(s) with the appropriate word(s).
ANSWER: recessive; melanin
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Which of the following is not a mechanism of quorum sensing in Vibrio?
A. Phosphorelay B. Antisense RNAs C. Autoinduction D. Stringent response
Prostaglandins are ____
a. protein molecules that act either by paracrine or autocrine mechanisms. b. fatty acid derivatives that act either by paracrine or autocrine mechanisms. c. neurotransmitters that act by paracrine mechanisms. d. amine molecules that act by neuroendocrine mechanisms. e. steroid molecules that are lipid soluble.
The sexual phase of Plasmodium is called a:
A. sporozoite B. gametocyte C. merozoite D. plasmacyte E. anthracite
Which is the correct sequence in the evolution of
plants? a. algae >>> gymnosperms >>> angiosperms>>> bryophytes >>> ferns b. ferns >>> algae >>> bryophytes >>> gymnosperms>>> angiosperms c. algae >>> bryophytes >>> ferns >>> gymnosperms>>> angiosperms d. ferns >>> gymnosperms>>> algae >>> bryophytes >>> angiosperms e. algae >>> bryophytes >>> ferns >>> angiosperms >>> gymnosperms