A trait in which heterozygotes have a phenotype that is intermediate between the dominant and recessive phenotypes is an indication of:
a) codominance
b) pleiotropy
c) a sex-linked trait
d) incomplete dominance
e) None of these are correct
d) incomplete dominance
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Water held behind a dam would best reflect ________.
A. potential energy B. kinetic energy C. chemical energy D. heat energy E. mechanical energy
When aldosterone is secreted into the blood, blood pressure will ____________ .
Fill in the blank(s) with the appropriate word.
Which of the following depicts structures that are analogous but not homologous?
(A) Bluebird wing and penguin wing (B) Bluebird wing and dragonfly wing (C) Penguin wing and seal flipper (D) Seal flipper and dragonfly wing
The hormones that are most directly involved with the process of birth are
a. estrogen and oxytocin. b. oxytocin and prostaglandins. c. oxytocin and progesterone. d. prolactin and estrogen. e. prostaglandin and progesterone.