These are examples of:
a. homeobox genes. c. evo–devo.
b. ontogeny. d. homeotic transformations.
D
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Which one of the following annelid structures or events is not correctly paired with its role in locomotion?
A. circular muscles contract—segment becomes thin and long B. longitudinal muscles contract—segment becomes thick and short C. fluid in coelom—provides a hydrostatic skeleton D. septum—allows each segment to move independently E. chaetae—provides gas exchange surface for body muscles
Fetoscopy raises the risk of miscarriage by ________ percent
a. 0.3 b. 1-2 c. 50 d. 2-10
Many tropical ferns live on other plants without withdrawing nutrients from them. These ferns are said to be ____
a. epiphytes
b. bryophytes c. parasites d. pathogens e. saprophytes
Which enzyme replaces RNA primers with DNA after elongation?
A) DNA polymerase I B) DNA polymerase III C) RNA polymerase D) RNA primase E) DNA ligase