mRNA processing
A) is the degradation of old RNA.
b) occurs after transcription.
c) occurs at the ribosomes.
d) converts introns into primary RNA.
e) removes exons from mature RNA.
Answer: b) occurs after transcription.
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Horizontal gene transfer between host organisms and their symbionts
A) happens frequently because of coevolution. B) causes genome reduction in the symbiont and genome expansion in the host. C) causes genome reduction in both the host and the symbiont. D) has been observed, but is considered a rare event.
Describe the positive feedback loop that is in play during human labor
What will be an ideal response?
Asexual reproduction by budding is represented by:
a. one arm of a starfish breaking off and forming a new individual starfish b. a single-celled diatom undergoing mitosis and cytokinesis to form two new equally sized daughter cells. c. a single-celled yeast undergoing mitosis and unequal cytokenisis to grow a small new cell that will break off to become a daughter cell d. a bacteria undergoing binary fission to create two new daughter cells e. a multicellular hydra growing a small new multicellular hydra that will break off to form a new, independent hydra f. a lizard's unfertilized egg developing into a new adult
Taste and smell are similar in that both respond to some sort of pressure.
Answer the following statement true (T) or false (F)