The process of removing introns from the RNA to give a mature mRNA is called _________
a. transcription
b. RNA splicing
c. translation
d. translocation
e. none of the above
Ans: b
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The two major groups of helminths are the ________ and the ________.
A. cestodes; trematodes B. tapeworms; flukes C. roundworms; pinworms D. roundworms; flatworms
A water-vascular system is characteristic of the
phylum a. Arthropoda. b. Annelida. c. Chordata. d. Mollusca. e. Echinodermata
Chromosome condensation indicates a cell has entered
A) prophase. B) prometaphase. C) metaphase. D) anaphase. E) telophase.
Skeletal muscle appears striped because of the
A) way the sarcoplasmic reticulum wraps around the myofibril. B) arrangement of thick and thin filaments. C) accessory proteins in thin filaments. D) orientation of T tubules. E) arrangement of ions across the sarcoplasmic reticulum membrane.