In the process of mRNA splicing, the lariat structure is
a. the splicing complex.
b. the region where two exons are pasted together.
c. the enzyme that cuts the pre-mRNA.
d. the released intron.
e. the region where two introns are pasted together.
D
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The problem in synthesizing the 3' end of chromosomes is solved by the use of the telomerase enzyme
Indicate whether the statement is true or false
Early biologists classified living things into two kingdoms. Many biologists today recognize
__________ kingdom(s). a. one b. two c. three d. six e. twelve
Refer to Figure 46-1. The structures receiving air in figure 1 are known as:
a. anterior air sacs. b. parabronchi. c. spiracles. d. alveoli. e. tracheae.
During prophase, ____ is(are) compacted into visible chromosomes
a. chromatin b. centrioles c. centromeres d. kinetochores e. tetrads