“introns”可以造什么句，introns造句

2、The distribution, structural features and splicing mechanism of at AC introns are discussed and compared with major class of introns.

4、By freeing introns from the need to splice themselves, the spliceosome would in effect have encouraged introns to proliferate, mutate and evolve.

6、Messenger RNA (mRNA) does not contain introns, these being removed during the transcription process.

8、The presence of introns, and thus exons, in effect made genes modular.

10、The ASQS genomic DNA has a complex organization containing14 exons and13 introns.

12、Similarly, biologists have assumed that the absence of introns from prokaryotes was a consequence of intense competitive pressures in the microbial environment: evolution had pruned away the introns as deadweight.

14、Theory that introns were present in early life forms and were retained by eukaryotes, but lost by prokaryotes.

16、For all sequences, information on related genes, exons, introns, gene products and taxonomy is available, as well as selected genome maps and RNA secondary structures.

18、Objective The purpose of the study was to investigate the relationship between the character of nucleic acids and the multiple breakpoints in the introns of DMD gene.

20、Theses results demonstrated that all exons of MyoG gene were highly conservative, but its introns (especially intron 1) were more polymorphic in the process of wild boar evolution.

3、Of course, as long as introns needed to splice themselves in and out of genomes, their sequences could not have deviated much from that of group II introns.

7、For example, unlike animal genes, plant genes are generally much smaller with fewer and smaller introns.

11、The results felicitously explain that the number of introns distributed in vertebrates, Diptera and nematodes are declining sequentially.

15、The introns are cut out by processing enzymes in the nucleus and the exons(coding sequences)ligated together.

19、Although having great variance in sequence, group I introns share a number of conserved base-paired regions, which take part in the formation of the catalytic structure.

5、We also found that genes that hae lost their introns many millions of years ago eole especially fast near where the introns once resided.

13、Noncoding DNA, containing introns, repetitive elements, and potentially active transposable elements, requires effective mechanisms for its long-term silencing.

1、Bacteria do not have introns.

17、Splice donor site-- the junction between the end of an exon and the start of the downstream introns, commencing with the dinucleotide GT.

9、Theory that introns were introduced into eukaryotes after the lineage separated from prokaryotes.