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【判断题】
三角带传动中，小轮包角越大，其产生摩擦力也越大，因此传动的承载能力也越大。A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【简答题】The process by which introns are removed from immature mRNA is called _____________.
【简答题】启动集群时需要分别执行命令start-dfs.sh、start-yarn.sh、mr-jobhistory-daemon.sh start historyserver,关闭集群则需要分别执行命令stop-yarn.sh、stop-dfs.sh、mr-jobhistory-daemon.sh stop historyserver,这样每次启动和关闭集群都很繁琐。为了减少这种操作,请编写一个脚本来控制...
【单选题】Introns are ________ in nature and the sequence is _______ than exons.
A.
coding, less random
B.
non-coding, less random
C.
non-coding, more random
D.
coding, more random
【单选题】In total, only about ______ of human DNA is “coding” or exon DNA, carrying sequence information for protein products. However, when the much larger introns are included in the count, as much as 30% of...
A.
0.5%
B.
1.0%
C.
1.5%
D.
2.5%
【单选题】Introns are removed from the RNA transcripts in the nucleus by _____________ in eukaryotic cells.
A.
RNA cutting
B.
RNA modification
C.
RNA splicing
D.
RNA folding
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