RNA的种类有三种,mRNA(messenger RNA)存在于细胞核和细胞质中,tRNA(transfer RNA)和rRNA(ribosomal RNA)存在于细胞质中。RNA可以通过核孔,DNA则不行。 练习题 链接为Google Forms形式的14道练习题,做完提交后会显示分数和正确答案。 习题副本如有需要请在末尾选择“Send me a copy of my responses.”,系统会发送...
mRNA:This molecule carries direct instructions from the cell's DNA to manufacture a specific protein. If DNA can be thought of as the blueprint of the entire organism, a strand of mRNA contains just enough information to make one decisive component of that organism. tRNA:This nucleic acid for...
leading to its binding during the initiation of translation. The 5 S and 23 S RNAs interact with one another in the large subunit, and both appear to be involved in aminoacyl-tRNA and peptidyl-tRNA binding during polypeptide chain elongation. Because the 16 S RNA as ...