Phần ARN và Sự phiên mã.doc - Y07B 30 câu trắc...

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Y07B 30 câu tr c nghi m Sinh h c Di truy n Ph n ARN và S phiên mã ( Đã s a) ------- Câu 1: C u trúc có th rARN: A. D ng chu i đ n liên t c ơ B. D ng xo n b c 2 C. D ng xo n c u D. C A và B Câu 2: Ch n câu sai: Đ c đi m mARN Eukaryote: A. Có c u trúc ph c t p hôn ôû prokaryote B. Mã hóa nhi u chu i polipeptit C. Th i gian t n t i lâu D. Có các đo n exon và intron Câu 3: Lo i ARN nào có trình t nuclêôtit b sung v i m t m ch ADN c a gen c u trúc: A. rARN B. tARN C. mARN D. T t c đ u đúng Câu 4: rARN nào sau đây là thành ph n c u t o Rb c a vi khu n? A. ARN 5S B. ARN 16S C. ARN 18S D. ARN 28S Câu 5: Đi n khuy t: 1 ATP đ c … s d ng đ tách… trong s phiên mã ế ượ Eukaryote: A. TFII E/ 2 m ch đ n ơ B. TFII H/ 2 m ch đôi C. TFII E/ 2 m ch đôi D. TFII H/ 2 m ch đ n ơ Câu 6: Ch n câu đúng: A. mARN c a prokaryote ch th c hi n gi i mã sau khi phiên mã xong. B. Virus gây b nh AIDS có ARN di truy n C. ARN polymerase III t ng h p mARN c a Eukaryote D. tARN có đ i s ng dài nh t vì có c u trúc b c 2 Câu 7: Ch n câu đúng: Phiên mã Prokaryote: A. 1 lo i ARN –polymerase t ng h p t t c lo i ARN B. Khi th c hi n gi i mã, mARN b lo i b intron, n i exon C. mARN ch a thông tin 1 gen D. G n chóp vào đ u 5’. g n đuôi polyA vào đ u 3’ Câu 8: Lo i nào sau đây là enzyme ADN polimerase ph thu c ARN ? Ch n câu sai A. Tellomerase B. ARN polymerase C. Reverse transcriptase D. Enzyme phiên m ng
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