Viruses viruses either enter or inject their DNA RNA

... History of Worms History of Worms  The first worm to attract wide attention, the Morris The first worm to attract wide attention, the Morris worm, was written by Robert Tappan Morris, who ... day. MacMag and the Scores virus cause the first major Macintosh outbreaks. MacMag and the Scores virus cause the first major Macintosh outbreaks.  … … Worms Worms  Worm Worm - is a self-repli...

Ngày tải lên: 15/03/2014, 13:08

... Either you or he is wrong *Either you or he is wrong. Hình thức ngữ pháp : Cấu trúc " ;either or " - (hoặc hoặc ). 1. Chúng ta ... để biết thêm chi tiết về từ đó) Either you or he is wrong. 2. Các bạn hãy di chuột vào từng cụm từ một để biết chức năng của cụm trong câu: Either you or he is wrong. 3. Tại sao ... (conjunction) Either...

Ngày tải lên: 26/02/2014, 00:20

... to the tRNA Gln assume alternative conformations for the two consecu- tive reactions. The catalytic centers of the two enzymes compete for the acceptor form of tRNA Gln , and there- fore cannot ... of novel ones (for a brief review, see the Nobel Foundation Scientific Background published 50S proteins 50S rRNA tRNA, E-site tRNA, P-site tRNA, A-site mRNA 30S proteins 30S rRNA Fig. 3. Structure...

Ngày tải lên: 14/02/2014, 19:20

... (A,U,G,X). (2) Nucleotit của DNA và ARN đều có đường pento, axit photphoric và bazo nito. (3) DNA có đường là C 5 H 10 O 5 còn ARN có đường là C 5 H 10 O 4 . Sai vì : DNA có đường là C 5 H 10 O 4 ... nucleotit. A. DNA ( axit deoxyribonucleotit). -Xét nucleotit (nu.) ở phân tử DNA : + Đường pento. (C 5 H 10 O 4 ) + Axit photphoric ( H 3 PO 4 ) + Bazo nito . (A,T,G,X). -Xé...

Ngày tải lên: 22/02/2014, 23:58

... How DNA Works How DNA Works 1- 1- DNA stores genetic information in DNA stores genetic information in segments called segments called genes genes 2- The DNA code is in 2- The DNA code ... - Adenine - Adenine - - Uracyl (only in RNA) Uracyl (only in RNA) - Cytosine - Cytosine - Guanine - Guanine DNA DNA vs vs RNA RNA  DNA DNA 1- 1- D D eoxyribose sugar...

Ngày tải lên: 13/03/2014, 16:34

... proteins  GENES code for proteins  GENES are long strands of DNA on chromosomes What is DNA?  DNA is the genetic code,  Instructions for heredity,  Components of genes,  Director of protein synthesis  AND- DNA ... protein synthesis  AND- DNA is also  A type of nucleic acid  A type of organic compound  A polymer {a compound made of repeating subunits}  WHAT DOES DNA STA...

Ngày tải lên: 13/03/2014, 16:36

... GCA Tyrosine Proline Serine Alanine DNA and Protein Synthesis But… How does the information get from the DNA to the cytoplasm? mRNA DNA and Protein Synthesis - Transcription Transcription: 1) DNA unzips 2) mRNA (messenger ... the DNA and fix errors, so most are corrected Protein Synthesis- you try it! DNA transcription and translation- you try it!

Ngày tải lên: 13/03/2014, 16:38

... certain sequences of DNA • recombinant DNA can be joined to existing DNA using DNA ligase Cloning DNA using bacteria • foreign DNA can be introduced into bacterial cells (transformation) that then ... kinds of RNA • Ribosomal RNA, rRNA, is RNA that becomes part of the ribosome, the big molecular machine responsible for synthesizing proteins • Transfer RNA, tRNA, is use...

Ngày tải lên: 13/03/2014, 19:38

... [3-5]. DNA methylation leading to silencing is a very important survival mechanism used on re‐ petitive sequences in the human genome, which come from DNA and RNA viruses or from mRNA and tRNA molecules ... Factors and DNA Methylation http://dx.doi.org/10.5772/55021 5 3. Methylation in carcinogenesis DNA methylation can either affects key genes which act as a driving force in...

Ngày tải lên: 24/03/2014, 02:21

... virus; RHA, RNA helicase A; RISC, RNA- induced silencing complex; RNAi, RNA interference; s -DNA, short sense ssDNA; siDNA, short interfering DNA; siRNA, short interfering RNA; sRNA, small RNA; TMV, ... 330 as -DNA (ssDNA) 22 nucleotides TMV RNA 483–504 0 5 · 10 3 s -DNA (ssDNA) 20 nucleotides TMV RNA 390–409 0 5 · 10 3 siRNA 21 bp TMV RNA 420–440 89 4.5 · 10 3 dsRNA 284 bp TM...

Ngày tải lên: 16/03/2014, 02:20