Problem In DNA strings, symbols 'A' and 'T' are complements of each other, as are 'C' and 'G'. The reverse complement of a DNA string ss is the string scsc formed by reversing the symbols of ss, then taking the complement of each symbol (e.g., the re…

Problem In DNA strings, symbols 'A' and 'T' are complements of each other, as are 'C' and 'G'. The reverse complement of a DNA string ss is the string scsc formed by reversing the symbols of ss, then taking the complement of each symbol (e.g., the re…

CHAPTER 38 Reading ‘the Book of Life’ The Human Genome Project 第38章 阅读生命之书 人体基因组计划 Humans have about 22,000 genes (the exact number is history in the making). How do we know this? Because scientists in laboratories all over the world collaborated on…

描述 How can millions of different and complex structures be built using only a few simple building blocks? Just ask your DNA. DNA (short for deoxyribonucleic acid) spells out the genetic codes of millions of species, using just four molecules: adenine…

问题 说明该问题在生物学中的实际意义 Biological applications often need to compare the DNA of two (or more) different organisms. A strand of DNA consists of a string of molecules called bases, where the possible bases are adenine, guanine, cytosine, and thymine(腺嘌呤,鸟嘌…

Problem An RNA string is a string formed from the alphabet containing 'A', 'C', 'G', and 'U'. Given a DNA string tt corresponding to a coding strand, its transcribed RNA string uu is formed by replacing all occurrences of 'T' in tt with 'U' in uu. Gi…

<tex2html_verbatim_mark> Figure 1. DNA (Deoxyribonucleic Acid) is the molecule which contains the genetic instructions. It consists of four different nucleotides, namely Adenine, Thymine, Guanine, and Cytosine as shown in Figure 1. If we represent a…

题目(中英对照): DNA (Deoxyribonucleic Acid) is the molecule which contains the genetic instructions. It consists of four different nucleotides, namely Adenine, Thymine, Guanine, and Cytosine as shown in Figure 1. If we represent a nucleotide by its initial…

E. DNA Evolution 题目连接: http://codeforces.com/contest/828/problem/E Description Everyone knows that DNA strands consist of nucleotides. There are four types of nucleotides: "A", "T", "G", "C". A DNA strand is a seque…

常见的ORF预测工具 Open Reading Frame Finder- NCBI ORF Finder - SMS OrfPredictor  - YSU 基本概念 开放阅读框(英语:Open reading frame:缩写:ORF:其他译名:开放阅读框架.开放读架等)是指在给定的阅读框架中,不包含终止密码子的一串序列.这段序列是生物个体的基因组中,可能作为蛋白质编码序列的部分.基因中的ORF包含并位于开始编码与终止编码之间.由于一段DNA或RNA序列有多种不同读取方式,因此可能同时存在许…