HDU 1560 DNA sequence(DNA序列) Time Limit: 15000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Problem Description - 题目描述 The twenty-first century is a biology-technology developing century. We know that a gene is made of DNA. Th…
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…
在介绍summary.seqs的用法之前,我们首先需要搞清楚两个概念: 1)ambiguous bases 中文叫做模糊碱基,对于DNA序列来说,只有ATCG 4种碱基,在IUPAC定义的碱基标准中,出了上述4种碱基之外,还包括其他的碱基,可以代表不同类型的碱基 代码 英文含义 中文含义 G Guanine 鸟嘌啉 A Adenine 腺嘌啉 T (U) Thymine (Uracil) 胸腺嘧啶 (尿嘧啶) C Cytosine 胞嘧啶 R (A or G) PuRine 嘌啉 Y…
[SinGuLaRiTy-1039] Copyright (c) SinGuLaRiTy 2017. All Rights Reserved. 迭代加深搜索(ID) 迭代加深搜索,实质上就是限定下界的深度优先搜索.即首先允许深度优先搜索K层搜索树,若没有发现可行解,再将K+1后重复以上步骤搜索,直到搜索到可行解.在迭代加深搜索的算法中,连续的深度优先搜索被引入,每一个深度约束逐次加1,直到搜索到目标为止.迭代加深搜索算法就是仿广度优先搜索的深度优先搜索.既能满足深度优先搜索的线性存储要求,又能保…
定义 主要指基因组水平上由单个核苷酸的变异所引起的 DNA 序列多态性. 在基因组水平上由单个核苷酸的变异所引起的DNA序列多态性.即:在不同个体的同一条染色体或同一位点的核苷酸序列中,绝大多数核苷酸序列一致而只有一个碱基不同的现象. 首先来看看多态性(polymorphism)的英文解释 Polymorphism the quality or state of existing in or assuming different forms: such as: a variation in a…
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…