IB DP Biology: SL复习笔记4.1.1 Species & Population
Species A species can be defined as: A group of organisms that can interbreed to produce fertile offspring The ability to breed and produce fertile offspring is a useful method of distinguishing sp...
IB DP Biology: SL复习笔记3.4.5 Skills: Genetic Modification & Biotechnology
Cloning Plants Design of an experiment to assess one factor affecting the rooting of stem-cuttings Stems can be cut so that roots develop from the cut end of the stem This is a way of cloning plant...
IB DP Biology: SL复习笔记3.4.4 Cloning
Cloning Clones are groups of genetically identical organisms, derived from a single original parent cell A cloned cell is a cell that is genetically identical to the cell that it originated from Se...
IB DP Biology: SL复习笔记3.4.3 Genetic Modification
Genetic Modification Genetic modification is carried out by gene transfer between species Genetic modification is a term usually used to refer to the transfer of DNA sequences from one species to a...
IB DP Biology: SL复习笔记3.4.2 DNA Profiling
Use of DNA Profiling DNA profiling involves comparison of DNA DNA profiling (genetic fingerprinting) enables scientists to identify suspects for a crime and identify corpses because every person (a...
IB DP Biology: SL复习笔记3.4.1 Electrophoresis & PCR
Gel Electrophoresis Gel electrophoresis is used to separate proteins or fragments of DNA according to size Gel electrophoresis is a technique used widely in the analysis of DNA, RNA, and proteins D...
IB DP Biology: SL复习笔记3.3.5 Mutations & Disease
Causes of Mutations A mutation is a change in the sequence of base pairs in a DNA molecule They occur randomly and continuously to create new alleles of a gene Often only with a very small number o...
IB DP Biology: SL复习笔记3.3.4 Inheritance of Genetic Diseases
Causes of Genetic Disease A gene can affect a phenotype of an organism A gene codes for a single polypeptide The polypeptide affects the phenotype through a particular mechanism The phenotype of an...
沃顿商赛哪家培训机构好？如何报名？
一个好的商赛经历，能让招生官看到你的商科热情和商科潜力！参加什么样的商赛能增加被商学院录取的概率呢？那就不得不提最具含金量的“爬藤学霸杀手锏”——沃顿商赛！那么应该如何报名呢？什么时候报名？沃顿商赛哪...
