一、植物的多样性和我国的植物资 源 二、植物在自然界和国民经济中的 作用 三、植物学的分支学科 四、植物学与农业科学的关系 五、学习本课程的目的与方法 第一节 植物细胞 第二节 植物细胞的分裂 第三节 植物的组织

Occurs The borders between introns and exons are marked by specific nucleotide sequences within the pre-mRNAS

Transcription is very similar to DNA replication but there are some important differencesi 1 RNA is made of ribonucleotides 2. RNA polymerase catalyzes the reaction 3. The synthesized RNa does not remain base-paired to the template DNA strand 4. Less accurate(error rate: 10-4)

There are genetic processes that rearrange DNA sequences and thus lead to a more dynamic genome structure

All DNA is recombinant DNA. Genetic exchange works constantly to blend and rearrange chromosomes, most obviously during meiosis, when homologous chromosomes pair prior to the

Molecular Biology course CHAPTER 9: The mutability and repair of DNA

CATER 8 The replication of wa Teaching Arrangement Watch animation-Understand replication

Part l: Maintenance of the genome Dedicated to the structure of NA and the processes that propagate, maintain and alter it from one cell generation to the next

Molecular Biology of the Gene, 5/E---Watson et al. (2004) Part I: Chemistry and genetics Part l: Maintenance of the Genome Part I: Expression of the Genome Part IV: Regulation Part v: Methods

Cloning vectors: 克隆载体 to clone a gene in a vector Expression vectors: 表达载体 to express a gene from a vector Integration vectors: 整合载体 to integrate a gene in a genome through a vector Cloning vectors 1 Plasmid vecters 2 Bacteriophage vectors 3 Cosmids & BACs 4 Eukaryotic vectors Cloning vectors: allowing the exogenous DNA to be inserted, stored, and manipulated mainly at DNA level. expression vectors: allowing the exogenous DNA to be inserted, stored, and expressed