人教版高中生物必修2第3章第3节 DNA的复制导学案

人科的起源 人类演化的四大DNA成果 Y染色体 人种的演化 东亚族群演化

The most common gene change involves a single base mismatch--a misspelling--placing the wrong base in the DNA. At other times, a single base may be dropped or added. And sometimes large pieces of DNA are mistakenly repeated or deleted

Review of markov models DNA Evolution CpG Island HMM The viterbi algorithm Real World HMMs Markov models for dna evolution Ch. 4 of Mount

人教版高中生物必修2第3章第3节 DNA的复制习题

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

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

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

一、遗传密码 遗传密码(genetic code):是生物蛋白质合成的密码, 是遗传信息的单位,由A、U、C、G组成。 遗传密码又是如何翻译呢? 首先是以DNA的一条链为模板合成与它互补的 mRNA,根据碱基互补配对的规律,在这条mRNA链 上,A变为U,T变为A,C变为G,G变为C 因此,这条mRNA上的遗传密码与非模板DNA链 是一样的,所不同的只是U代替了T。然后再由mRNA 上的遗传密码翻译成多肽链中的氨基酸序列