IB DP Biology: HL复习笔记7.3.4 Bioinformatics
Bioinformatics The 21st Century has seen a tremendous increase in the amount of biological data This has been due to rapid advances in DNA sequencing and other technologies Developments in scientif...
IB DP Biology: HL复习笔记7.3.3 Translation in Prokaryotes
Translation in Prokaryotes Prokaryotic cells have a less complex ultrastructure than eukaryotic cells Eukaryote cells are divided up into membrane-bound compartments called organelles Transcription...
IB DP Biology: HL复习笔记7.3.2 Ribosomes
Structure of Ribosomes Ribosomes are found in cells Either freely in the cytoplasm (of all cells) Or bound to the endoplasmic reticulum (ER) to form rough ER (only in eukaryotic cells) Ribosomes ar...
IB DP Biology: HL复习笔记7.3.1 Translation
Initiation of Translation Initiation of translation involves assembly of the components that carry out the process. During translation, the specific sequence of messenger RNA (mRNA) is translated t...
2022年AP成绩已公布！CB官网公布美国TOP30大学最新AP换学分要求！
2022年AP考试成绩于7月5日美东时间8:00公布，不知道各位同学今年发挥得如何呢？众所周知，AP分数不仅可以用来作为申请大学的依据，还可以用来兑换未来的大学学分。随着今年AP分数的发布，也有不少同学们对于AP换...
IB DP Biology: HL复习笔记7.2.5 Skills: Analysing DNA Methylation Patterns
Skills: Analysing DNA Methylation Patterns Methylation of DNA Methyl groups (-CH3) can be directly added to DNA to change the activity of a gene DNA methylation commonly involves the direct additio...
IB DP Biology: HL复习笔记7.2.4 Post-transcriptional Modification
Modification of RNA In all kingdoms of life, gene expression can be regulated after an mRNA transcript has been produced Post-transcriptional modification of mRNA Helps prevent degradation mRNA is ...
IB DP Biology: HL复习笔记7.2.3 Transcription
Nucleosomes Regulate Transcription Nucleosomes are the structural unit of DNA packaging in eukaryotes that facilitate supercoiling Within a nucleosome, DNA is wrapped around proteins called histone...
IB DP Biology: HL复习笔记7.2.2 Environment & Gene Expression
Environment & Gene Expression Environment and Gene Expression An organism’s internal or external environment can influence gene expression patterns The levels of regulatory proteins or transcri...
