IB DP Biology: HL復習筆記7.1.4 DNA Sequencing
DNA Sequencing Application: Use of nucleotides containing dideoxyribonucleic acid to stop DNA replication in preparation of samples for base sequencing DNA sequencing allows for the nucleotide base...
IB DP Biology: HL復習筆記7.1.3 Non-coding DNA
Non-coding Regions of DNA DNA molecules are very long but?only certain regions code?for the production of polypeptides These are called?coding sequences In humans only?1.5% of the genome?contains c...
IB DP Biology: HL復習筆記7.1.2 Mechanism of DNA Replication
Leading Strand & Lagging Strand Double-stranded DNA consists of?two antiparallel strands?(oriented in opposite directions) During DNA replication, the two strands are ‘unzipped’ and DNA polymer...
IB DP Biology: HL復習筆記7.1.1 DNA Structure
Nucleosomes Unlike most prokaryotic DNA which is referred to as ‘naked’, eukaryotic nuclear DNA is associated with proteins called?histones?(to form?chromatin) Histones package the DNA into structu...
IB DP Biology: HL復習筆記6.6.6 Skills: Reproduction Diagrams
Male & Female Diagrams You should be able to?annotate diagrams?of the female and male?reproductive systems?to show the names of the different?structures You should also be able to recall the?fu...
IB DP Biology: HL復習筆記6.6.5 Reproduction: Sex Determination in Females
Oestrogen & Progesterone During early development an embryo develops?embryonic?gonads?that will either become?ovaries?in females or?testes?in males The factor that determines whether the embryo...
CB官方推薦不同年級AP報考科目！
按往年慣例，通常9月份開始，不同考區就開始陸續報名。科目選擇會讓不少學生糾結，好在CollegeBoard給出了“官方標準”，列舉了不同年級熱門報考科目。目前AP開設了22個門類，37個學科的AP課程。AP課程共有38門學科...
IB DP Biology: HL復習筆記6.6.4 Reproduction: Sex Determination in Males
SRY Gene In?sexual reproduction?in?humans, a sperm from a male fuses with, or fertilises, an egg from a female to form a?zygote, which then develops into an?embryo To begin with the embryo develops...
IB DP Biology: HL復習筆記6.6.3 Reproduction: Background
William Harvey & Sexual Reproduction in Deer William Harvey (1578 - 1657) was an English?physician?who contributed greatly to our understanding of?anatomy?and?physiology He is mainly remembered...
