CIE IGCSE Biology: 復(fù)習(xí)筆記：17.1.7 Meiosis: Extended Meiosis: Extended Meiosis?is a type of nuclear division that?gives rise to cells that are genetically different It is used to produce th...
CIE IGCSE Biology: 復(fù)習(xí)筆記：17.1.6 Mitosis: Extended New Cells are Made by Mitosis: Extended Mitosis - Basics Most body cells have two copies of each chromosome We describe these cells as?d...
CIE IGCSE Biology: 復(fù)習(xí)筆記：17.1.5 Which Proteins are Synthesised? Control of Gene Expression: Extended Protein synthesis ?? Expression?of a gene means whether that gene is transcribed and ...
CIE IGCSE Biology: 復(fù)習(xí)筆記：17.1.4 Protein Synthesis Transcription & Translation: Extended Protein synthesis ?? Proteins are made by?ribosomes?with the sequence of amino acids controlle...
CIE IGCSE Biology: 復(fù)習(xí)筆記：17.1.3 Genes & Proteins DNA Base Sequence To Amino Acid Sequence: Extended The DNA Base Sequence Determines the Amino Acid Sequence in Protein The DNA code (...
CIE IGCSE Biology: 復(fù)習(xí)筆記：17.1.2 The Inheritance of Sex XX & XY Chromosomes Sex is determined by an?entire chromosome pair?(as opposed to most other characteristics that are ju...
CIE IGCSE Biology: 復(fù)習(xí)筆記：17.1.1 Chromosomes, Genes & Proteins The Structure of Genes Inheritance of Chromosomes, Genes and DNA Inheritance?is the?transmission of genetic information ...
CIE IGCSE Biology: 復(fù)習(xí)筆記：16.1.6 Sexually Transmitted Infections STIs & HIV/AIDS Unprotected sexual intercourse can lead to the transfer of pathogens via exchange of body fluids Infec...
CIE IGCSE Biology: 復(fù)習(xí)筆記：16.1.5 Sexual Hormones in Humans Secondary Sexual Characteristics Primary sexual characteristics are present during development in the uterus and are the differe...
