Biology keywords Edexel 3.0 / 5 based on 2 ratings ? BiologyDNA and inheritanceOther keywords from cb1-cb5GCSEEdexcel Created by: roshan231Created on: 28-12-18 17:54 What is DNA? The metrical found inside the nucleus of cells 1 of 14 What are the bases of DNA? how many are there? 4 bases, A-T, C-G 2 of 14 What is a gene? Sections of DNA that code for a protein 3 of 14 What is a chromosome Long threads of DNA Which contain many genes 4 of 14 What is a genome? One copy of an entire organisms DNA 5 of 14 What two factors affect variation? Genetic, adopted from the parents, and enviromental. 6 of 14 What is the process of mitosis? I-interphase: P-prophase(membrane around nucleus disappears) M: metaphase A; anaphase T:telophase(There are two new membranes formed) C: cytokenisis 7 of 14 what is the end products of meiosis? 4 non identical haploid cells formed from a single diploid cell 8 of 14 What is the correct calculation for the rate of an enzyme reaction? Amount of substrate used / time taken 9 of 14 What are enzymes? (definition) Enzymes are biological catalyst which speed up reactions 10 of 14 monoclonal antibodies They are designed to bind to specific antigens 11 of 14 What is a lymphocyte? They create antibodies which bind pathogens together 12 of 14 What is a phagocyte? White blood cells that engulf pathogens then breaks them down using enzymes 13 of 14 What is the purpose of an antitoxin? Where do they come from? They come from lymphocytes and they neutralize toxins that come from pathogens 14 of 14
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