You and your genes 0.0 / 5 ? BiologyDNA and inheritanceVariety of life and classificationMicrobes and diseaseGCSEOCR Created by: hafsahshahCreated on: 03-04-15 16:00 What carries the instructions that control how your body functions? Genes. 1 of 20 What controls our characteristics? Genes and the environment. 2 of 20 Genes carry the instructions to make what? Proteins. 3 of 20 How many pairs of chromosomes do we have? 23 pairs, and sex cells have 23 chromosomes(one from each pair) 4 of 20 A female is ** A male XY 5 of 20 What leads to variation? The combination of genes from his or her parents. 6 of 20 Which diseases are caused by faulty versions of a gene? Cystic fibrosis, Huntingdon's disease 7 of 20 What have identical genes? Clones 8 of 20 Example of natural clones. Identical twins, runner and blubs. 9 of 20 Where are unspecialised cells found? In the human embryo and adults. 10 of 20 What type of cells can embryonic stem cells turn into? All cell types 11 of 20 What type of cells can adult stem cells turn into? Only some cell types 12 of 20 What is the structure of DNA? It is coiled and packed into chromosomes. 13 of 20 What are Functional proteins? They enable the body to function e.g enzymes hormones 14 of 20 What are Structural proteins? They give the body structure, rigitdy and strength e.g. collagen, keratin 15 of 20 What are different versions of a gene called? Alleles 16 of 20 Can two alleles, in a pair, be the same or different? Yes 17 of 20 What has 23 chromosomes? Sex cells; eggs and sperm one from each pair 18 of 20 At fertilization, what does an egg and sperm produce together? A zygote. 19 of 20 What genes does a human baby have? A combination of its mother and father. 20 of 20
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