Inheritance 4.5 / 5 based on 4 ratings ? BiologyDNA and inheritanceVariation and reproductionGCSEEdexcel Created by: Bella101Created on: 20-04-17 12:22 What two things are your features affected by? Environmental factors and features inherited from your parents 1 of 31 Where are chromosomes found? Nucleus 2 of 31 How many genes does each chromosome contain? Thousands 3 of 31 What are chromosomes made out of? Long molecules of deoxyribonucleic acid 4 of 31 What is Deoxyribonucleic Acid simplified? DNA 5 of 31 What is a gene? A gene is a section of DNA molecule that controls the development of one or more traits. 6 of 31 Genes are instructions for making... Protein 7 of 31 Genes are found in... a section of a DNA molecule found in Chromosomes 8 of 31 Structural Proteins- To build the body, e.g collagen, the protein found in tendons 9 of 31 Functional Proteins- To take part in chemical reactions of the body e.g. enzymes such as amylases 10 of 31 How do genes control what the cell does and how an organism develops? Genes control which protein a cell makes. 11 of 31 How may chromosomes in the egg cell/ova? 23 12 of 31 How many chromosomes in the sperm cell? 23 13 of 31 Why are sex cells made with copies of half the parents chromosomes, one from each pair? This makes sure that the fertilized egg cell as the right number of chromosomes. 14 of 31 Name the male gamete in animals- Sperm Cell 15 of 31 Name the female gamete in animals- Egg Cell/Ova 16 of 31 Sex cells have copies of -------- the parents chromosomes. half 17 of 31 What is an inherited disorder? A disorder passed down from parents to offspring. 18 of 31 Definition of a clone- A Genetically Identical organism. 19 of 31 Are Identical twins clones? Yes 20 of 31 You can also make clones from tiny pieces of plant grown in special jelly. What is the name of this jelly? Agar 21 of 31 What two sex chromosomes produce a female? ** 22 of 31 What are the chances of being male? 50% 23 of 31 What two sex chromosomes produce a male? XY 24 of 31 A male embryo's testes develop when it's approximately six weeks old. What gene is this caused by? SRY gene 25 of 31 What are hormones? Chemicals that control many processes in the cells. 26 of 31 What is your genotype? The alleles you inherit. 27 of 31 What are alleles? Different versions of the same gene. 28 of 31 What is your phenotype? The traits that can be observed/ what you look like. 29 of 31 If both of the inherited alleles are the same you are---------for that characteristic. Homozygous 30 of 31 If both of the inherited alleles are different you are---------for that characteristic. Heterozygous 31 of 31
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