Biology- Cell division and inheritance 0.0 / 5 ? BiologyCell division and inheritanceGCSEAQA Created by: baggiez_boiCreated on: 28-04-14 21:58 What does the, large and complex, DNA carry and what does it determine? The genetic code tht determines the characteristics of living things 1 of 30 Why do we use fingerprinting? Because each persons DNA is unique apart from identical twins. 2 of 30 What is a gene and what does each code for? A short section of DNA, each codes for a specific region. 3 of 30 What does the cells nucleus contain that are made from long DNA molecules? Chromosomes. 4 of 30 What do chromosomes contain and what are tehy normally found in? The cells genetic information, normally found in pairs in the body cells, 5 of 30 What process devides the body cells? Mitosis. 6 of 30 When a body cell devides by mitosis is the genetic material copied? Yes. 7 of 30 When the body cell devides are the body cells gentically identical? Yes. 8 of 30 When does mitosis occur. In growth or to produce replacement cells. 9 of 30 What do cells in the reproductive system produce? Gametes (sex cells). 10 of 30 What is the male gamete and where is it produced? Sperm produced in the testes. 11 of 30 What is the female gamete and where is it produced? Eggs produced in the ovaries. 12 of 30 How many sets of genetic information do gametes contain? One. 13 of 30 How man sets of genetic information fo body cells conatin? Two. 14 of 30 What is the name of the cell division that produces gametes? Meiosis. 15 of 30 What is fertilistation. The joining or fusion of a male gamet and a female gamete. 16 of 30 What happens in fertilisation? The new cell that is formed divides over and over again by mitosis. This creates the many cells that eventually form a new individual. 17 of 30 Why do animal cell differentiate at an early stage? To become specialised for a particular function which cannot change. 18 of 30 When stem cells are made to differentitiate what do they form and give an example? New types od cells such as nerve cells. 19 of 30 Name the two types of stem cells and where they come from? Embryonic from the embryo and adult from the adult bone marrow. 20 of 30 How many pairs of chromosomes does a human body cell have in the nucleus? 23. 21 of 30 How many pairs control the inheritance of gender One. 22 of 30 Are the two cell chromosomes in male the same and what are they? No. XY. 23 of 30 Are the two cell chromosomes in female the same and waht are they? Yes. **. 24 of 30 What is the name given to the characteristics controlled by the same gene which have different forms? Alleles. 25 of 30 What does the gen for eye colour have an allele for? The blue eye and the brown eye. 26 of 30 Alleles are either dominant or what? Recessive. 27 of 30 Which allele are the characteristics controlled by if it is whenever it is present? The dominant. 28 of 30 When is the characteristic controlled by the recessive allele? When both chromosomes are in the pair. 29 of 30 What are the cels of offsprinng produced by asexual reproduction produced by? Mitosis from the parental cells. 30 of 30
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