AS Biology Unit 2 (AQA) 4.0 / 5 based on 16 ratings ? BiologyASAQA Created by: RachelCreated on: 14-11-12 22:02 Final stage of Mitosis Cytokinesis 1 of 24 Specific type of plant, has adapting features e.g. sunken stomata, long thin leaves, waxy cuticle etc. Xerophyte 2 of 24 How oxygen is pumped into the blood. 'Oxygen.....' (12 letters) Dissociation 3 of 24 How water leaves a plant through the leaves. Transpiration 4 of 24 Stage of Mitosis in which the DNA is replicated. Interphase 5 of 24 Name for a non-coding DNA triplet. Intron 6 of 24 One form of a particular gene. Allele 7 of 24 A pair of chromosomes that code for the same gene. Homologous 8 of 24 Process by which zygotes (sex cells) are produced. Meiosis 9 of 24 Variation or competition between different species. Interspecific 10 of 24 A DNA molecule is made up of two strands of... Nucleotides 11 of 24 Guanine and Cytosine are joined together by ... hydrogen bonds. Three 12 of 24 Structure of DNA is a 'Double...' Helix 13 of 24 Found in the middle of a chromosome in the early stages of mitosis and meiosis. Centromere 14 of 24 The total number of homologous pairs present in a cell is the '..... number'. Diploid 15 of 24 Oxygen carrier found in the blood. Can carry 4 oxygen molecules at once. Haemoglobin 16 of 24 A double helix forms a ..... structure. Tertiary 17 of 24 The ability for haemoglobin to associate with oxygen is called it's 'Oxygen ...' Affinity 18 of 24 A blood vessel which contains valves. Vein 19 of 24 One of these is NOT a factor which affects transpiration: Volume of water 20 of 24 The final stage of classification is: Species 21 of 24 Courtship behaviour is: A way in which same species identify a mate with which they can produce fertile offspring. 22 of 24 One of these does NOT cause genetic variation: Complicated Birth 23 of 24 DNA hybridisation is: When a DNA strand splits down the middle, cuts up into individual nucleotides, and then one strand forms a hybrid, which joins to the other strand. 24 of 24
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