biology unit 2 definitions Definitions from all of unit 2 in biology 5.0 / 5 based on 1 rating ? BiologyASAQA Created by: jessicaCreated on: 14-05-13 20:57 2743191068 Across 1. Having two names (8) 3. outer protective coat of secreted by cells of certain organisms. Plant cells always have one made of cellulose (4, 4) 6. situation when a population recovers from a small number of individuals. The new population is likely to show low variation sine many alleles have been lost from the gene pool (10) 8. degree of attraction, ie Haemoglobin has a high affinity for oxygen (8) Down 2. One of the two polysaccharides which make up starch. A branched polymer of starch (11) 3. One half of a double chromosome (9) 4. an antibacterial drug such as penicillin (10) 7. An alternative form of a gene (6) 9. Single celled prokaryotic organism (8) 10. phase of mitosis at which the chromatids split and are pulled to the opposite poles by spindle fibres (8)
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