Biology

2. Growing points in a plant where immature cells are capable of dividing.
6. All the organisms in one species who live in the same place at the same time and breed together.
8. Species concept where a group of similar organisms can interbreed and produce fertile offspring.
10. Stage of protein synthesis in whihc the amino acid are assembled at ribosomes.
12. Gene therapy where a gene is placed in adult differentiating cells.
13. Specific position on chromosome.
14. Enzyme catalysing construction of DNA strand from mRNA.
16. Role a species plays in an organism.
17. Formation of an RNA molecule using a length of DNA as a template.
20. Behaviour not learned, very inflexible.
21. Non-sister chromatids wrap round each other here.
23. Mass of undifferentiated plant cells.
24. Species concept where a group of organisms have similar morphology, physiology, embryology and behaviour.
27. Characteristic coded for by one gene.
28. Cell formed by fusion of two gametes.
29. 10 base long, needed in sequencing and PCR.

1. Type of natural selectionin which the allele and genotype frequencies stay the same.
3. Protein that forms the thick filament in muscle cells.
4. Any food substance where a particular nutrient is higher than usual levels.
5. Groups of homeobox genes.
7. When bacteria take up DNA from their surrounding.
9. All the genetic information of an organism.
11. Characteristic coded for by many genes.
15. Level at which organism feeds in a food chain.
18. Without contamination.
19. A monophyletic taxonomic group, single ancestor and all its descendants.
22. Main component of thin filaments.
24. Observable characteristics of organism.
25. Trial and error learning
26. Piece of tissue taken from plant to grow callus.
27. Structural change to genetic material.