Biology

3. Sugar contained in DNA
6. When a set of genes become repeated
7. The directional growth movement by a plant organ in response to light from one direction
8. An organisms appearance resulting from its inherited information
9. Elastin, collagen, keratin, and actin are examples of this protein
11. The mechanism used by organisms to maintain a water balance
13. When a spindle fibre fails during meiosis and one homologous pair is not separated
14. This membrane is fully permeable and saturated with water
15. What happens when a plant cell is placed in a hypotonic solution
16. Cell organelle that contains digestive enzymes
17. A mass of undifferentiated plant cells produced during somatic fusion
18. The deliberate selection by humans of organisms with useful characteristics
21. A form of nuclear division which results in the production of four haploid gametes from one diploid gamete mother cell
23. The single set of haploid chromosomes typical of a species
24. Plants that have flexible stems that allow them to move with water movements

1. This enzyme seals the gene into the bacterial plasmid
2. This enzyme cuts the DNA into small sections and cuts open the plasmid
4. Provide specific immune response in the form of antibodies
5. The 'weeding out' of organisms least well suited to the environment
10. Produced from a cross between two genetically dissimilar parents from the same species
12. A random change in the structure or amount of an organisms genetic material
19. When ions or molecules move against a concentration gradient
20. The light independent stage of photosynthesis happens here
22. Plants adapted to living in very dry or exposed habitats (e.g desert)