Genetics

4. the term introduced to replace 'global warming'
6. toads, frogs and newts belong to this class
10. different versions of a gene are called ...... eg Blue/brown eyes
12. changing the characteristic of an organism by transplanting a gene from one organsim into the DNA of another.
16. section of DNA that is responsible for a characteristic like eye colour or blood group.
19. the differences between individuals within a species.
20. the chemicals that make up DNA (A, T, C and G) are examples of these
23. continuous data is displayed in this type of graph
25. the name of the male gamete
26. the variety of living organisms in an area.
27. class of organisms that have mammary glands therefore feeding their offspring with milk

1. Scientist who won the Nobel prize alongside Crick
2. Blood group is an example of this type of variation
3. Darwins theory behind evolution
5. occurs between organisms over mates, food, habitats.
7. organelle within the cell where the chromosomes are found
8. type of breeding where organisms are deliberately bred so their offspring have the desirable characteristics.
9. group of organisms that interbreed to produce fertile offspring.
11. the allele that is always expressed whether one copy is inherited or not
13. double stranded molecule found in the nucleus
14. organisms with a backbone belong to this group
15. the group that comes after phylum but before order
17. living organisms are divided into 5 (technically 7) of these, including ... animal, plant, monera, fungal and protist
18. the allele that is only expressed if 2 copies are inherited
21. body cells have 46 of these, gametes have only 23
22. when a species is no longer in existance
23. DNA structure is a double ....
24. this class of organsims are covered in scales/bony plates, cold-blooded and have at least one lung