Year 10 Biology

3. The number of autosomal chromosomes in humans.
5. Similar structures in related individuals.
6. A group of similar individuals that can mate to produce fertile offspring.
7. Two identical alleles on a chromosome.
9. The process by which people choose to breed particular organisms with desirable features.
12. Keeping interbreeding groups apart by some barrier or mechanism.
13. A change in the base pair sequence of DNA.
15. Two copies of this allele are required for it to show.
17. A version of a gene.
18. A shared ancestor of two or more evolutionary lineages.
19. The number of chromosome pairs in humans.
20. differences in characteristics due to different genes.
22. The rapid divergence of an evolutionary lineage from a recent common ancestor.
24. The process in which an environmental factor acts on a population.
25. Only one copy of this allele is required for it to be observed.
26. Cell division used for growth and repair.
27. Pairs with cytosine.

1. Two different alleles on a chromosome.
2. Change in the characteristics of a species over many generations.
4. The process by which one species splits into two or more separate species.
8. An environmental factor that acts on a population during natural selection.
10. A special case of natural selection in which the environmental factor is the selection of a mate.
11. Cell division used for reproduction.
14. Only requires one parent for reproduction.
16. A change that does not change the protein being produced.
17. Pairs with thymine.
18. These are made up of DNA.
21. Structures that appear similar or have the same function even though the individuals are unrelated.
23. Deoxyribonucleic acid.