DNA Mutations/Natural Selection
Across
- 2. A type of mutation in which the nucleotide changes results in the replacement one one protein building block with another made from the gene.
- 5. A type of mutation that occurs when there is an addition or loss of nucleotides that shifts the grouping and changes the code for all downstream amino acids.
- 7. More offspring are produced each year than local resources can support leading to a struggle for resources.
- 9. An English naturalist, geologist and biologist, best known for his contributions to the science of evolution.
- 11. Some traits are consistently passed on from parent to offspring. Such traits are heritable, whereas other traits are strongly influenced by environmental conditions and show weak heritability.
- 13. A type of mutation that occurs when a stretch of one or more nucleotides in a gene is copied and repeated next to the original DNA sequence.
- 14. A theory proposed by Charles Darwin which states that it is a process whereby organisms better adapted to their enviornment tend to survive and produce more offspring.
- 15. A type of mutation that replaces one DNA building block with another.
Down
- 1. A type of mutation in which the nucleotides change the altered DNA sequence results in a stop signal that prematurely signals the cell to stop building a protein.
- 3. Individuals possessing traits well suited for the struggle for local resources will contribute more offspring to the next generation.
- 4. A type of mutation that changes more than one nucleotide in a gene by replacing the original sequence with the same sequence in reverse order.
- 6. A type of mutation that changes the DNA sequence by adding one or more nucleotides to the gene.
- 8. A type of mutation that changes the DNA sequence by removing at least one nucleotide in a gene.
- 10. Organisms (within populations) exhibit individual variation in appearance and behavior.
- 12. The molecule that contains the genetic code of organisms.