Across
- 5. A mutation in which segments of one or more chromosomes change positions
- 6. A gene-carrying structure found in the nucleus of plant and animal cells. Each chromosome consists of one very long DNA molecule and associated proteins.
- 8. When referring to a point mutation: A mutation in which one base is removed.
- 12. A characteristic or trait, such as fur, that the common ancestor of a group had and passed on to its descendants.
- 14. A change to one or more chromosomes
- 15. A set of Information that controls a single trait; a segment of DNA on a chromosome that codes for a specific trait.
- 16. The study of embryos and their development
- 17. An alternative form of a gene.
- 21. A mutation in which a portion of a gene in a chromosome is replicated, resulting in multiple copies
- 24. A mutation in which one base is replaced by an incorrect one
- 25. A trait that helps an organism survive and reproduce
- 26. A building block of DNA, consisting of a five-carbon sugar, a nitrogenous base, and a phosphate group.
- 27. The passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction.
- 28. The process through which organisms better adapted to their environment survive and produce more offspring, and organisms which are less adapted to the environment die off.
- 29. Deoxyribonucleic acid; the genetic material that carries information about an organism and is passed from parent to offspring. In DNA, A pairs with T and G pairs with C.
Down
- 1. An organism's genetic makeup or allele combinations.
- 2. When the sequence of the genetic code is displaced, caused by an insertion or a deletion of one base
- 3. A group of organisms that share a genetic heritage, are able to interbreed, and produce offspring that are also fertile.
- 4. An allele for a trait that is hidden whenever the dominant allele is present.
- 7. The study of body structure
- 9. A mutation that reverses the order of genes on a chromosome
- 10. How well an organism can survive and reproduce in its environment
- 11. A change to only one of the bases in the genetic sequence
- 13. Having two identical alleles for a trait.
- 18. the most recent species from which two new, different species evolved
- 19. An allele for a trait that always shows up in an organism when the allele is present.
- 20. An organism's physical appearance or visible traits.
- 22. Branching tree aiagram that shows the relationships among a group of organisms based on shared, derived characteristics.
- 23. A mutation in which a base is added to the genetic sequence