genetics
Across
- 2. change over time
- 4. Process by which a single parent reproduces by itself
- 5. Nutrients the body uses to build and maintain its cells and tissues
- 8. An organism that has two different alleles for a trait
- 10. a random error in gene replication that leads to a change
- 12. Passing of traits from parents to offspring
- 13. genetic makeup of an organism
- 14. Cell division that produces reproductive cells in sexually reproducing organisms
- 16. A form of asexual reproduction of yeast in which a new cell grows out of the body of a parent.
- 17. Describes a trait that covers over, or dominates, another form of that trait.
- 20. A diagram that shows the occurrence of a genetic trait in several generations of a family.
Down
- 1. Any difference between individuals of the same species.
- 3. threadlike structures made of DNA molecules that contain the genes
- 6. DNA segments that serve as the key functional units in hereditary transmission.
- 7. An organism that has two identical alleles for a trait
- 9. cell division in which the nucleus divides into nuclei containing the same number of chromosomes
- 11. Product of reproduction, a new organism produced by one or more parents
- 15. A form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size
- 18. A characteristic that an organism can pass on to its offspring through its genes.
- 19. different forms of a gene