Across
- 5. - A dominant trait or gene.
- 6. - Thread-like structure composed of DNA and proteins, carrying genetic information in the form of genes.
- 10. - One that is not expressed in an individual’s phenotype when a dominant allele for the same trait is present.
Down
- 1. - A permanent alteration in the DNA sequence of an organism or virus.
- 2. - Fertilized egg cell, formed by the union of two gametes.
- 3. - A type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes by half.
- 4. - Self-replicating material that is present in nearly all living organisms.
- 7. - Offspring of a cross between two different varieties, subspecies, or the species of the same genus.
- 8. - Femal reproductive cell produced by animals and land plants.
- 9. - The change in the inherited characteristics of biological populations over subcessive generations.