Across
- 6. the female reproductive cell
- 8. within the nucleus of eukaryotic cells composed of chromatin and visible at cell division (condensed chromatin)
- 10. making productive by adding nutrients
- 11. the genetic make-up (the assemblage of alleles) of an individual
- 12. a heterozygous individual not expressing a recessive trait but capable of passing it on to its offspring
- 15. alternative forms of a gene
- 16. a region of DNA located on a chromosome that specifies a trait
- 18. the scientific study of genes and heredity
- 19. a change or alteration in form or qualities
Down
- 1. possessing a pair of identical alleles for a particular gene
- 2. the production of new organisms by the combination of genetic information of two individuals of different sexes
- 3. an allele that is only expressed when the organism is homozygous for that allele and not expressed when heterozygous (when paired with a dominant allele)
- 4. the physical or chemical expression of an organisms genes
- 5. the generation that supplies gametes to the filial generation.
- 7. an allele that is always expressed when present, regardless of whether the organism is homozygous or heterozygous for that gene
- 9. the generation that receives gametes from the parental generation
- 13. material that carries genetic information in a cell
- 14. the male reproductive cell
- 17. possessing a pair of unlike alleles for a particular gene