Genetics

10. material that carries genetic information in a cell
11. the female reproductive cell
13. 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)
14. making productive by adding nutrients
16. the physical or chemical expression of an organisms genes
17. the scientific study of genes and heredity
18. a heterozygous individual not expressing a recessive trait but capable of passing it on to its offspring
19. the generation that supplies gametes to the filial generation.
20. within the nucleus of eukaryotic cells composed of chromatin and visible at cell division (condensed chromatin)

1. possessing a pair of identical alleles for a particular gene
2. alternative forms of a gene
3. the production of new organisms by the combination of genetic information of two individuals of different sexes
4. a region of DNA located on a chromosome that specifies a trait
5. the male reproductive cell
6. a change or alteration in form or qualities
7. possessing a pair of unlike alleles for a particular gene
8. two nitrogen-containing bases (or nucleotides) that pair together to form the structure of DNA.
9. an allele that is always expressed when present, regardless of whether the organism is homozygous or heterozygous for that gene
12. the generation that receives gametes from the parental generation
15. the genetic make-up (the assemblage of alleles) of an individual