Across
- 2. is a gene whose effects are masked in the presence of a dominant gene
- 8. having the same relative position, value, or structure
- 9. one of two or more alternative forms of a gene that arise by mutation
- 11. having two different alleles of a particular gene or genes
- 12. is the process by which a molecule of DNA is duplicated
- 14. containing two complete sets of chromosomes, one from each parent.
- 15. is a molecule similar to DNA
- 17. is a change in a DNA sequence
- 18. a process where a single cell divides twice to produce four cells containing half the original amount of genetic information
- 19. large, complex molecules that play many critical roles in the body
Down
- 1. is any cell of the body except sperm and egg cells
- 3. structure found inside the nucleus of a cell
- 4. the young creation of living organisms
- 5. a diploid cell resulting from the fusion of two haploid gametes; a fertilized ovum
- 6. having a single set of unpaired chromosomes
- 7. is the basic physical and functional unit of heredity
- 10. expresses itself more strongly all by itself than any other version of the gene which the person is carrying
- 13. process of fertilizing an egg, female animal, or plant, involving the fusion of male and female gametes to form a zygote
- 16. the hereditary material in humans and almost all other organisms