1					2
								3
	4		5
												6
7					8
							9
									10
	11
12

Across 3. (of an animal) bred from parents of the same breed or variety. 7. A kind of dominance occurring in heterozygotes in which the dominant allele is only partially expressed, and usually resulting in an offspring with an intermediate phenotype. 9. Of, or pertaining to an individual (or a condition in a cell or an organism) containing two different alleles for a particular trait. 10. the phenomenon whereby, in an individual containing two allelic forms of a gene, one is expressed to the exclusion of the other. 11. one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome. 12. Of, or pertaining to an individual (or a condition in a cell or an organism) containing two copies of the same allele for a particular trait located at similar positions (loci) on paired chromosomes

Down 1. the offspring of two plants or animals of different species or varieties, such as a mule (a hybrid of a donkey and a horse). 2. A set of theories that attempts to explain inheritance and biological diversity according to the tenets of Gregor Mendel regarding the transmission of genetic characters from parent organisms to their offspring based on his statistical analysis and scientific breeding experiments on pea plants. His significant contributions served as the cornerstone of genetics. 4. the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment. 5. the genetic constitution of an individual organism. 6. A condition in which the alleles of a gene pair in a heterozygote are fully expressed thereby resulting in offspring with a phenotype that is neither dominant nor recessive. 8. the extent to which something is probable; the likelihood of something happening or being the case.