Genetics

1. having two identical alleles of a particular gene or genes
3. covers the organism's morphology or physical form and structure
5. the offspring of two plants or animals of different species or varieties
11. A branch of biology
12. can occur because neither of the two alleles is fully dominant over the other, or because the dominant allele does not fully dominate the recessive allele
14. A long DNA molecule with part or all of the genetic material of an organism
17. A basic unit of heredity
20. one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome
21. is a non-heritable change in a function or structure of a living organism

2. A person who planted pea plants and stuied there genetics.
4. derived genetically from one's parents or ancestors
6. is the weak, unexpressed trait of a dichotomous pair of alleles
7. molecule that contains the genetic code of organisms
8. a square diagram that is used to predict the genotypes of a particular cross or breeding experiment
9. A trait that one thing got a genetic from their parents or ancestors.
10. is opposed to a recessive trait which is expressed only when two copies of the gene are present
13. A membrane-bound organelle that contains the cell's chromosomes
15. an alteration in the nucleotide sequence of the genome of an organism, virus, or extrachromosomal DNA
16. the genetic constitution of an individual organism
18. not mixed or adulterated with any other substance or material
19. having two different alleles of a particular gene or genes