Heredity and Environment

2. - another word for sperm & egg
5. - trait influenced by many genes
7. - Study of how environmental factors affect genes and genetic expression
9. - All living things are composed of this
11. - male gamete
13. -influences our environment, including the entire developmental context
16. - Involves a full set of genes that are the instructions to make an individual member of a certain species
17. - Two gametes combine and produce a new individual with 22 chromosomes for each
18. - Involved in many genetic and chromosomal problems, cannot be predicted in advance, and are not likely to reappear in future embryos
19. - made up of discrete segments of genes, is a DNA molecule
21. - a group of symptoms which consistently occur together
22. - Deoxyribonucleic acid

1. - All of the microbes living with every part of the body
3. - Originate from one zygote that splits apart very early in development
4. - rr characteristic
6. - influences the genes we inherit
8. - Observable characteristics of an organism, including appearance, personality, intelligence, and all of the traits
10. - Variation that makes a gene different in someway from other genes for the same characteristics
12. - Trait affected by many factors, genetic and environmental, that enhance, halt, shape, or alter the expression of genes, resulting in a phenotype that may differ markedly from the genotype
14. - RR characteristic
15. - basic units of heredity, direct development of traits
20. - female gamete