| A | B |
|---|
| asexual reproduction | Ð reproduction involving only one parent |
| extinct | Ð the state of organisms of one kind when they no longer exist; describes a species of which every member has died |
| reproduction | Ð the process of living things producing new living things of the same kind |
| budding | Ð swelling in certain plants and animals that develops into a new individual of the same kind |
| clone | Ð an organism genetically identical to its parent |
| fission | Ð the method of reproduction in which the parent body divides to make two or more organisms of the same kind |
| vegetative reproduction | Ð asexual reproduction in plants |
| chromosome | Ð the strandlike material controlling all the cellÕs activities; usually found in the nucleus of a cell |
| egg | Ð the female reproductive cell |
| sperm | Ð the male reproductive cell |
| trait | Ð a characteristic passes from parent to offspring |
| fertilization | Ð the joining of an egg cell with a sperm cell |
| gene | Ð the section of a chromosome that passes on traits |
| embryo | Ð a developing organism |
| gestation | Ð the length of time from fertilization to birth |
| genetics | Ð the scientific study of the passing of traits from parent to young |
| hybrid | Ð an organism with two different genes for a particular trait |
| mutation | Ð a change within the chromosome of an organism resulting in new features or traits in its offspring |
| Punnett square | Ð a chart showing the possible combinations of genes that pass from parents to offspring |
| pure strain | Ð an organism with only one gene type for a particular trait |
| dominant trait | Ð a trait that is more powerful than any other trait of the same kind |
| recessive trait | Ð a trait less powerful than another trait of the same kind |
