| A | B |
|---|
| Heredity | the passing of of certain characteristics from parents to their children. |
| Inherited traits | Characteristics received from parents; effect the way you look and act. |
| Chromosomes | Long strands of matter located in cell nuclei; contain codes for all your inherited triats. |
| Genes | Tiny bits of information on chromosomes; influences heredity |
| Dominant | Decribes the stronger gene of the pair; these gene codes keep codes on the recessive gene from being carried out. |
| Recessive | Describes the weaker gene of the pair; it's codes are hidden by the codes on the dominant gene. |
| What do chromosomes contain? | They contain genes |
| Two kind of cells that contain 23 chromosomes each? | Sperm and Ovum cells |
| X chromosome and a Y chromosome will result in a ----? | Boy |
| Two X chromosomes will result in a -----? | Girl |
| A person's sex is determined by a single pair of _____. | Chromosomes |
| Your body has a system that directs your growth and development. It's called....? | Endocrine system |
| These glands help control the way your body works and creates hormones.. | Endocrine |
| Chemical messengers. | Hormones |
| Male reproductive cells. | Sperm |
| Female reproductive cells. | Ovum |
| This is formed by the combination of two reproductive cells. | Fertilized cell |
| Rapid growth is called a ------. | Growth spurt |
| A gland that produces hormone growth. | Pituitary gland |
| This gland controls how fast your cells turn nutients into energy. | Thyroid gland |
| These glands control how the body USES nutrients. | Adrenal glands |
| Reproductive organs. | Gonads |
| A time in life when males and females begin developing reproductive cells. | Puberty |
