Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Science Gr 6 Unit 4
Molecular Genetics
| Question | Answer |
|---|---|
| albino | any plant or animal that has pale, defective coloring |
| anther | the upper portion of a stamen which contains pollen grains |
| chromosome | rod-shaped parts of a reproductive cell that carry the genes (the hereditary material) |
| cross-pollination | the transfer of pollen from the anther of one flower to the stigma of another |
| DNA or DioxyriboNucleic Acid | a very large, complex protein molecule that forms a double-helix shape and is contained in the chromatin of cells. It forms the substance of genes |
| dominant gene | a gene which produces its effect even though an opposite gene is present |
| egg cell | a female reproductive cell in a plant or animal |
| embryo | the undeveloped stage of a plant or animal |
| evolution | a process of change in a certain direction. It is also a name for several scientific theories about how life began and developed on earth |
| fertilization | the union of a male reproductive cell(sperm) and a female reproductive cell(egg) to form a cell that results in a new individual |
| filament | the stalk of a stamen in a flower |
| genes | the unit of DNA which carries inherited traits |
| genetics | the scientific study of heredity, the passing on of the characteristics of living organisms from one generation to the next |
| germination | a starting to grow or develop; a sprouting |
| heredity | the passing on of the characteristics of living organisms from one generation to the next; it includes all of the traits inherited by an organism |
| hybrid | the offspring resulting from a cross between two organisms differing in one or more genes |
| incomplete dominance | a condition where neither gene is dominant so that an intermediate or blended hybrid is produces |
| inherit | to receive something from an ancestor or parent; in the case of genetics, it is traits or characteristics |
| mitosis | a process of cell reproduction whereby a single cell splits apart to form two new cells |
| multiple genes | several genes which affect a trait |
| mutation | a change in a gene; a mistake or misprint in the DNA molecule; in some cases, a loss or addition of an entire chromosome or part of it |
| nucleus | the command center that controls the life and activity of the cell; it is located within the cytoplasm of the cell |
| ovary | the female reproductive organ that produces egg cells |
| ovule | part of a plant that develops into a seed |
| pistil | the entire female part of a flower |
| pollen | a powdery grain in the stamen that contains a sperm cell |
| purebred | an organism having the same genes for a particular trait |
| receptacle | the stalk which holds a flower |
| recessive gene | a gene carried by the cells that does not show its trait as long as a dominant gene is present |
Created by:
sal1117
Popular Science sets