Genetics
Across
- 7. The complex 8-step process used to make reproductive gamete cells. Sperm in males and eggs in females both have only half the DNA of the body cells.
- 8. A small section of DNA that controls a specific trait.
- 11. The pair of genes an individual has that code for a specific trait (shown using 2 letters).
- 13. When the sperm cell and egg cell combine, their DNA combines to create an offspring with unique DNA.
- 14. A form of reproduction that involves a single parent having offspring that are genetically identical to the parent.
- 15. An extremely long molecule that contains the genetic code for all the traits of our cells, tissues, and organs in our body.
Down
- 1. A diagram that shows the chance an offspring will have a trait similar to its parents, based on their genes.
- 2. A DNA strand wrapped up tightly into an organized rod. Humans have 23 pairs of these inside the nucleus of each cell.
- 3. An allele that is overpowered or covered up by a dominant trait.
- 4. The trait that shows up in an individual based on what the genetic code says.
- 5. A version of a gene. If a certain gene codes for height, it could maybe have 2 versions: short and tall.
- 6. An allele that is able to overpower or cover up a recessive trait.
- 7. An accidental change to the genetic code of DNA. This could result in proteins not being made correctly in the body.
- 9. The complex 4-step process used by cells to split themselves in half. Each half will become its own cell with identical DNA to the original.
- 10. A form of reproduction that involves 2 parents contributing half their DNA to have offspring that are genetically unique to the parent.
- 12. Molecules made by the cell based on the DNA's genetic code. These molecules build the cell's specialized structures and functions.