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Genetics Test-Review
Science 6-3 McFadden By:Chris O'Brien
Question | Answer |
---|---|
What are the structures that DNA is located on called? | Chromosomes |
You have 46 of these. 23 from your Mom, and 23 from your Dad. What are they? | Chromosomes |
What is the shape of a DNA molecule? | A twisted ladder. |
What is the scientific name for the DNA molecule? | A Double Helix. |
What is the Blueprint for how you become you? | Your DNA |
What are sections of chromosomes that represent a specific characteristic? | Base Pairs |
What are the steps of the DNA model made of? (The 4 Nitrogen bases) | G C T A |
What is the base pairing rule? | G goes with c, and T goes with A. They can never be different. |
What are the sides of the Double Helix made of? | Sugar and Phosophates |
Where are the steps attached on the Double Helix? | On the Sugars |
What is Mitosis? | A Cell division process in which DNA in the nucleus is duplicated and the nucleus divides into two Nuclei that contain the same genetic information. |
What is Meiosis? | Process in which sex cells are formed in the reproductive organs;involves two nuclei,producing 4 sex cells,each having the same number of chromosomes as the original cell. |
What is the difference between Mitosis and Meiosis? | Mitosis is cell division, and meiosis is the process making sex cells. |
Where are your chromosomes found? | They are in the nucleus. |
Is it possible for 2 people to have the exact same genetic blueprint or DNA? | Yes, Identical twins have the same DNA, but something that is different about them is their fingerprint. |
What do we call the male reproductive cell? | A Sperm |
What do we call the female reproductive cell? | An egg |
How many Chromosomes are found in a normal human cell? | 46 chromosomes |
How many Chromosomes are found in a reproductive cell of a himan? | 23 chromosomes |
What are three purposes of mitosis? | Replacing, Repairing, Growing. |
Why is reproduction an important process for all living things? | Because without reproduction, there would be no life, and everything would become extinct. |
What is fertilization? | The process in which sperm and egg join, resulting in a new organism. |
What do we call the fertilized egg cell? | A zygote |