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Genetics Test-Review

Science 6-3 McFadden By:Chris O'Brien

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
Created by: littleob