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Genetics for MMS

Genteics Test Review for Montgomery Middle School - Montgomery, Texas

QuestionAnswer
Your DNA code is located on structures called chromosomes
What is the shape of a DNA molecule? twisted ladder
What is the scientific name for the DNA molecule? double helix
Your blueprint for how you become you is called DNA
Sections of a chromosome that represent a specific characteristic are called gene
What are the steps of the DNA model made of? (the FOUR nitrogen bases) A T C G
What is Meiosis? Cell division where one reproductvie cell divides into four, each with 23 chromosomes
FORTY-SIX of these are found in the NUCLEUS of a cell. Twenty-three come from one parent and twenty-three come from the other parent chromosome
What is the base pairign rule? A-T, G-C
What are the sides of the double helix made of? sugar and phosphates
Where are the stepes attached on the double helix? at the sugars
What is mitosis? Cell division where one normal cell divides into two, each with 46 chromosomes
Where are the chromosomes found? Nucleus
Is it possible for two people to have the exact same genetic blueprint or DNA? yes, identitcal twins have the exact same DNA
What do we call the male reproductive cell? sperm cell
What do we call the female reproductive cell? egg cell
How many chromosomes are found in a normal human cell's nucleus? 46
How many chromosomes are found ina human reproductive cell? 23
What is cloning? creating an organism with identical DNA
What is the purpose of Mitosis? growth, repair, and replace cells
Where does fertilzation occur? plants and animals
What do we call the fertilzied egg cell? zygote
On the DNA ladder, "T" stands for thymine
On the DNA ladder, "A" stands for adenine
On the DNA ladder, "S" stands for sugar
On the DNA ladder, "C" stands for cytosine
On the DNA ladder, "P" stands for phosphate
On the DNA ladder, "G" stands for guanine
A diagram of a gene looks like a twisted ladder
A diagram of a gene looks like a striped "X"
The "middle" stage of Mitosis is Metaphase
The "prepare" stage of Mitosis is Prophase
The final stage of Mitosis, where the cell has almost formed two cells is called Telophase
The "away" stage of Mitosis is Anaphase
Created by: kriskirby