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Genetics Test Review
Question | Answer |
---|---|
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 modle made of? (the FOUR nitrogen bases) | A T C G |
What is Meiosis? | Cell division where one reproductive 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 paring rule? | A-T, G-C |
What are the sides of the double helix made of? | sugar and phosphates |
Where are the steps 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, identical twins have the exact same DNA |
What do we call the male reporductive cell? | sperm cell |
What so 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 in a 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 fertilization occur? | plants and animals |
What do we call a fertilized egg cell? | zygote |
On the DNA ladder, what does "T" stand for? | thymine |
On the DNA ladder, what does "A" stand for? | adenine |
On the DNA ladder, what does "S" stand for? | sugar |
On the DNA ladder, what does "C" stand for? | cytosine |
On the DNA ladder, what does "P" stand for? | phosphate |
On the DNA ladder, what does "G" stand 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 |