DNA
Define DNA
The "instructions" that determine how offspring are made OR
Genetic material that is stored inside of the nucleus of our cells
What is the GOAL of reproduction?
The pass on genetic information (DNA) onto offspring
What is the purpose of mitosis and meiosis?
Mitosis: Growth & repair
Meiosis: Sexual Reproduction / fertilization
What is the most basic unit of LIFE?
Cells
What is the structure of tightly coiled DNA called?
(HINT: this is what allows the DNA to be neatly packed into the nucleus)
Chromosome
What are the two types of reproduction?
Sexual and Asexual
Mitosis begins with one parent cell, and divides into how many daughter cells?
2
Define a nucleus (as it pertains to this unit)
Organelle that contains all of our DNA
Brain of the cell
What are the sets of DNA that codes for our traits?
Genes
How many parents (sets of DNA) are required for sexual reproduction, and how many are required for asexual reproduction?
Sexual reproduction requires 2 parents
Asexual reproduction only requires 1 parent
Meiosis begins with one parent cell, and divides into how many daughter cells?
4
The study of heredity.
How many chromosomes are located in our cells at any given time?
Name one advantage of asexual reproduction
Happens quickly
Takes less energy
Facilitates rapid population growth
Identical; Unique
A characteristic belonging to a population or organism.
How many chromosomes do we receive from EACH parent?
23
Name one advantage of sexual reproduction
Genetic variation
Better chance of survival
The daughter cells of Mitosis have (the same/different) number of chromosomes as the parent cell, while the daughter cells of Meiosis have (the same/different) number of chromosomes
Mitosis offspring have THE SAME number of chromosomes as the parent cell (46)
Meiosis offspring have HALF of the chromosomes as the parent cell (23)
What is a CLONE?
An organism that is genetically IDENTICAL to another