Prokarytotes Vs. Eukaryotes
The Cell Cycle and Mitosis
Meiosis
Chromosomes!
Spermatogenesis and Oovogenesis
100
Unicellular organism with a simple cell structure; bacteria and archea
What is a prokaryote?
100
A key transition point at which progression to the next stage in the cell cycle is regulated.
What is a checkpoint?
100
Stage of meiosis I in which chromosomes condense and pair, crossing over takes place, the nuclear membrane breaks down, and the spindle forms
What is Prophase 1?
100
Possessing two sets of chromosomes.
What is diploid?
100
Sperm production in animals.
What is spermatogenesis?
200
One of the primary divisions of life; consists of organisms whose cells have a complex structure involving specialized organelles.
What are Eukaryotes?
200
Stage of mitosis in which the chromosomes contract and become visible, the cytoskeleton breaks down, and the mitotic spindle begins to form.
What is prophase?
200
Exchange of genetic material between homologous but nonsister chromatids.
What is Crossing Over?
200
Possessing a single set of chromosomes.
What is Haploid?
200
Diploid cell in the testis; capable of undergoing meiosis to produce sperm.
What is spermatagonium?
300
Low molecular weight protein found in eukaryotes that complexes with DNA to form chromosomes.
What is Histone?
300
Stage of mitosis in which chromosomes align in the center of the cell.
What is metaphase?
300
Sorting of alleles into new combinations.
What is recombination?
300
the natural ends, or tips, of a linear chromosome
What are telomeres?
300
Egg production in animals.
What is oogenesis?
400
Material found in the Eukaryotic nucleus; consists of DNA and proteins.
What is Chromatin?
400
Stage of mitosis in which chromatids separate and move toward the spindle poles.
What is anaphase?
400
The four products of meiosis; all four chromatids of a homologous pair of chromosomes.
What is a tetrad?
400
Site where DNA synthesis is initiated.
What is the origin of replication?
400
Diploid cell in the ovary; capable of undergoing meiosis to produce an egg cell.
What is the oogonium?
500
Organelle found in eukaryotic cells that is enclosed by the nuclear envelope and contains the chromosomes.
What is a nucleus?
500
Stage of mitosis in which the chromosomes arrive at the spindle poles, the nuclear membrane re-forms, and the chromosomes relax and lengthen.
What is telophase?
500
Close pairing of homologous chromosomes.
What is synapsis?
500
Two copies of a chromosome that are held together at the centromere. Each chromatid consists of a single DNA molecule.
What are sister chromatids?
500
Oogonium that has entered prophase I.
What is the primary oocyte?