Shapes of DNA
Meiosis
Meiosis Vs Mitosis
Making Unique Cells
100
Which form of DNA is X-shaped?
Chromosomes
100
Which step is this?
Anaphase I
100
Mitosis or meiosis?
Makes exact copies of cells.
Mitosis
100
What is one process that makes cells unique?
Independent assortment or crossing over
200
Which form of DNA: two chromosomes the same size, with the same information
Homologous Pair
200
How many steps does meiosis have?
Eight
200
Mitosis or Meiosis?
Makes genetically unique cells
Meiosis
200
What happens in crossing over?
Chromosomes trade pieces
300
Which form of DNA?: two halves of a chromosome
Chromatids
300
What is pulled apart in meiosis I?
Homologous pairs
300
Mitosis or Meiosis?
The final cells have 23 chromosomes, in humans.
Meiosis
300
What happens in independent assortment?
Chromosome copies are randomly chosen for the final cells.
400
Which form of DNA?: loose, stringy DNA
Chromatin
400
What is pulled apart in meiosis II?
Sister chromatids (the Xs are split)
400
Mitosis or Meiosis?
Happens in your somatic (body) cells
Mitosis
400
This is an example of:
Crossing over
500
How do we count chromosomes?
By their centromeres (where chromatids attach).
1 chromatid is also a chromosome
500
Name the steps of meiosis, in order
Prophase I, Metaphase I, Anaphase I, Telophase I, Prophase II, Metaphase II, Anaphase II, Telophase II
500
Mitosis or Meiosis?
Makes four, haploid cells
Meiosis
500
This is an example of:
Independent Assortment