Meiosis
What is the purpose of meiosis?
To produce gametes.
How many chromosomes do humans have?
46
TRUE
In what phase is gametes formed?
TELOPHASE II
What is the result of meiosis?
Four gamete cells are produced
How do chromosomes and genes relate to meiosis?
Meiosis creates gametes that have chromosomes and genes in them.
How many gamete cells are produced when a cell divides?
4 gamete cells
In what phase does the chromosomes condense and the nuclear envelope breaks down?
PROPHASE II
True or False? Trisomy means 1 copy of an organism.
FALSE it means 3 copies of an organism.
What happens when chromosomes crossover?
Different parts of the chromosome are switched to the other chromosome.
What causes errors in producing gametes?
An extra or missing chromosome
What phase does the chromosomes line up?
METAPHASE II
What are the 2 main stages of meiosis
Meiosis I and Meiosis II
What is Klinefelter syndrome?
This is when males have an extra X chromosome. This causes males to have more feminine-like features.
What is the difference between Eukaryote and prokaryote reproduction?
Eukaryotes - They go through mitosis for body cells and asexual reproduction.
They go through Meiosis for gametes in sexual reproduction.
Prokaryotes - They go through binary fission which creates genetically identical organisms.
Explain the similarities between the phase I phases of meiosis and the mitosis phases.
They have the same process but in meiosis, the process is in germ cells.
When does crossing over occur?
Prophase I of meiosis
What happens in independent assortment?
When homologous pairs line up independently and it determines the combination of chromosomes to each gamete.
What is the result of random fertilization?
An increase in genetic diversity.
In what phase do the chromosomes pull apart into chromatids?
ANAPHASE II