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Meiosis
meiosis & Sexual Reproduction in Flowering Plants
Question | Answer |
---|---|
number of human chromosomes in a diploid cell | 46 |
number of human chromosomes in a haploid set | 23 |
double set (FULL) | diploid |
single set (HALF) | haploid |
the only cells in your body that are haploid | sex cells |
another term for sex cells | gametes |
number of daughter cells produced at the end of meiosis | 4 |
number of human chromosomes in each daughter cell | 23 |
daughter cells are haploid or diploid? | haploid |
What does PMAT stand for? | prophase, metaphase, anaphase, telophase |
What happens at the beginning of Meiosis I? | DNA IS copied so that there are now 92 chromosomes to be split |
What happens at the beginning of Meiosis II? | DNA is NOT copied so there are 46 chromosomes to be split |
TETRADS refer to the chromosomes in which stage of Meiosis? | Meiosis I |
CHROMATIDS refer to the chromosomes in which stage of Meiosis? | Meiosis II |
What are the cells produced after telophase II? | daughter cells |
In which stage of Meiosis do the chromatids split by being pulled apart by spindle fibers? | Anaphase II |
In which stage of Meiosis do the tetrads split by being pulled apart by spindle fibers? | Anaphase I |
In which stage of Meiosis do the tetrads line up in the center of the cell? | Metaphase I |
In which stage of Meiosis do the chromatids line up in the center of the cell? | Metaphase II |
In which stage of Meiosis does the cell's nuclear wall disintegrate and the DNA replicate? | Prophase I |
In which stage of Meiosis do the two cells' nuclear walls disintegrate and the DNA does NOT replicate? | Prophase II |
In which stage of Meiosis do the nuclear membranes reform at the end of cell division and 4 daughter cells are produced? | Telophase II |
In which stage of Meiosis do the nuclear membranes reform and 2 diploid cells are produced? | Telophase I |
What is the purpose of Meiosis? | to produce haploid gametes |
male gametes | sperm |
female gametes | eggs |
Meiosis I produce genetically ________________ cells | identical |
Meiosis II produce genetically _______________ cells | unique |
How many rounds of cell division occur in Meiosis | 2 |