Meiotic Cell Division (NOT DONE)

EXAM #3

Meiotic cell Division ensures that each generation of humans inherits a total of

46 chromosomes

Where does meiotic cell division occur in the human body?

Gonads (Ovaries and Testes)

Which types of cell division produce the haploid gamates (Sex Cells) that you require for sexual reproduction?

Meiotic cell division

During meiotic cell division crossing over and the random assortment of homologous chromosomes increases—-

genetic variations among gamates

The spindle separates each pair of sister chromatids and delivers one sister chromatid to opposite ends of the cell is—-

meiosis ll

Which process generates recombinant chromosomes in prophase l of meiosis l?

crossing over

During meiosis cell divison, one diploid germ line cell in the gonads produces—

Four haploid gametes

What is an example of a homologous pair of chromosomes in the nucleus of your cells?

Chromosome #17 you inherited from mom and chromosome #17 you inherited from dad

After DNA synthesis, germ line cells in your gonads have 4 sets of chromosomes. How many times must these cell divide during meiosis to produce haploid gametes with one set of 23 chromosomes?

2

When a human haploid sperm fertilizes a human haploid egg, the resulting diploid zygote has a total of —

46 chromosomes

Meiotic cell division increases the genetic variation in sexually reproducing populations. How is this beneficial?

Adapt to new environment

Meiotic cell division enables you to produce—

genetically-variable haploid gametes

The nucleus in the eukaryotic cells of potato contains four sets of chromosomes. This is an example of—

Polyploidy (tetraploidy)