Meiosis
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Meiosis
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1.
Each chromosome comes near its replicated chromosome pair. Nucleus dissolves at this stage. Crossing Over (exchange of genetic material) occurs at this phase.

2. body cells, they are also diploid aka contain both sets of chromosomes

3.
Chromosomes duplicate before dividing in meiosis.

4.
Chromosomes that have the same sequence of genes, that have the same structure, and that pair during meiosis.

5.
Homologous chromosomes are pulled to opposite ends of the cell. Note that chromatids do not separate - each duplicated chromosome still has two chromatids.

6.
The duplicated chromosomes move to the centre of the cell. Each centromere attaches to two spindle fibres instead of one.

7.
The centromere divides. The chromatids seperate and move to opposite ends of the cell. Each chromatid is now an individual chromosome.

8.
The result of meiosis is 4 gametes, aka sex cells, that each contain half of the genetic information in the parent organism.

9.
A cell that contains only one set of chromosomes instead of the normal pair. Gametes, which are sex cells like sperm and eggs, are haploid cells.

10.
A process in cell division during which the number of chromosomes decreases to half the original number. It occurs by two divisions of the nucleus and results in the production of 4 sex cells (gametes).

11.
Process in which homologous chromosomes exchange portions of their chromatids during meiosis. This increases genetic variation.

12.
Chromosomes (uncondensed in this phase) replicate in preparation for meiosis. At this point they are long and thing and called 'chromatin'.

13. number of chromosomes present in humans

14.
The cytoplasm divides and two new cells form. Each new cell has one duplicated chromosome from each similar pair.

15. undifferentiated or unspecialized cell that can become haploid gametes (egg and sperm) when it divides in meiosis

16.
The pairs of homologous chromosomes line up in the center of the cell. The centromere of each chromatid pair attaches to one spindle fibre.

17. the genetic coding for a male

18. more genetic diversity or genetic variation in reproductive cells and thus in offspring which generally leads to an increased chance of survival

19.
The spindle fibres disappear, and a nuclear membrane forms around each set of chromosomes.

20.
Male gamete (sex cell)

21. the genetic coding for a female

22. symbol for haploid cells such as reproductive cells

23. symbol for diploid cells such as body cells

24.
The duplicated chromosomes and spindle fibers reappear in each new cell.

25.
Female gamete (sex cell)

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