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Answering questions about meiosis and ploidy

Name the phase in which a sister chromatid begins to separate from each other.

Give the name for homologous chromosomes being in separate cells at the end of cell division.

Give the name for the phase in which homologous chromosomes appear.

Give the name of the phase in which a homologous chromosome breaks apart and begins to pull to opposite ends of the cell.

Give the name for the phase in which sister chromatids are in separate cells.

Give the name for the phase in which sister chromatids appear.

Give the name for the phase which is comprised of three smaller phases.

What produces haploid sperm cells in plants?

On diploid makes _____ sperm cells.

50 diploid oogonia make ____ mature ova and ____ polar bodies.

Give the name for genes appearing in alternate forms.

Solution Preview

First of all, it's important to understand what meiosis is and what its purpose is. Meiosis is the division of cells to creat Gametes which are later used for reproduction. Sperm cells and ovules (egg cells) are gametes. Gametes have only one set of genetic information in them (haploid), as opposed to the two sets that most of our normal cells have (diploid).
There are 9 phases you should know about in Meiosis:

INTERPHASE: during interphase (before meiosis) the DNA undergoes replication making an exact copy of itself.

PROPHASE I: The DNA coils up and compacts itself into chromosomes (funny-looking lanky 'X' shaped things). Chromosomes are made up of two sister chromatids linked together by a cetromere. Homologous chromosomes then pair up together to form "tetrads". ***homologous choromosomes appear in this phase***

------> SIDENOTE: Remember that homologous means that the ...

Solution Summary

Here we go through the stages of meiosis and then provide extra information afterwards that would help answer the specific questions posed by the student.