Meiosis and Meitosis Flashcards
What is the key to sexual reproduction
meiosis
one diploid cell divides into
four haploid cells
how many rounds of division in meiosis
two
what involves genetic reccombination
meiosis
what increases genetic variability
meiosis
what involve the “cross over” of homologous chromosomes
meiosis
What phase does the separation of homologous chromosomes into two haploid daughter cells
meiosis 1
what phase do the chromosomes condense
Prophase 1 (meiosis)
what phase do the homologous chromosomes line up together
prophase I (meiosis)
what phase does reccombination occur
prophase I (Meiosis)
what phase do the spindles form
prophase I (Meiosis)
what attaches to the chromosomes in prophase I (meiosis)
kinetochord
what phase does the nuclear envelope break down?
prophase I (meiosis)
What phase do the chromosomes line up at the equator
Metaphase I
Are the homologous pairs still together during metaphase I
YES
What phase do the homologous pairs separates to oppisite sides
anaphase I (meiosis)
are the sister chromatids still together during anaphase I
YES
what are the chromosomes pulled by during anaphase I (meiosis)
spindle microtubules
what phase does the spindle disappear
Telophase I (meiosis)
what phase does the nuclear envelope reform
Telophase I (meiosis)
what phase does cytokinesis occur`
Telophase I (meiosis)
Two daughter cells have in meiosis
one of each chromosome pair
what phase do the sister chromatids separate into two haploid daughter cells
meiosis II
what phase do the chromosomes recondense
prophase II (mei)
what phase does the spindle reform
prophase II (MEI)
