chapter9
Terms
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- What is the cell doing during the 5 portions of interphase?
- synthesis, replication, duplication of DNA
- The longest period of a cells life is?
- interphase
- waht is the cell doing during the G portion?
- growth and cellular metabolism
- Cell division usually occurs in 2 events?
-
1.Mitosis
2. Cytokenisis - Cytokenisis refers to the division of the?
- cytoplasm
- Human body's nuclei contains ______ pairs of chromosomes?
- 23 pairs of chromosomes
- A region of attachment for two sister chromides is the?
- contromere
- sister chromotides are?
- duplication chromosones held together by a common centromere
- Mitosis in humans usually results in formation of?
- 2 deploid cells
- what does diploid mean?
- cells have both cromosomes as a pair of cromosomes and body of a somatic cell
- What does haploid mean?
- Cells with one of the chromosomes from the pairs of chromosomes, gametes, sex cells, egg or sperm.
- what occurs in prophase
- chromosomes condense, nuclear membrane disinergrates, nucleti breaks up
- what occurs in prophase?
- chromosomes line up at the equator, spindle appartus, breaks up
- waht occurs in annaphase?
- chromosones pull apart and migrate to poles.
- How do plant cells split into 2 new cells?
- forms a cell plate?