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cell division
CELL DIVISION-SBOT
Terms | Definitions |
---|---|
traits | characteristics |
inherited | trait that is passed from parents to offspring |
zygote | fertilized egg |
genetics | study of heredity |
meiosis | type of cell division that produces gametes |
gametes | reproductive cells |
stem cell | cells that are undifferentiated |
differentiation | process where cells are changed into a specific blood cell, tissue cells, etc. |
sex cells are produced during this process | meiosis |
replication | process by which DNA is duplicated |
RNA | molecule used in the making of proteins |
How many cells does meiosis produce | 4 |
centromere | point of a CHROMOSOME WHERE TWO PARTS MEET |
gene | parts of a chromosome that control the inherited traits |
allele | one of the two or more forms of a particular gene |
homozygous | have two like genes for the same trait |
heterozygous | having two unlike genes for the same trait |
dominant gene | gene whose trait always shows itself |
recessive gene | gene of a trait that is hidden when the dominate gene is present |
Number of chromosomes in the nucleus | 46 |
phenotype | physical showing/expression of a trait |
genotype | genetic make up of a trait |
interphase | resting state of a normal cell |
prophase | stage where chromosomes condense and become visible |
metaphase | stage where nucleus disappears and chromosomes line up |
anaphase | stage where chromosomes seperate to opposite ends of the cell |
telophase | stage where nucleus forms in each new cell, final stage of mitosis or meiosis |
number of chromosomes inherited from each parent during reproduction | 23 |
centrioles | small cylindrical cell organelle that helps cell divide in a perpendicular fashion during mitosis |