spindle fibers start to disappear, nucleur membrane forms, and cytoplasm begins to divide
chromatis pairs are fully visible, the nucleoluus and the nuclear memebrane disintegrate, and spindle fibers begin to form
chromatid pairs line up across center of the cell the centromemre of each pair attaches to spindle fibers
each chromatid pair splits at the centromere and seperates to opposite ends of the cell where they become identical chromosomes
cell grows and makes copies of its hereditary material.
process in which nucleus divide to form two new nuclei
structure in the ucleus that contains hereditary material
budding fission regeneration
when an organism with no nucleus divides into 2 identical oraganisms
A Small exact copy of the adult grows from body to parent
a wole new organism grows from each piece of parent
two sex cells,usually an egg and a sperm,come together
the joining of sperm and egg
sex cell in the male reproduction system
sex cell in the female reproduction system
human body cells are ...
human sex cells are...
process that produces haploid sex cells and ensures that offspring have the same diploid number as its parent
the nucleus divides and produces two neww cells with one duplicated chromosome each
the nuclei divide and the chromatids seperate, producing sex cells with half the number of chromosomes of the original nucleus
a code that contains info that an organism needs to grow and function
made an accurate model of dna in 1953
a dna is similar
the sides of the ladder is made up of...
the rungs on the ladder are made up of...
sections of dna on a chromosome
carrie the code for making proteins from the nucleus to ribosomes in the cytplasm
any permanent change in the dna sequence of a cell's gene by that cell.can be caused by factors like x-rays.sunlight,and some chemicals
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