centromere is the primary constriction and constriction other
than primary constriction is called secondary constriction. it is
useful in the recognition of a chromosome from the set.
centromere is the primary constriction and constriction other
than primary constriction is called secondary constriction. it is
useful in the recognition of a chromosome from the set.
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menstruation
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constriction is one part of the thermometer that has like a
hill
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Dead
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Some snakes use constriction to kill their prey.
Women don't realize that body shapers can cause such
constriction that it cuts off blood flow.