Flea Pupa. The flea larvae spin cocoons around themselves in which they move to the last phase of the flea life cycle and become adult fleas. The larvae can remain in the cocoon anywhere from one week to one year. Temperature is one factor that determines how long it will take for the adult flea to emerge from the cocoon.
Nondisjunction causes chromosomal disorders because sometimes an error in meiosis occurs when homologous chromosomes fail to separate which results in the organism receiving t â¦ he wrong number of chromosomes thus having a chromosomal disorder. 14 people found this useful.ondisjunction causes chromosomal disorders because sometimes an error in meiosis occurs when homologous chromosomes fail to separate which results in the organism receiving t â¦ he wrong number of chromosomes thus having a chromosomal disorder. 14 people found this useful.
Nondisjunction is the failure of chromosomes to seperate during meiosis. This failure can occur at Anaphase I or Anaphase II and results in trisomy or monosomy gametes. Common diseases taught in conjunction with nondisjunction are Down's Syndrome and Turner's Syndrome. Vocabulary words: meiosis, prophase, metaphase, anaphase, telophase, spindle fibers, sister chromatids, homologous pairs, centromere, centrioles, nondisjunction, trisomy, monosomy. What you need: