What is Aneuploidy in Biology? PDF Book

Learn Aneuploidy definition in biology with explanation to study “What is Aneuploidy”. Study aneuploidy explanation with biology terms to review biology course for online degree programs.

Aneuploidy Definition

  • If either of the aberrant gametes unites with a normal one at fertilization, the zygote will also have an abnormal number of a particular chromosome, a condition known. as aneuploidy.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson

Aneuploidy Explanation

Aneuploidy is the presence of an abnormal number of chromosomes in a cell, for example a human cell having more than the normal 46 chromosomes in their nucleus. Aneuploidy is the result of non disjunction of the chromosomes during mitotic or meiotic division chromosomes. An important example of this is the down syndrome which results from trisomy in the 21st chromosome when the chromosomes fail to separate and it results in the daughter cell having 2 copies of the chromosome instead of 1.

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