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.

Keep Learning Biology Explanations

What is DNA excision repair?

Sometimes DNA gets damaged due to certain chemicals or radiations like the UV rays or any other mutagens. It is ...

What are Monoclonal antibodies?

Monoclonal antibodies are antibodies that are made by identical immune cells that are all clones of a unique parent cell. ...

What is DNA ligase?

A ligase is an enzyme that can catalyze the joining of two large molecules by forming a new chemical bond, ...

What is DNA sequencing?

DNA sequencing is the process of determining the nucleic acid sequence which is the precise order of nucleotides in DNA. ...

What is Hibernation?

Hibernation is a state of inactivity and metabolic depression in endotherms. Hibernation refers to a season of heterothermy characterized by ...

What are Tissues?

A tissue is a cellular organizational level between cells and a complete organ. A tissue is an ensemble of similar ...