Trisomy Notes: Definitions & Explanations PDF | Download eBooks
Study Trisomy lecture notes PDF with biology definitions and explanation to study “What is Trisomy?”. Study trisomy explanation with biology terms to review biology course for online degree programs.
Trisomy Definition:
If a chromosome is present in triplicate in the zygote (so that the cell has 2n + 1 chromosomes), the aneuploid cell is trisomic for that chromosome.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Trisomy Notes:
Trisomy is another important example of aneuploidy when the chromosomes fail to separate during meiosis. Trisomy occurs when one of the daughter cells receives two copies of chromosomes because the other received none. Down syndrome is an example of a trisomic disorder. Down syndrome is the trisomy of chromosome 21 and is typically associated with physical growth delays, mild to moderate intellectual disability, and characteristic facial features.
Keep Learning with Biology Notes
What are Nodes?
Nodes is simply the place on a plant stem where a leaf is attached. ...
What is Small intestine?
The small intestine or small bowel is an organ in the gastrointestinal tract where most of the end absorption of ...
What is Allergy?
Allergies, also known as allergic diseases, are a number of conditions caused by hypersensitivity of the immune system to typically ...
What is Ras protein?
Ras is a family of related proteins which is expressed in all animal cell lineages and organs. These ras proteins ...
What are Dihybrids?
This term is used to describe a hybrid that is heterozygous for alleles of two different genes. For example an ...
What is Heat?
The energy transferred between two substances at different temperatures is called heat. Heat is usually measured in units of energy ...