Robertsonian translocations are named after the American insect geneticist W. R.

Question

Robertsonian translocations are named after the American insect geneticist W. R. Robertson who first described these translocations in grasshoppers in 1916. In human, these translocations usually occur with chromosomes 13, 14, 15, 21, and 22. Other animals can experience these unusual translocations as well. Horses have a normal, diploid chromosome number of 64.

A) If a horse had a Robertsonian translocation involving two of its chromosomes, how many chromosomes would the individual horse have in a typical somatic cell containing this anomaly?

B)Robertsonian translocations are limited to a certain type of chromosome. What type or category of chromosome are usually involved in Robertsonian translocations?

Explanation / Answer

A.) Among the 64 chromosomes horse has 36 acrocentric chromosomes. Hence 36 chromosomes are involved in the robertsonian translocation.

B.) Robertsonian translocations are limited to acrocentric chromosome.

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