Question

what is B chromosome​

Answer 1

Answer:

with B chromosomes

B chromosomes are chromosomes which are not needed for the life of a species. They are also called 'supernumerary' or 'accessory chromosomes'.

In addition to normal chromosomes (the karyotype), many species have B chromosomes. Wild populations of many animal, plant, and fungi species have B chromosomes. These chromosomes are not essential for their life, and are lacking in many individuals. So a population might have individuals with 0, 1, 2, 3 (etc.) supernumeraries.

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Answer 2

Explanation:

In addition to the normal karyotype, wild populations of many animal, plant, and fungi species contain B chromosomes. By definition, these chromosomes are not essential for the life of a species, and are lacking in some of the individuals. Thus a population would consist of individuals with 0, 1, 2, 3 B chromosomes