Question

If there r 4 chromosome how many barrbody will be there

Answer 1

Explanation:

Barr body (named after discoverer Murray Barr)[1] is the inactive X chromosome in a female somatic cell,[2] rendered inactive in a process called lyonization, in those species in which sex is determined by the presence of the Y (including humans) or W chromosome rather than the diploidy of the X. The Lyon hypothesis states that in cells with multiple X chromosomes, all but one are inactivated during mammalian embryogenesis.[3] This happens early in embryonic development at random in mammals,[4] except in marsupials and in some extra-embryonic tissues of some placental mammals, in which the father's X chromosome is always deactivated.[5]

In humans with more than one X chromosome, the number of Barr bodies visible at interphase is always one fewer than the total number of X chromosomes. For example, men with Klinefelter syndrome (47,XXY karyotype) have a single Barr body, whereas women with a 47,XXX karyotype have two Barr bodies. Barr bodies can be seen in the nucleus of neutrophils, at the rim of the nucleus in female somatic cells between divisions.

Answer 2

Answer:

Chromosomes come in matching pairs, one pair from each parent. Humans, for example, have a total of 46 chromosomes, 23 from the mother and another 23 from the father. With two sets of chromosomes, children inherit two copies of each gene, one from each parent.