Weba) 47 chromosomes b) 94 chromosomes c) 23 chromosomes d) 188 chromosomes e) 24 chromosomes. A geneticist determines that the order of four genes on a specific chromosome is CABD because the recombination frequencies were 35% for C-D, 24% for A-D, 23% for B-D, and 10% for A-B. WebThese masses are called Barr bodies after the cytologist who discovered them. XX ... one Barr body per cell, XXX females have 2 Barr bodies per cell, and XXY Klinefelter males have one Barr body per cell (Barr bodies are not observed in XY males). This is why X chromosome aneuploidy can be tolerated; all but one of the extra X chromosomes is
X Chromosome - Genome.gov
WebFor example, there would be two Barr bodies in a cell from an XXX female or XXXY male. in Turner syndrome, a woman lacks part or all of one of her X chromosomes (leaving her with just one functional X). People with this disorder develop as females, but often have short … However, an extra copy of some of the smaller chromosomes (13, 15, 18, 21, or … Learn for free about math, art, computer programming, economics, physics, … WebMF Lyon demonstrated that when the number of X-chromosomes was two or more than two, the number of Barr body was one less than the total number of X-chromosomes. No Barr bodies are found in normal males and people with Turner's syndrome. Two Barr bodies may be found in 47 XXX female, 48 XXXY male, 49XXXYY male. graco blue max airless hose
Number of Barr bodies in XXXXY is A) 1B) 2C) 3D) 4 - Vedantu
WebIn a normal female with the genotype 46XX , the number of Barr bodies would be 1. In a normal male with the genotype 46XY, the number of Barr bodies would be 0. However in a male with Klinefelter's syndrome (where the genotype is 47XXY), the number of Barr bodies would also be 1 [2] [3]. WebExpert Answer 100% (15 ratings) The number of barr bodies is always one fewer than the total number of X-chromosome. - a. XX nu … View the full answer Transcribed image text: … WebApr 9, 2024 · In the embryonic nuclei the X chromosome are counted and all but one are shut down. It does not matter whether the embryo is male or female. Men with Klinefelter syndrome have a Barr bodies in their nuclei, the same as 46,XX females. chill t-shirt