Table III. Sex chromosomes: interchange and one-chromosome yields.
Chromosome number | ||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | X | SUM | M1 | M2 | |
F:X | 8 | 1 | 6 | 3 | 6 | 6 | 3 | 2 | 2 | 3 | 6 | 4 | 2 | 2 | 0 | 1 | 5 | 0 | 0 | 2 | 1 | 0 | 63 | 54.4 | 52.6 | |
M:X | 4 | 2 | 2 | 4 | 6 | 8 | 4 | 3 | 3 | 2 | 6 | 4 | 0 | 2 | 0 | 3 | 0 | 2 | 3 | 1 | 0 | 1 | 0 | 61 | 74.9 | 73.1 |
M:Y | 2 | 0 | 4 | 3 | 0 | 1 | 0 | 2 | 6 | 0 | 1 | 1 | 1 | 0 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 2 | 1 | 34 | 25.4 | 36.1 |
Corresponding to Table I for autosomes, each entry shows the number of cells observed with at least one color junction (i.e., interchange) between a sex chromosome and another chromosome. The notations F:X and M:X refer to interchanges involving the X chromosome in females and in males respectively; M:Y refers to interchanges involving the Y chromosome in males. The last three columns show the measured summed one-chromosome yields f(j) (SUM, compare Table I), and corresponding predictions (compare Fig. 2) if the individual chromosome sensitivities were linearly proportional to chromosome DNA content (column M1), or if they were proportional to {DNA content}2/3 (column M2).