This chapter reviews the basic framework of corn cytogentics. Mutations that affect meiosis
are of considerable interest to the cytogeneticist, since they provide a method for identifying …

Sperm chromosomal complements of a man heterozygous for two reciprocal translocations
and exhibiting the karyotype 46, XY, t (5; 11)(p13; q23. 2), t (7; 14)(q11; q24. 1) were …

Segmental interchanges or reciprocal translocations refer to exchanges of segments
between non-homologous chromosomes of a chromosome complement. The only detailed …

We studied the orientation and segregation of a particular quadrivalent in living grasshopper
spermatocytes. Quadrivalents were detached from the spindle by micromanipulation, then …

Numerous naturally occurring mutations are heterozygous, and thus, a contributing source
of variation. Their crucial fate rests on the gametic fertility and viability. Translocations have …

Having reflected on the discrepancy between various views of chromosome behavior during
meiosis, we propose an alternative description of Mendel's first law of segregation by …

Materials and methods Five translocation heterozygotes designated as T-1, T-2, T-3, T-4 and
T-5 used in this study were isolated among plants raised from 40kR, 70kR and 90kR gamma …