Those who do not possess the necessary special knowledge are unable to realise what remains of the first haploid generation in a phanerogamic plant or in a vertebrate animal.
"Darwin and Modern Science"
A.C. Seward and Others
The next stage is their separation to the haploid daughter-nuclei, which have resulted from the reduction process.
"Darwin and Modern Science"
A.C. Seward and Others
Other cases occur in which the number of chromosomes in the somatic cells is double the ordinary number-namely, 28-and others in which the number is 21. The normal number in the gamete, 7, is considered the simple or haploid number, and therefore the number 28 is called tetraploid.
"Hormones and Heredity"
J. T. Cunningham