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the germ cell lineage. As the zygote undergoes mitotic divisions the germ plasm is ultimately restricted to a few cells of the embryo, these germ cells...

randomly "choosing" one homologue, resulting in haploid germ cells (sperm and ovum). Diploid (2n) cells have two copies (homologs) of each chromosome, usually...

ordinarily segregate again in the cell-divisions, which lead to the formation of the germ- cells, so that certain germ-cells include the determiner of one...

may be stored as a seed collection or, for trees, in a nursery. Germ plasm, the germ cell determining zone International Treaty on Plant Genetic Resources...

spore. The tip of the germ tube divides to form an octant of cells, and the first rhizoid grows as an extension of the original germ cell. The tip continues...

proposed the distinction between somatic cells and germ cells (arguing that chromosome number must be halved for germ cells, a precursor to the concept of meiosis)...

originally found was heterozygous for red, through variation occurring in a germ- cell. Crossing red with red, homozygous or pure-bred reds were obtained, with...

proposed the distinction between somatic cells and germ cells (arguing that chromosome number must be halved for germ cells, a precursor to the concept of meiosis)...

there may be other photos available for you to add. Sacharomyces cerevisiae cells in DIC microscopy. Black Périgord Truffle (Tuber melanosporum), cut in half...

haustoria penetrate the cells and absorb nutriment from them. Usually not more than one or two haustoria are found within a single cell and only a small proportion...

cavities (locules or "cells") in which a powdery mass (pollen) is located. The so-called cells are not to be confused with the cells of the plant tissue...

host to the advantage of the parasite making its home between or in the cells of the host. Both types of disease-production have the same ultimate result...

goldenseal acts as an "antibiotic" to the mucous membranes not by killing germs directly, but by increasing the flow of healthy mucous, which contains its...

material is a substance of low-heat conductivity which has many pores or cells. These cells are filled with air (practically still air); consequently the efficiency...