FISH permits analysis of proliferating (metaphase cells)and non-proliferating (interphase nuclei) cells and is useful indetermining the percentage of neoplastic cells before and after therapy(minimal residual disease) (see examples at ; a reviewby ; a review of theuse of FISH in childhood leukemia, see ).
Examples of convergence are: fins or fin-like structures in fish,cuttlefish and whales; extreme similarity in alarm calls by five small birds;endothermy in dogs and ducks, wings of butterflies and birds.
Bacteria have a simple cellular organization: their genetic material is dispersed in the cytoplasm and for this reason they are named (proto nucleus).
As there is no agreement on the classification of the Protists, if you read different books draw a diagram to show how each text classifies these organisms.
Thus, Protists remind us of primitive life forms, even if they actually continued to evolve and attained astounding levels of complexity indeed as unicellular organisms.
Some of them form colonies made up of many individuals, for example the , which has a pretty starlike form and , whose members arrange themselves side by side in little groups.
Hence, do not consider as "proto animals" and the unicellular algae as "proto plants", because each species often shares animal and vegetable characteristics.
Heterozygote advantage (or overdominant selection) is an example in which anallele selected against in the homozygous state is retained because of thesuperiority of heterozygotes (for an example and a list of all known examples,see and ).
1008 - Microscopy society: "Amici del Microscopio".
1009 - A user-friendly guide to coastal planktonic ciliates.
1010 - Protist Information Server.
1011 - Protist-related websites - professional resources.
1012 - Prokaryotes, Eukaryotes, & Viruses Tutorial.
1013 - Protozoa - Some common freshwater types.
The plural of phylumis phyla. The animal (animalia) kingdom for example is divided intoapproximately 38 smaller phyla branches of the tree. The next levels downthe tree are "
Specific examples of pheromones includea substance produced by male cockroaches that orients females in the correctmating positions and a desert locust pheromone that accelerates sexualmaturation in adults of both sexes.
They belong to the kingdom of Protista, which is a group (family) of similarliving micro-organisms. Micro-organism means they are a very small livingcell.
Another example is the enzymes, which have severalother functions (transcription, cell cycle regulation, regulation of generearrangements).
The eye colour genes on the X chromosome ofDrosophila are for example closely adjacent but separable loci and not allelesof a single gene.