BioScience Dictionary

 
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Found Binary fission 6 times.

Displaying results 1 to 10.

1. Binary fission
Division of a cell into two daughter cells after DNA replication and nuclear division ( mitosis ). A form of asexual reproduction .

2. Binary fission
The method by which bacteria reproduce. The circular DNA molecule is replicated; then the cell splits into two identical cells, each containing an exact copy of the original cell's DNA.

3. Chlamydomonas
A genus of green algae consisting of more than 600 species worldwide, living in marine, freshwater, soil, and even snow environments. They are single cell ed eukaryotic organisms ranging from 5 to 100 micrometers long which can be roughly spherical, egg shaped, or elliptical. Most species have two flagella (coming out the same side) for swimming. Most of the time they are haploid and reproduce by dividing into two ( binary fission ); when they are stressed they can form gamete s which fuse to form diploid cyst s which later divide into four haploid cells. Taxonomically they have been classified under plants, animals, and protist s. Several species from this genus are important model organisms for the study of cell biology , molecular biology , genetics , plant physiology , and biotechnology . The species most commonly used in scientific experiments is Chlamydomonas reinhardtii (also known as C. reinhardi or C. reinhardii).

4. Division Schizophyta (bacteria)
This taxonomic division (which is in Kingdom Monera ) contains the bacteria (over 2,500 species). These are one-celled prokaryote s that usually reproduce asexually via binary fission (splitting in two).

5. Linkage
The proximity of two or more marker s (e.g., genes, RFLP markers) on a chromosome ; the closer together the markers are, the lower the probability that they will be separated during DNA repair or replication processes (binary fission in prokaryote s, mitosis or meiosis in eukaryote s), and hence the greater the probability that they will be inherited together.

6. Macronucleus (pl. macronuclei)
One of two cellular nuclei found in the single-celled ciliated protozoan "tetrahymena." This nucleus contains only gene s which are necessary for basic living and is in control of the organism's growth and reproduction (by binary fission ) during optimal survival conditions.