While I was reading this chapter, I got a little bit confused with some key terms, since I didn´t know their connotation. At this point, I consider it´s really important to appreciate these scientific terms, to later comprehend the whole point of the author. Maybe these will not be so relevant at the middle of the book, but still I was really curious about knowing their sense. Some of them I understood their meaning in class, but any ways I blog them here if in future chapters they appear again.
At the same time, I realize all these key terms are extremely important to finally understand the author¨s purpose; The gene is the most important individual in natural selection. All the following terms are evolved within gene existence, so it is better to take a deep look at them!
Recessive: " a gene that is ignored"
Dominant: the opposite of the recessive one.
Mitosis: " a normal division of a cell into two new cells, each one receiving a complete copy of 46 chromosomes"
Meiosis: "This occurs only in the production of sex cells; the sperms or eggs". Meiosis is a cell division, taking place only in the testicles and ovaries, in which a cell with the full double set of 46 chromosomes divides to form sex cells with the single set of 23"
Cistron: It can be interprate as a gene or as the nucleotide chain.
Mimicry: copying of genes
Inversion: " it happens when a piece of chromosome detaches itself atboth ends, turns head over heels, and reattaches itsel in the inverted position"
lunes, 26 de noviembre de 2007
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