Titlebook: Reproduction, Heredity and Sexuality; Stanton A. Cook Textbook 1964Latest edition Macmillan Publishers Limited 1964 heredity.reproduction.

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書(shū)目名稱(chēng)Reproduction, Heredity and Sexuality影響因子(影響力)




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書(shū)目名稱(chēng)Reproduction, Heredity and Sexuality網(wǎng)絡(luò)公開(kāi)度學(xué)科排名




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書(shū)目名稱(chēng)Reproduction, Heredity and Sexuality讀者反饋




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自由職業(yè)者

Fundamental Concepts,produce. In other words, the essence of sex is that it allows new combinations of characteristics to arise in organisms. And this potentiality has allowed living things to change with changing environments in space and time. It is this biological change that is called ..

在駕駛

The Nature of Inheritance, it by breeding similar and dissimilar kinds. From your observed results you might formulate some laws that you could test by using other organisms and other characters. This last method, known as the experimental method, has come into common use only in the twentieth century and is now taken quite for granted.

破譯密碼

Recombination and Sexual Reproduction,n occur in ways that don’t necessarily result in reproduction. Most such recombination goes on in lowly forms, such as viruses, bacteria, and molds. Complex plants and animals can recombine genes only by means of old-fashioned sex.

Basilar-Artery

Fundamental Concepts,ct that is really incidental to its central significance—which is that it allows organisms to recombine their attributes at the same time that they reproduce. In other words, the essence of sex is that it allows new combinations of characteristics to arise in organisms. And this potentiality has all

租約

The Nature of Inheritance,d with that. Or you might get out and contrast parents with their offspring, study family trees or pedigrees, or at least look at existing situations before formulating an explanation. Or maybe you would select an organism with some characteristic that you knew varied, and then would experiment with

SPURN

Complications of Inheritance,e paper back to the attention of the scientific world and confirmed and extended his results. Segregation and . recombination were unquestionably facts. In 1906, however, Bateson and Punnett discovered evidence indicating that recombination was not universal. In our discussion of complementary gene

氣候

Hereditary Matter: The Chromosome,. Through breeding experiments using whole organisms, it has been possible to develop laws of inheritance. The causes for these laws must be looked for in the physical makeup of the organism itself, in its cells and molecules. In other words we must shift our level of inquiry from the organism to th

Endoscope

Asexual Reproduction or Apomixis, case is found in unicellular plants and animals where there is doubling of cytoplasmic contents and replication of genetic material followed by division of the cell into two parts. Most reproduction in bacteria, blue-green algae, unicellular algae, and protozoa takes place in this way. These organi

AMPLE

Recombination and Sexual Reproduction,u consider sex to be equivalent to recombination. Usually we think of sex as involving two main processes: meiosis in a diplophase, and fusion of haploid gametes. Then, indeed, we can speak of sexual reproduction, and recombination of genes is its principal consequence. But recombination of genes ca