Xem 1-18 trên 18 kết quả Heredity
  • Chapter 2 covers the basic principles of inheritance, first described by Mendel, that form the foundation of the Laws of Segregation and Independent Assortment. You will see in chapter 4 how these laws relate to chromosome segregation during meiosis.

    ppt43p tangtuy04 12-03-2016 7 2   Download

  • Chapter 11 provides knowledge of DNA and Its role in heredity. In this chapter, we will address the following questions: What is the evidence that the gene is DNA? What is the evidence that the gene is DNA? How is DNA replicated? How are errors in DNA repaired? What are some applications of our knowledge of DNA structure and replication?

    ppt81p tangtuy05 01-04-2016 10 1   Download

  • Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution, and taxonomy.[1] Biology is a vast subject containing many subdivisions, topics, and disciplines.

    pdf417p binhnguyenhoangda 20-03-2012 318 120   Download

  • Di truyền (tiếng Anh: heredity) là hiện tượng chuyển những tính trạng của cha mẹ cho con cái thông qua gen của bố mẹ. Trong sinh học, di truyền chuyển những đặc trưng sinh học từ một sinh vật cha mẹ đến con cái và nó đồng nghĩa với di chuyển gen, gen thừa nhận mang thông tin sinh học (hay thông tin di truyền). Ngoài ra, các đặc điểm về tính cách, nhận thức và tư duy của con cái có thể được tiếp nhận từ bố mẹ thông qua môi trường sinh họat gia đình (các thói quen,...

    pdf11p phuonghoangnho 22-03-2010 163 57   Download

  • Phân tử ADN được coi là "cơ sở vật chất của tính di truyền ở cấp độ phân tử" (molecule of heredity). Tuy nhiên, thực chất về mặt cấu tạo, các ADN không phải một phân tử đơn thuần mà nó được tạo thành từ hai chuỗi polynucleotide, chúng liên kết với nhau và uốn quanh 1 trục tương tự 1 chiếc thang dây xoắn. Cấu trúc này được gọi là cấu trúc xoắn kép (double helix)

    pdf6p poseidon09 10-08-2011 46 14   Download

  • Genetics is the science of genes, heredity, and the variation of organisms.[37][38] Genes encode the information necessary for synthesizing proteins, which in turn play a large role in influencing (though, in many instances, not completely determining) the final phenotype of the organism. In modern research, genetics provides important tools in the investigation of the function of a particular gene, or the analysis of genetic interactions. Within organisms, genetic information generally is carried in chromosomes, where it is represented in the chemical structure of particular DNA molecules....

    pdf464p khangoc2392 26-09-2012 28 7   Download

  • PRIOR to this, no complete, authentic, and authorized record of the work of Mr. Edison, during an active life, has been given to the world. That life, if there is anything in heredity, is very far from finished; and while it continues there will be new achievement. An insistently expressed desire on the part of the public for a definitive biography of Edison was the reason for the following pages. The present authors deem themselves happy in the confidence reposed in them, and in the constant assistance they have enjoyed from Mr.

    pdf348p believe11 20-02-2013 43 9   Download

  • Even in work that lies so near the fortuities of animate nature as dairying, stock−breeding, and the improvement of crop plants, a determinate, reasoned routine replaces the rule of thumb. By mechanical control of his materials the dairyman, e.g., selectively determines the rate and kind of the biological processes that change his raw material into finished product.

    pdf64p bi_ve_sau 05-02-2013 22 4   Download

  • When did humans appear? What is it that makes us different from the rest of the animals? In what way did language develop? Why is it so important to have deciphered the sequence of the human genome? This book offers answers to these and many other questions about the mysteries and marvels of human evolution. Scientists maintain that modern humans originated in Africa because that is where they have found the oldest bones.

    pdf56p maket1311 16-10-2012 20 3   Download

  • HereDe Lolmewrote not in his usual capacity as an observer andtheorist of government, but as an engaged political participant. He embraced the Repre ´sentants’ call for reformand republican renewal inseveral anonymous polemics that contributed to the vibrant public debate thatGeneva’s rulers found impossible to contain.Themost important of these publicationswas the 1767 La purification des trois points de droit souille ´s par un anonyme (The purification of three soiled points of law by an anonymous author).

    pdf400p huetay_1 27-02-2013 32 3   Download

  • France holds a rather unusual position in the field of evolutionary biology. Whereas French naturalists from Buffon, Cuvier and Lamarck onwards made great discoveries in centuries past, French biologists missed the turning when it came to genetics. Until the 1970s, most French biologists were convinced that genetics was not as interesting as developmental science (some "rare species", for example R. Chandebois, still hold this view). For them, the general principles of heredity resided in the cytoplasm rather than in the genome.

    pdf290p camchuong_1 04-12-2012 22 2   Download

  • p 01-01-1970   Download

  • p 01-01-1970   Download

  • Uncovering Recurrent Submicroscopic Rearrangements As a Cause of Disease For five decades since Fred Sanger's (1) seminal discovery that proteins have a specific structure, since Linus Pauling's (2) discovery that hemoglobin from patients with sickle cell anemia is molecularly distinct, and since Watson and Crick's (3) elucidation of the chemical basis of heredity, the molecular basis of disease has been addressed in the context of how mutations affect the structure, function, or regulation of a gene or its protein product.

    pdf446p crius75 04-01-2013 29 1   Download

  • When the first edition of this book was published in 1993, I commented how notions regarding Tourette’s syndrome (TS) had undergone recent dramatic changes. Major shifts in views of the disorder included identification of its complex spectrum of clinical features (including tics and specific behavioral disorders, particularly obsessive-compulsive disorder and attention deficit hyperactivity disorder), establishment of heredity as a major etiological factor, and recognition that, rather than a rare disorder, it occurs quite commonly in the population....

    pdf548p crius75 04-01-2013 19 1   Download

  • Estrogen (ES-truh-jin): A type of hormone made by the body that helps develop and maintain female sex characteristics and the growth of long bones. Estrogens can also be made in the laboratory. They may be used as a type of birth control and to treat symptoms of menopause, menstrual disorders, osteoporosis, and other conditions. Fallopian tube (fuh-LOH-pee-in): A slender tube through which eggs pass from an ovary to the uterus. In the female reproductive tract, there is one ovary and one fallopian tube on each side of the uterus.

    pdf47p taisaokhongthedung 07-01-2013 25 1   Download

  • he Theory of the Gene. The book summarizes theoretical conclusions that Morgan has drawn from more than fifteen years of empirical work. The geneticist had initially set out to challenge Mendel’s principles of heredity, but he writes that his work on the chromosomal transmission of genetic characteristics in the fruit fly, Drosophila melanogaster, has instead confirmed them. His studies have, in addition, begun to identify the physiological bases of observed patterns of genetic inheritance.

    pdf374p lyly_5 22-03-2013 25 1   Download

  • Chapter 12 - Patterns of inheritance, after studying this chapter, you should be able to accomplish the following outcomes: List the approaches to science that made Gregor Mendel's genetic experiments successful, define Mendel's law of segregation, contrast dominant alleles with recessive alleles, define genotype and phenotype,...

    ppt41p tangtuy07 02-04-2016 3 1   Download


Đồng bộ tài khoản