GENETICS?

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GENETICS?

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Asked 9/28/2012 9:14:46 AM

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User: GENETICS?

Weegy: Genetic make-up is the most important factor dictating vigor and potency. Its also called PHENOTYPE.
chikaygoods|Points 250|

User: WHAT ARE GENETICS

Weegy: 1.DNA wraps around histone proteins forming nucleosomes; the "beads on a string" structure (euchromatin). 2.Multiple histones wrap into a 30 nm [ fibre consisting of nucleosome arrays in their most compact form (heterochromatin). 3.Higher-level DNA packaging of the 30 nm fibre into the metaphase chromosome (during mitosis and meiosis). ]

User: what is a hybrid?

Weegy: Originally from a cross of Siamese and Burmese. Today Tonkinese are bred mostly to other Tonkinese, [ though in some associations Siamese and Burmese are still permitted outcrosses. In reality I think Siamese are very seldom used since the show Siamese has changed so much , it is very different in type from what Tonk breeders are breeding for. In any case, breeders aren't just continuing to cross Siamese and Burmese and produce first generation crosses as Tonkinese. ( And by now, those 2 breeds have moved farther apart in conformation , so the results of such a cross would be extremely unpredictable in type.) Tonkinese are delightful cats. Re the word "hybrid" : There are different definitions for the term. Some people use it only for a cross of 2 different species . And from a scientific sense, that might be correct. But there is a long history in the pedigreed dog and cat fancies of also using the term "hybrid" to mean a cross between 2 breeds of the same species. In fact, Tonkinese is in the registration category "domestic hybrid" in TICA. (They use "domestic hybrid" to distinguish from the wild hybrid breeds like Bengals, Savannahs and Chausies which are developed from crosses between domestic cats and a wild cat species. ) One can see in various breed standards use of some form of the word "hybrid" to mean a cross with another breed. . For example, in breeds originating from "natural breeds" of Western origin, certain colours or patterns originating from Southeast Asian cats are not permitted because this would be "evidence of hybridization". To quote from the Disqualification section of the CFA breed standard for American Shorthair: "DISQUALIFY: cats showing evidence of hybridization resulting in the colors chocolate, sable, lavender, lilac, or point-restricted (i.e.Siamese-type markings). ]

User: why are daughter cells produced during meiosis?

Weegy: Mitosis produces two daughter cells that are identical to the parent cell. If the parent cell is haploid (N), then the daughter cells will be haploid. If the parent cell is diploid, the daughter cells will also be diploid. [ N ? N 2N ? 2N This type of cell division allows multicellular organisms to grow and repair damaged tissue.Meiosis produces daughter cells that have one half the number of chromosomes as the parent cell. 2N ? N Meiosis enables organisms to reproduce sexually. Gametes (sperm and eggs) are haploid. Meiosis involves two divisions producing a total of four daughter cells ]
mythmoh|Points 5339|

User: Gregor Medels principles of genetics apply to

Weegy: Gregor Medels principles of genetics apply to all organisms.
Expert answered|sharpies|Points 8502|

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If an organisms diploid number is 12, its haploid number is?

Weegy: 6... haploid is simply half of diploid User: How is the chromosome reduced between meiosis 1 and meiosis 2? Weegy: Meiosis occurs in diploid cells. The chromosomes duplicate once, and through two successive divisions, four haploid cells are produced, each with half the chromosome number of the parental cell. User: if an organism has 4 linkage groups, it has eight chromosomes? Weegy: if an organism has 4 linkage groups, it has eight chromosomes? true (More)

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Asked 9/28/2012 9:34:05 AM

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