are hox genes the same for all animals?
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Many animal species have Hox genes. Hox genes are not unique to fruit flies. In fact, Hox genes are found in many different animal species, including mice and humans. ... In general, the genes of the different clusters work together to establish the identity of body segments along the head-tail axis.
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Variations. Most therian mammals have only one pair of sex chromosomes in each cell. Males have one Y chromosome and one X chromosome, while females have two X chromosomes. In mammals, the Y chromosome contains a gene, SRY, which triggers embryonic development as a male.
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 Yes! The exact DNA sequence is duplicated/replicated during DNA synthesis so the sister chromatids are exact copies of each other for every single nucleotide. ... Homologous chromosomes have the same genes BUT remember those genes could be different alleles which are coded for by slightly different nucleotide sequences.
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It's what transfers characteristics from one generation to the next. There are pretty obvious differences between plants and animals, but – at the chemical level – the cells of all plants and all animals contain DNA in the same shape – the famous “double helix” that looks like a twisted ladder.
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The 39 human HOX genes are located in four clusters (A-D) on different chromosomes at 7p15, 17q21. 2, 12q13, and 2q31 respectively and are assumed to have arisen by duplication and divergence from a primordial homeobox gene.
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We have established a comparative chromosome map between red panda (Ailurus fulgens, 2n = 36) and dog by chromosome painting with biotin-labelled chromosome-specific probes of the dog. Dog probes specific for the 38 automates delineated 71 homologous segments in the metaphase chromosomes of red panda.
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Orthologs are genes in different species evolved from a common ancestral gene. Paralogs are gene copies created by a duplication event within the same genome.
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Drosophila melanogaster is an important model for understanding body plan generation and evolution. The general principles of Hox gene function and logic elucidated in flies will apply to all bilaterian organisms, including humans. Drosophila, like all insects, has eight Hox genes.
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Sister chromatids are by and large identical (since they carry the same alleles, also called variants or versions, of genes) because they derive from one original chromosome. ... Homologous chromosomes might or might not be the same as each other because they derive from different parents.
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Genetic diversity is all the different genes contained in all individual plants, animals, fungi, and microorganisms. It occurs within a species as well as between species. Species diversity is all the differences within and between populations of species, as well as between different species.
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Genetic Similarities of Wolves and Dogs Wolves and dogs share much of the same genetics, so much so that wolves can be bred to dogs and produce viable offspring which can produce offspring. Wolves and dogs are genetically 98.8 percent identical.
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We are much more different from chimps than dogs are different from wolves. We share about 98-99% of our genes with chimps. ... These genes make us very different. Dogs have genes that make them keep some of the traits that wolves only have as cubs.
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Originally Answered: Are the antibiotics given to humans and animals the same? Why? The same, only different. Each of the species gets pretty much the same antibiotic for the same pathogen, but animals present with very different weights, which calls for somewhat different dosages.
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Birds of the same genus often cross breed, such as canaries and some finches, chickens, ducks, geese, pigeons, some parrots and some other similar types of Psitticines, and others of a similar genus. Not all birds can produce hybrids or breed together.
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Hares and rabbits are in the same family, Leporidae, but they're "different species, like sheep and goats are different species," Steven Lukefahr, a geneticist at Texas A&M University in Kingsville, said via email.
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Hox Genes. -Genes that specify segment identity-whether a segment in the early embryonic development will form in the head, neck, thorax, or abdomen, and they are all clustered together in one tiny spot.
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As nearly all female mammals have two X chromosomes, X-inactivation prevents them from having twice as many X chromosome gene products as males, who only possess a single copy of the X chromosome (see dosage compensation).