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Genetic recombination cannot increase the diversity at the gene level, but it can increase the diversity at the chromosome level, which increases the diversity of the levels above the chromosome level (cell, individual diversity), and it should be said that it can increase the genetic diversity of organisms.
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Yes, because genetic diversity includes genetic diversity, genetic recombination produces new genes, which leads to an increase in genetic diversity, which in turn increases the genetic diversity of organisms.
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Yes. All changes that occur in genes will eventually increase the genetic diversity of organisms.
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Biodiversity mainly includes species diversity, genetic diversity and ecosystem diversity. The diversity of species is the direct embodiment of biodiversity, and genetic diversity is the basis of biodiversity.
Biodiversity refers to a stable ecological complex formed by the regular combination of a variety of living organisms (animals, plants, microorganisms) within a certain range. This diversity includes the diversity of animals, plants, and microorganisms, the diversity of genetic and variation of species, and the diversity of ecosystems. Among them, the diversity of species is the key to biodiversity, which not only reflects the complex relationship between organisms and the environment, but also reflects the richness of biological resources.
Biodiversity is the sum of the ecological complexes formed by organisms and their environment and the various ecological processes associated with them, which are composed of parts such as genetic (genetic) diversity, species diversity and ecosystem diversity. Genetic (genetic) diversity refers to the diversity of genetic factors and their combinations that determine traits in an organism. Species diversity is the manifestation of biodiversity on species, which can be divided into regional species diversity and community species (ecological) diversity.
Ecosystem diversity refers to the diversity of habitats, biomes and ecological processes within the biosphere. Genetic (genetic) diversity and species diversity are the basis of biodiversity research, and ecosystem diversity is the focus of biodiversity research.
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Yes, genetic recombination is a heritable variant because the genetic material has changed.
The three major heritable variants are genetic mutations, genetic recombination, and chromosomal variations.
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"Heritable variation" refers to variations in which genetic material has changed, genetic mutations, genetic recombinations, chromosomal variations are all heritable variants (because the genetic material has changed). However, heritable variants are not necessarily passed on to offspring (heritable variants that occur in somatic cells are usually not passed on to offspring).
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Genetic mutations, genetic recombination, and chromosomal variations are all heritable variants, but they are not necessarily all inherited variants;
Variation has sense variation, which is generally hereditary; There are also nonsense variations, which are variations that are not inherited or do not alter traits.
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As long as the genetic material is changed, then it is heritable variation, but it is not necessarily passed on to offspring, somatic variation will not be passed on to offspring, but the variation of germ cells will be passed on to offspring, and germ cells are the connection between parents and offspring, or something that communicates.
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These are all variations in genetic material, and they are all heritable variations, but even if they are all heritable variations, they may not all be manifested in future generations.
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It should be "may" (may, maybe) to produce a new genotype, and the disgusting thing about this question is that it is not a test of knowledge points but a play on words.
The "can" in this topic means that it must be produced every time (must, surely), but some genetic mutations, such as synonymous mutations, although the base sequence changes, due to the degeneracy of the codon, the amino acid sequence does not change, so in terms of the genotype in the concept of high school biology, it does not change. But even synonymous mutations still fall into the category of "mutations" and are heritable.
Similarly, some genetic recombinations, such as homologous chromosome exchange fragments, do not produce new genotypes if the fragments are non-coding regions of the DNA, but they do produce variations at the genome level.
If you have to pick this "can", B can't be chosen, so choose C.
Damn test-taking exams!
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Choose BC for bi-entry questions, ignore it for multiple-choice questions, don't think so much!! Believe in yourself!! I've seen a lot of this kind of question.,Of course,The college entrance examination won't be so unlevel.,Don't worry.。。 The main thing is to acquire knowledge.
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can produce new genotypes, but genetic recombination cannot produce new genes.
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