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What is recombination and how does it work? is it the same thing as crossing-over? if an organism practiced self-fertilization,

Posted on October 23, 2021 By Jeffrieskids13 3 Comments on What is recombination and how does it work? is it the same thing as crossing-over? if an organism practiced self-fertilization,

What is recombination and how does it work? is it the same thing as crossing-over? if an organism practiced self-fertilization, would all of its offspring be genetically identical? why/why not?

Biology

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Comments (3) on “What is recombination and how does it work? is it the same thing as crossing-over? if an organism practiced self-fertilization,”

  1. Expert says:
    October 23, 2021 at 8:24 am

    regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.

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  2. Gkenneth2017 says:
    October 23, 2021 at 1:33 pm

    Recombination is the method by which organisms can randomly assort their genotypes amongst each other to create offspring with a different haplotype than either of its parents. This can be done by either copying sequences from one homologous chromosome to another (no physical exchange) or crossing over (physical exchange. 
    Crossing over is a mechanism in eukaryotes by which recombination can occur, in which the two homologous chromosomes contributed by both parents literally cross over and break at certain points to exchange certain sections of the chromosomes amongst each together.
    Self fertilizing organisms typically do not produce offspring that are genetically identical. However, this has an inbreeding effect on its offspring, since it is recombining from the same genotype and so has a higher chance of producing homozygous offspring. This is very detrimental for mammals and some eukaryotes, but in some other organisms such as bacteria, homozygosity is typically not an issue.

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  3. Expert says:
    October 24, 2021 at 12:40 am

    affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.

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