Genetic variability in sexually reproducing organisms

Related BrainMass Solutions

• Discussion on sexual and asexual reproduction

  Name two organisms that reproduce sexually and two that reproduce asexually. The reproductive system in all living organisms tend to differ based on species.

• Dobzhansky's Experiments and Natural Selection

  The rise of balanced polymorphism as an evolutionary mode in sexually reproducing organisms has been a result of inter-populational selection. Polymorphism is a homeostatic device by which populations can persist despite fluctuation in environment.

• Hardy Weinberg principle

  The Hardy Weinberg principle of genetic equilibrium tells us what to expect when a sexually reproducing population is: a. at genetic equilibirium b. growing c. migrating d. evolving e.

• Explaining prevalent mutations in a small and large population

  In sexually reproducing organisms, genetic recombination is the realloc action of alleles and chromosomes.

• Mechanisms of evolution, natural selection, mutation

  In organisms that reproduce sexually, most of the genetic variation in a population results from the unique combination of alleles that each individual receives.

• Mitosis and Meiosis Processes

  Therefore, organisms undergo mitosis when they grow whereas they undergo meiosis when they want to sexually reproduce. If meiosis never took place, every organism in an individual species would be genetically identical.

• Meiosis, independent assortment

  Although mutations are the ultimate source of genetic variability, both meiosis and sexual reproduction also can contribute to new genetic combinations in offspring.

• Meiosis & Sexual Reproduction

  Meiosis is the process of cell division in sexually reproducing organisms that reduces the number of chromosomes in reproductive cells from diploid to haploid, leading to the production of gametes in animals and spores in plants. http://www.thefreedictionary.com

• "Survival of the Fittest" in terms of Natural Selection

  Becasue of environmental conditions, two different areas in a continent have different types of organisms and species. And the struggle for existence in an environment results in the organism reproducing to leave more of its kind to establish.