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In organisms that reproduce sexually, each offspring gets half its chromosomes from its mother and half from its father. Therefore, except in the case of monozygous twins, the chances of chromosomally identical siblings are very low.

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9y ago
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13y ago

Crossing over of chromosomes in meiosis, independent assortment of chromosomes in meiosis, and the development of genetic mutations.

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11y ago

By crossing over during meiosis, followed by gametic union during fertilization.

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Q: How can genetic variation be introduced to sexually reproducing organisms?
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Where do sexually reproducing organisms inherit their alleles from?

From their parents.


What constantly provides new variation for natural selection to act upon in a sexually reproducing popularion?

Firstly, mutation. In a sexually reproducing population recombination ( independent orientation of chromosomes and crossing over in meiosis and random fertilization ) is also a source of variation in populations.


How do sexually reproducing organisms produce gametes from diploid progenitors?

Through Meiosis


What are the offspring of sexual reproduction related to their parent?

What could be said is that the offspring will not be identical, genetically or regarding appearance; there will be variation between offspring and their sexually reproducing parents.


What would be produced by meiosis?

Meiosis is a type of cell division that occurs in sexually reproducing organisms. It produces haploid cells, which are also known as gametes.

Related questions

What are sources of genetic variation in sexually - reproducing organisms?

meiosisHuman recombination


What is the cause of variation in the offspring of sexually reproducing organisms?

recombination of alleles


Variation in the offspring of sexually reproducing organisms is the direct result of?

b) sorting and recombining of genes


What are two main sources for genetic variation in a population?

Mutation and the genetic recombination in sexually reproducing organisms.


If meiosis did not occur in sexually reproducing organisms?

If meiosis did not occur in sexually reproducing organisms, the chromosome number would double in each generation. Sexual reproduction results in new combinations of genetic traits.


Where do sexually reproducing organisms inherit their alleles from?

From their parents.


What is the primary cause of variation in offspring of sexually reproducing organism?

recombination of alleles


In sexually reproducing organisms, genes are transferred via _______________?

The gametes.


What causes variation in human beings?

the variations in genes, genes of sexually reproducing organisms will vary due to crossing-over of genes, mutations, and adaptations. In asexually reproducing organisms genes will vary through adaptations and mutations.


Why all organisms show variation?

Variations arise due to recombinations(gene rearrangements) ,mutations etc.The former is the principal source of variation in sexually reproducing organisms and the latter is the source of variation in asexual organisms.According to Darwin variation arises due to chance since all the above mentioned process occur in nature spontanuously all organisms show variation


What will happen if cell do not undergo meiosis in sexually reproducing organisms?

There will be no reproduction


Which is a source of genetic variation in sexually-reproducting organisms?

Basic source of variation in all organisms is mutation .