Genetic recombination, Biology

Assignment Help:

Mutations are the only kind of variability generating mechanism in prokaryotes and asexually reproducing organisms. But in eukaryotes where sexual recombination occurs, even in one generation there is a marked reshuffling of genes in the chromosomes which amplifies the genetic variability in a population. The kind of variability generated by recombination is tested by natural selection in as many genetic backgrounds as possible and in as short time as possible (say in one generation). Thus one of the greatest and fundamental advantages of sexual reproduction is the generation of variability. Provided the populations are large, even if mutations do not exist, the mechanism of sexual recombination alone would be generating new genotypes for very long time.


Related Discussions:- Genetic recombination

Hypothermia, Hypothermia As the blood passes through the oxygenato...

Hypothermia As the blood passes through the oxygenator, hypothermia machine allows the blood to cool to the required temperature. Generally, the temperature is brought dow

Predominant feature of steatorrhoea, Q. Predominant feature of steatorrhoea...

Q. Predominant feature of steatorrhoea? A predominant feature is delayed and defective absorption of fat, which results in bulky stools containing large quantities of fat (know

Animal and plant cells, Animal and Plant Cells The internal structural ...

Animal and Plant Cells The internal structural organisation and information related with hereditary characters and metabolic pathways are similar in all eucaryotic cells whethe

What is a community, What is a community? What is the difference between th...

What is a community? What is the difference between the concepts of community and population? A community is a set of populations of living beings that live in the similar regi

Is herbivorism a form of predatism, Is herbivorism a form of predatism? ...

Is herbivorism a form of predatism? Herbivorism is a type of predatism in which first order consumers feed from producers (plants or algae). For instance, birds and fruits, hum

Use of toxic amino acids, Q. Explain Use of Toxic amino acids? Lathyru...

Q. Explain Use of Toxic amino acids? Lathyrus sativus (kesari dhal) seeds contain toxic amino acid beta-oxalyl aminoalanine (BOAA), is considered to be responsible

Functions of synergids, Functions of Synergids Ultra structurally the ...

Functions of Synergids Ultra structurally the structure and concentration of cell organelles reveals that synergids are metabolically active. The following Wee functions are a

Total arterial re-vascnlarisation, Total Arterial Re-vascnlarisation :  In...

Total Arterial Re-vascnlarisation :  In total arterial re-vascularisalion (TAR) end of the right internal mammary artery (RIMA) or radial arlery (RA) is anastomosed to the side of

Explain phylum mollusca, Phylum Mollusca (47,000 species) The segmentat...

Phylum Mollusca (47,000 species) The segmentation and coelom may not exist. Diversification through modifications of head, foot; mantle and 'radula for feeding. .Visceralorgans

Affect the rate of cellular respiration, how does temperature affect the ra...

how does temperature affect the rate of cellular respiration? please explain with great detail!

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd