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

Nutritional factor that contribute to the malnutrition - chd, Define Nutrit...

Define Nutritional and metabolic factors that contribute to the malnutrition of CHD? Nutritional and metabolic factors that contribute to the malnutrition of CHD infant are ele

Define effect micronutrients during pregnancy period, Define effect Micronu...

Define effect Micronutrients during pregnancy period? The need for many vitamins and minerals is increased during pregnancy. Since energy intake increases, the requirements for

Temperature affecting the growth of microorganism, Temperature is one of th...

Temperature is one of the important factors affecting the process of growth in bacteria, as it has a bearing on chemical reactions. The temperature at which the maximum growth occu

Explain treatment of acute pericarditis, Q. Explain Treatment of Acute peri...

Q. Explain Treatment of Acute pericarditis? Symptomatic Treatment Pain relief can be achieved with indomethacin 25 to 50 mg. thrice daily; Ibuprofen 600 mg. thrice daily

Explain in brief about the extra-ocular muscles, Extra-ocular muscles ...

Extra-ocular muscles There are, as you know, six extra-ocular muscles. Out of these, four are recti(straight) and two are oblique. They control the position and movement of th

Explain about the infantile beriberi, Explain about the Infantile beriberi?...

Explain about the Infantile beriberi? Infantile beriberi is commonly seen in many South-East Asian countries where the diets consist mostly of "polished rice" and are deficient

What causes the signs, In the case story, Reggie presented with three typic...

In the case story, Reggie presented with three typical signs of hip fracture-shortening, adduction, and the lateral rotation of the affected limb. What causes these signs? (HINT-th

Explain the term of measurement of height in veous pressure, Explain the te...

Explain the term of measurement of height in veous pressure? Measurement of Height: Measurement of height of venous pressure is done from the sternal angle of Louis verticall

Explain the interaction of vitamin a with vitamin e, Explain the Interactio...

Explain the Interaction of Vitamin A with Vitamin E? Of the various nutrients, the interaction of vitamin E, proteins, zinc and iron with vitamin A is of significance. Know? Le

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