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

Explain the term kwashiorkor, Explain the term Kwashiorkor? The term Kw...

Explain the term Kwashiorkor? The term Kwashiorkor means the 'disease the first child gets when the second baby is born', that is, 'the sickness of the deposed child'. Thus, th

Metamerism or segmentation, Metamerism oe Segmentation In the early c...

Metamerism oe Segmentation In the early coelomates the coelom was not divided into segments, the whole body cavity was a single space. Hence body movements were not precise.

Prevention and control of water pollution, Various ways/techniques suggeste...

Various ways/techniques suggested for control of water pollution are as follows: 1. Pollutants (radio active, chemical, biological) present in water bodies can be removed by app

Define integrity of cartilage function of manganese, Define Integrity of ca...

Define Integrity of cartilage Function of Manganese? Mn plays an important role in proteoglycan biosynthesis, which is essential for the integrity of cartilage. Bone defects ha

Discuss haematoxylin and its subtypes in detail, Question 1 Discuss how yo...

Question 1 Discuss how you would perform mounting of stained sections. List commonly used mounting media in histopathology laboratory. Add a note on advantages and disadvantages o

Striped muscles, STRIPED MUSCLES - These muscles are found in the li...

STRIPED MUSCLES - These muscles are found in the limbs, body walls, tongue, pharynx and beginning of oesophagus and are under the control of animal's will. These muscle f

Define excretion of iron in human body, Define Excretion of Iron in Human B...

Define Excretion of Iron in Human Body? Our body has a limited capacity to excrete iron once it has been absorbed. Daily losses in adult man are between 0.9 to 1.05 mg. About 0

Global Warming Prevention, Preventive steps for global warming :  Growing ...

Preventive steps for global warming :  Growing trees in vacant places. Growing social forests and protect them. Promoting abundant growth of phytoplankton plant species in marine

What do you mean by ganglia, Q. What are ganglia? Neural ganglia or Gan...

Q. What are ganglia? Neural ganglia or Ganglia (singular ganglion) are structures located outside the central nervous system (for instance, beside the spinal column or near vis

What is the molecular formula of glucose, Q. What is the molecular formula ...

Q. What is the molecular formula of glucose? How can its structural formula be explained? The molecular formula of glucose is C 6 H 12 O 6 . Structurally glucose is a hexago

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