Animal cloning, Biology

Assignment Help:

Animal Cloning:

When entire animals are obtained from somatic cells of an animal, it is known as animal cloning. Cloning is usual in plants but in case of animals only some degree of success had been achieved so far.  In previous, nuclei from a tadpole were transplanted into the cytoplasm of an enucleated fertilized frog egg, and normal frogs were obtained. But in 1997 British scientists got success in cloning of sheep by transferring the nucleus from an udder cell of an adult sheep into the cytoplasm of a enucleated fertilized egg. Then the egg was transplanted into the uterus of a surrogate mother where it developed like a normal zygote into a normal lamb which has grown now into a normal adult sheep.

Udder cells from an adult sheep were primary cultured in vitro. The cultured cells were caught in the Go phase (quiescent stage) and then fused in vitro with enucleated ova of right stage. The fusion products were cultured in vitro before it transfers into the uteri of surrogate mothers. The chance  of success in obtaining normal embryo developed is rather low.
 
 In many situations, cloning is highly desirable since allows indefinite multiplication of an elite desirable without the risk of segregation and recombination during in meiosis, that must precede sexual reproduction. Clearly, the technique holds great promise in genetic research, mainly in understanding aging and curing genetic diseases. The technique need to be refined and expanded to other animals. However, in most of the countries, mainly in all developed countries, human cloning is prohibited.

Following the above report American scientist announced successful cloning of rhesus monkey using splitting technique; this is the closest species to humans where embryo splitting has been successful. 


Related Discussions:- Animal cloning

Determine the light-near dissociation test, Determine the Light-Near Dissoc...

Determine the Light-Near Dissociation Test The near  response should be  tested  in  a well  lit room  so that  the object  is clearly visible. The patient  is given  an  accom

Becoming online tutor, how can i work with u as an online biology tutor?

how can i work with u as an online biology tutor?

Emulsion products, E m u l s io n products Ground meat products s...

E m u l s io n products Ground meat products such as sausages, patties and luncheon meats are emulsion based products and their quality depends upon the ability of lean m

Digestive system, Explain the process by which the kidney varies the volume...

Explain the process by which the kidney varies the volume and concentration of urine

Explain monascus species, Explain Monascus species Most of the reports ...

Explain Monascus species Most of the reports of food colourants from microbial sources involve Monascus species, particularly Monascus purpureus, followed by  Rhodotorula speci

Effect of alcoholic beverage, Q. Why does the urinary volume increase when ...

Q. Why does the urinary volume increase when alcoholic beverages are ingested? Alcohol inhibits the ADH (antidiuretic hormone) secretion by the hypophysis and Low ADH reduces t

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

What is the emperical evaluation, What is the Emperical evaluation Emp...

What is the Emperical evaluation Emperical evaluation based on: i) Time elapsed since stage one surgery - Considering the sigma cycle of bone formation in humans, a time pe

Role of glucose in metabolism, ROL E OF GLUCOSE - Maximum part of ener...

ROL E OF GLUCOSE - Maximum part of energy in percentage is obtained by oxidation of glucose. Energy is released quickly. In blood .1% glucose (C6H12O6) present. Norma

Difference between rods and cones, Difference between rods and cones - ...

Difference between rods and cones - Rods Cones   1. More in number 1150 lakh   2. Outer seg. is cylindrical and contains

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