Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Problem of Potency of Blastema Cells
The local cells are accountable for regeneration. Now you could ask which of the blastema cells differentiated into which type of limb tissues? Do differentiated cells like muscles, cartilage etc., lose their specialised properties, proliferate and consequently re-differentiate solely in accordance along with their previous differentiated state that is into muscle, cartilage etc respectively? Or, do the dedifferentiated cells truly turns into pluripotent cells capable of forming a variety of differentiated cells. To serch answer scientists performed an experiment where the skeleton was removed from the limb segment of an adult newt. This was-done by extirpating the bone so that the limb was lastingly without a skeleton. Then the boneless segment was amputated. It was observed that the limb that regenerated also had its skeletal component. This clearly pointed out that skeletal elements can differentiate from a blastema which received no contribution from preexisting skeleton. Thus tissues, in particular skeletal ones, do not require to be formed by cells from their particular tissue counterparts in the stump.
Figure: Stump counterparts not - needed for regeneration of the distal parts of the limb skeleton. a: forelimb skeleton of a newt. b: the humerus is excised and then the limb is amputated through the upper arm. c: regeneration of distal parts, including skeleton, proceeds from the cut surface distally.
Leishmanias – Flagellates Species of the genus Leishmania are parasites of mammals including man. Leishmanias infections occur over wide regions of the world from Asia, the ne
Brain anatomical coordinate systems are the first potential point of confusion, as there are different ones due to the fact that research is conducted in different species where d
What are Flavonols and Flavones? These are the most widely distributed among the flavonoids. The most commonly occurring are Quercetin, Myricetin and Kaempferol. Quercetin is q
At 1:00AM, Neuron A is at rest with membrane potential equal to -70 millivolts; it is producing no action potentials. The threshold for an action potential in neuron A is -55 mill
Define the Fluidized Dryers? Fluidization occurs when a flow of fluid upwards through a bed of particles (ranging from fine powders to particulate foods such as diced carrots)
Infectious bursal disease (IBD) It is a highly contagious acute disease in young chicken up to 6 weeks of age causing high morbidity and low mortality. Bursa may atrophy at th
Plants of Estuary The plants of the estuary are of four basic types: Phytoplankton, Marginal marsh vegetation, Mud-flat algae and Epiphytic plants
What is Embryogenesis explain in detail? Embryogenesis in humans consists of the first eight weeks of development of the zygote. Embryogenesis in animals is generally divided i
Define Incision - Endodontic Surgery Incisions are accomplished by using one of four scalpel blades: No. 11, No. 12, No. 15, and No. 15-C Horizontal incision should be m
Aim: To prove that oxygen is evolved during photosynthesis. Apparatus: Beaker, funnel, test tube, water, Hydrilla plants. Procedure: Take a few pieces of Hydrilla plant. Keep a
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd