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!
Sympatric speciation can be regarded as speciation where parent species gives rise to a daughter species without the individuals of a species being separated by space or territory. Both instantaneous and gradual models of sympatric speciation have been proposed. Barring one mode of instantaneous speciation by a mechanism known as polyploidy, other modes of sympatric speciation have remained quite controversial. Polyploidy is quite common among plants. (For a detailed discussion on polyploidy refer to Unit 10 of Block 2 of LSE-03 of Genetics course). A cross between two diploid plants could result in a tetraploid hybrid. The hybrid would remain largely reproductively isolated from its diploid parents. The reason for such isolation is that due to back-crossing if a triploid individual were to be formed, it will produce a high proportion of nonviable gametes. There is also a possibility that interbreeding between deploid and tetraploid forms or between different tetraploids may give rise to other polyploids.
Q. What are the six criteria used to build a complete evolutionary branch of vertebrates? Dichotomy in each of the six following criteria builds the vertebrate evolutionary bra
PARATHYROID DISORDERS - (i) Hypoparathyroidism (deficiency of PTH) . It causes the lowering of blood calcium level. This increases the excitability of nerves and muscles, caus
When coal is heated strongly in absence of air, it forms a strong, porous, dense and coherent mass known as coke. This process of conversion of coal into coke is called carbonzatio
What are the names and uses of the various laboratory tools? Tools are beakers, microscopes, tweezers, hot plates, lasers, test tubes, voltmeters, Erlenmeyer flasks, thermomete
PHOSPHOLIPIDS Most abundant lipid present in cell membrane, also called membrane lipid. It is made up of lipid & phosphoric acid. The basic phospholipid is phosphat
what are he characteristic of phylum collenterata?
Define Requirements of Carbohydrates during Surgery? Carbohydrates: Carbohydrates are needed to build up glycogen stores and spare the proteins for tissue synthesis, Around GO%
Vegetative Development - Development The process of growth and differentiation of cells into organs and organisms is often termed development. For example, the development of
Q. What is the name given to conditions in which the own immune system of the individual is the agent of diseases? What are some examples of these conditions? Diseases caused b
WHY CORALS MAY SOMETIME BE CONFUSED WITH PLANT
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: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd