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.
pisces kingdom
Explain Theory of Evolution through Natural Selection The third theory of evolution through natural selection was put forward jointly by Darwin, and Wallace in 1859. This theor
Q. What is the deplasmolysis of plant cells? The plant cell when placed under hypertonic medium loses a great quantity of water and its cell membrane detaches from the cell wal
Q. Show Non-Modifiable Risk Factors for cardiovascular disease? Age: Earlier men less than 55 years were more prone but now heart disease has caught up with a younger age-gro
Q. How is the yolk sac formed? What is the function of the yolk sac? The yolk sac is formed from the covering of the vitellus by few cells originated from the primitive gut.
What are the main bryophyte groups? The main bryophyte groups are the mosses, the liverworts and the hornworts. Image Diversity: mosses liverworts hornworts
Assessment of new born The main purposes are: i) To identify normal characteristics in the neonate ii) To identify existing abnormalities, ii any iii) To carry
Bovine ephemeral fever Ephemeral fever is commonly known as 'three-day sickness'. It affects mainly cattle and occasionally sheep in India. Causative agent is a mosquito-borne vir
What are hexoses? What are some examples of hexoses with important biological functions? Hexoses are carbohydrates made of six carbons. Glucose, fructose and galactose are inst
Explain the Chemical Properties of Monosaccharides? As you already know the chemical properties of monosaccharides depend on the presence of the hydroxyl the aldehyde or the ke
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