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!
Hybrid sterility can be regarded as yet another form of interspecific sterility. The offspring of the interspecific crosses are mainly sterile. Geological studies have shown that the chromosomes of the hybrid individuals fail to synapse at the time of meiosis and thus result in either non-production of gametes or defective gametes. Unless the chromosomes of parents are accurately separated which might result in viable gametes,, in most cases the gametes are not produced and if produced they may not be fertile. The commonly cited example is the mule, a sterile animal the product of a cross between a donkey and a horse. Further, the hybrid species in general are found to have grossly abnormal reproductive system. If normal reproductive system is present, then meiosis is abnormal and non-viable gametes are produced. Thus various types of reproductive isolating mechanisms are at work in different groups of organisms to maintain the distinctness and uniqueness of species.
What is the type of genetic inheritance of daltonism? Is daltonism more frequent in men or in women? What is the physiological explanation for the daltonism? Daltonism is a re
In one study of a heavily polluted area near Birmingham, England, a researcher observed a frequency of 87% melanic Biston betlularia. Calculate the frequency of the dominant allele
Q. Whcih group of individual animals and plants called Species? A group of individual plants and animals that are fundamentally alike is treated as a ,species. Species is a par
Why is drosophila a convenient animal for the study of linked genes? The fruit fly drosophila is suitable for the study of Genetics because it shows many distinct traits but on
Water Stress - Responses of Plants to Stress Water stress in a plant can result from drought, excess salinity in the soil and very low or high temperatures. It has been found
Explain Post Myocardial Infarction Surgery Indications ? Indications for Surgery : Presence of ventricular septal rupture is an indication for surgery. Timing of surgery is
Conjugation - Patterns of Sexual Reproduction Conjugation is a temporary union among two individuals of the same species, during which the original macronucleus disintegrates,
Explain about Urinary system Urinary system provides us with the service of disposing the waste products carried by blood. This function is also known as excretion.
How Age factors Affecting the calcium absorption? Age is another factor which influences the absorption of calcium. Fractional absorption of calcium is highest in infancy i.e.,
Emerging and New Generation By-Products Oil palm by-products are good examples of NCFR which are becoming increasingly important new feeds. This is associated with the rapidly
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