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!
Sex-Limited Traits
Sex Limited Traits are traits expressed only in one sex, although the genes controlling thcm arc prcscnt as wcll as transmitted to both thc sexes. Therefore, males and femalcs with thc bamc genotype, with rcspcct to a particular locus may have different phenotypes.
Sex-Limited Traits arc determined by autosomal genes, whose phenotypic expression is determined by the presence or absence of one of the sex hormones. Since sex hormones are the limiting factors, rhc phenotypic expression of these genes is limited to onc sex or the other. The most obvious exanlples are the secondary sex characteristics. Beard development in human beings is one such sex-limited character as men have beards, and woman normally do not. Yet studies indicate no significant differences between thc sexes in number of hairs per unit area of skin surface except in their development. This appears to clepend on sex hornlone production. Any disturbance in these hol-rnones in women rnay result in the development of beard. Similarly, the full development of breasts in females, and presencc of prostate glands in males are thc examples of sex-limited traits seen in human beings. Traits like egg laying in chickens, oviposition behaviour in insects are somc other such examples. Milk production in mammals is limited to females, but certain bulls are in great demand among dairy breeders and artificial inscinination associations because their mothers and daughters have incresed milk production records.
Phosphorus deficiency Deficiency of phosphorus is usually primary and is widespread under natural conditions. It is characterized by pica, poor growth, infertility, and osteody
what are the two main classes into which fish are divided
Transmission electron microscopy: Around 1931-32 two German scientists. Knoll and Ruska. Invented transmission electron microscopy, and built the first transmission electron m
What is the function of the secretions of the prostate, seminal vesicle and bulbourethral glands in reproduction? These secretions with sperm cells from the testicles form the
What is Lymphatic Network? The lymphatic network consists of the lymphatic vessels, which circulate lymph throughout the body. Lymph is a liquid which carries out exchange of g
Explain Strengthening the public health measures? Parasitic infestations and protozoal infections cause iron deficiency through loss of blood or destruction of red blood cells.
Q. Pathology of aortic regurgitation? In Post Inflammatory situations scarring and retraction of valve cusps lead to aortic regurgitation. Varying degrees of commissural fusion
Alteration of Turgor of Guard Cells There are two ways in which the relative turgor of guard cells may be altered. A decrease in osmotic potential or A decre
ORGANIZATION CHART: Organization chart is one of the visual which helps any visitor to get an understanding of an organization at a glance. Meaning of Organization Chart
Reducing Cost of Accident One clear way to control the cost of accident would be to follow all the rules of book for safety. All the methods of safety which were described ear
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