If there is a history of haemophilia in the family, the chances of male members becoming haemophilic are more than that of the female.
(a) Why is it so ?
(b) Write the symptoms of the disease.

Explain the pattern oftinheritance of haemophilia in humans. Why is the possibility of a human female becoming haemophilic extremely rare ? Explain.

Expression of sex linked character like haemophilia is more prone in male than female . Why ?

Explain the pattern of inheritance of haemophilia in humans. Why is the possibility of a human female becoming a haemophilic is extremely rare ? Explain.

Haemophilia is more commonly seen in human males than in human females because

Why is haemophilia rare in human females ? Mention a clinical symptom for the disease.

Haemophilia is a sex-linked recessive disorder of humans. The given pedigree chart shows the inheritance of haemophilia in one family. Study the pattern of inheritance and answer the questions given. (a) Give all the possible genotypes of the members 4, 5 and 6 in the pedigree chart. (b) A blood test shows that the individual 14 is a carrier of haemophilia. The member number 15 has recently married the member numbered 14. What is the probability that their first child will be a haemophilic male?

Haemophilia is a sex linked recessive disorder of humans. The pedigree chart given below shows the inheritance of Haemophilia in one family. Study the pattern of inheritance and answer the questions given. (a) Give all the possible genotypes of the members 4, 5 and 6 in the pedigree chart. (b) A blood test shows that the individual 14 is a carrier of gaemophilia. The member numbered 15 has recently married the member numbered 14. What is the probability that their first child will be a haemophilic male ? Show with the help of Punnett square.

Why is haemophilia generally observed in human males ? Explain the conditions under which a human female can be haemophilic. (b) Draw the male Reproductive system.

Haemophilia is a sex linked recessive disorder of humans. The pedigree chart given below shows the inheritance of haemophilia in one family. Study the pattern of inheritance and answer the questions given Give all the possible genotypes of the members 4,5 and 6 in the pedigree chart. (b) A blood test shows that the individual 14 is a carrier of haemophilia. The member numbered 15 has recently married the member numbered 14. What is the probability that their first child will be a haemophilic male? Show with the help of Punnett square.

mark the true and false statements a. SAN generates as action potential which stimulates atrial systole. b. ECG is an electrical representation of the graphical activity of the heart during a cardiac cycle. c. The cardiac output of a normal man will be much lesser than an athlete. d. The wall of right ventricle is much thicker than the left ventricle e. In pisces the two separate circulatory pathways are present, hence they have double circulation. f. The clsoed circulatory pattern is considered to be more advantageous than open circulatory pattern. g. Glucose is absorbed by simple diffusion through lymph in lacteales present in the intestinal villi. h. The SAN can generate the maximum number of action potential i.e. 140-150 mi n^(-1) in neonates, and is responsible for initiation and maintenance of the rhythmic contractile activity of the heart. i. Angina can occur in any age but more common among the neonates and infants. j. heart failure is sometimes called congestive heart failure because congestion of the blood vessels is one of the main symptoms of this disease.