Sunday, 13 December 2015

Tricky Genetics Objective Type Questions And Answers

26- Autosomal dominant conditions include
1) Beta-thalassaemia
2) Cystic fibrosis
3) Marfan syndrome
4) Wilson's disease
5) Xeroderma Pigmentosa
All the others are autosomal recessive of course.

27- A 19-year-old woman is found to have a cardiac murmur characterized by a mid-systolic click. An echocardiogram reveals mitral insufficiency with upward displacement of one leaflet. There is also aortic root dilation to 4 cm. She has a dislocated right ocular crystalline lens. She dies suddenly and unexpectedly. The medical examiner finds a prolapsed mitral valve with elongation, thinning, and rupture of chordae tendineae. A mutation involving which of the following genes is most likely have be present in this patient?
1) Beta-myosin
4) Fibrillin
5) Spectrin

28- A Plasmid is best described as
1) a recombinant section of DNA
2) a small viral particle
3) bacterial DNA separate from the chromosome
4) consist of multiple copies of a single gene
5) having multiple origins of replication

29- A 59 year old woman has had insulin dependent diabetes mellitus for over two decades. The degree of control of her disease is characterized by the laboratory finding of a HbA1c of 10.1%. She complains of repeated episodes of abdominal pain following meals. These episodes have become more frequent and last for longer periods over the last couple of months. On physical examination, there are no abdominal masses and no organomegaly of the abdomen, and she has no tenderness to palpation. Which of the following findings is most likely to be present:
1) Ruptured aortic aneurysm
2) Hepatic infarction
3) Mesenteric artery occlusion
4) Acute pancreatitis
5) Chronic renal failure

30- A 51-year-old healthy man is found to have bilateral breast enlargement. He says that this is normal for him and that he has not noted any change in years. Which of the following is most likely to be present?
1) 47, XXY karyotype
2) History of antidepressant drug therapy
3) Increased risk for breast carcinoma
4) Increased testosterone levels
5) Seminoma of the testis

More Questions & Answers:-
Page1 Page2 Page3 Page4 Page5 Page6 Page7 Page8 Page9 

No comments:

Post a Comment