Trisomy 21 is most common in mothers of the ________ age group.

Related Mcqs:

1. If a man having blood group AB marries a woman who is heterozygous for blood group, what is the probability of their first child having blood group B?

   A. 40%
   B. 45%
   C. 50%
   D. 71%

   Submitted by: Rashid Mehmood

2. A bond formed by linkage between -OH of carboxyl group of one amino acid and H of amino group of another amino acid which releases water is called__________?

   A. Phosphodiester linkage
   B. Glycosidic bond
   C. Peptide bond
   D. Hydrogen bond

3. Which of the following statements about fractures in old age is incorrect?

   A. They are more common than in adult age.
   B. Occur as a result of bone being thin and weak.
   C. Due to good blood supply it results in quick healing.
   D. It involves osteoblasts and osteocytes.

4. Which structural organization is most common in globular proteins____________?

   A. Primary
   B. Secondary
   C. Tertiary
   D. Quaternary

5. The common waste material in bacteria is____________?

   A. Glycogen
   B. Lactic acid
   C. Ammonia
   D. Urea

6. __________ are believed to have common origin with annelids.

   A. Nematods
   B. Arthropods
   C. Molluscs
   D. None of these

7. Pin warm is common name used for__________?

   A. Rhabditis
   B. Enterobius vermicularis
   C. Ancylostoma duodenale
   D. Taenia solium

8. Respiratory distress syndrome is common especially for infants with a__________?

   A. Less than 7 month
   B. Less than 8 month
   C. Less than 9 month
   D. More than 9 month

9. Which of the following kidney stones are most common?

   A. Calcium oxalate
   B. Calcium phosphate
   C. Uric acid
   D. All of these

10. The respiratory problem most common in smokers is_________?

    A. tuberculosis
    B. emphysema
    C. asthma
    D. cancer

    Submitted by: Maryam Aftab