Sample Questions - PART 11

Q) At the organismal level Tay-Sach syndome is due to




1. Incomplete dominance

2. Codominance

3. Homozygous recessive allele

4. Homozygous dominant allele

5. Heterozygous recessive allele




Q) The ozygen binder in Hemocyanine is




1. Magnesium

2. Copper

3. Cobalt

4. Iron

5. Zinc




Q) What change in the dissociation curve of hemoglobin is produced when there is a decrease in pH in tissues




1. Curve shifts to right side

2. Curve shifts to left side

3. Line parallel to X- axis

4. Line parallel to Y-axis

5. None of the above




Q) There is a production of H+ inside the erythrocytes when the CO2 enters the erythrocyte




H2CO3 = HCO3- + H+




. The Bohr shift is not occuring in RBC as a result of this because




1. H+ is removed back to tissues

2. H+ is taken by hemoglobin

3. H+ is converted to H2O

4. H+ is liberated as Hydrogen gas

5. None of the above




Q) In humans most of the carbon dioxide produced is trasported to lungs as




1. CO2 dissolved in blood

2. CO2 attached to amino end of polypeptide chain of hemoglobin

3. HCO3- in plasma

4. H2CO3 in erythrocytes

5. None of the above




Q) Rate of oxgen consumption per gram of body mass of a mouse and an elephant suggests that




1. As animals increase in size the rate of consumption of oxygen per gram of body mass increases

2. As animals increase in size the rate of consumption of oxygen per gram of body mass decreases

3. Whatever be the size of animal the rate of consumption of oxygen per gram of body mass remains constant

4. None of the above




Q) The mouse color genes exhibits




1. Pleitropy

2. Epistasis

3. Codominance

4.Semidominace

5. None of the above