Post Utme Biology Past Questions and Answers

Question 246:

Even though some flowering plants contain accessory pigments which give them colours, they still contain the pigment ____________

A. Melanin
B. Chlorophyll
C. Xanthophylls
D. Earotene

Question 247:

In a water cultured experiment, a plant showed poor growth and yellowing of the leaves.
These syimptoms were probably due to the absence of ____________

A. Calcium
B. Phosphorus
C. Iron
D. Zinc

Question 248:

Terrestrial organisms which are capable of maintaining their body temperatures constant within fairly close limits are referred to as ____________

A. Thermoclines
B. Eurytherms
С. poikilotherms
C. Homotherms

Question 249:

During blood transfusion, agglutination may occur as a result of the reaction between ____________

A. Similar antigens and antibodies
B. Two different antigens
C. Two different antibodies
D. Contrasting antigens and antibodies

Question 250:

Which of the following is not a constituent of DNA?

A. Phosphate
B. Cytosinec
C. Deoxyribose
D. Uracil