Post Utme Biology Past Questions and Answers

Question 76:

Increasing complexity due to multicellularity first appeared in this animal group ____________

A. Protozoa
B. Coelenterate
C. Sarcodina
D. Protista

Question 77:

In the angiosperms, the sieve tube members are living nonnucleated, but they are usually accompanied by ____________

A. Cork cambium
B. Phloem rays
C. Vascular cambium
D. Companion cells

Question 78:

Abscisic acid is a chemical that prepares plants for ____________

A. Ripening fruits
B. Emergence of seedlings
C. For leaf fall
D. Reproduction

Question 79:

The formula below represents \[
\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}
ightarrow 2 \mathrm{C}_{2} \mathrm{H}_{6} \mathrm{O}+2 \mathrm{CO}_{2}+\mathrm{ATP}
\]

A. Glycolysis
B. Fermentation
C. Photosynthesis
D. Respiration

Question 80:

In any population, any specific allele will mutate at one time or another, usually to a nonfunctional or harmful form. The proportion of gametes carrying new mutant alleles of a given locus is culled ____________

A. The mutation rate
B. The selection coefficient
C. The relative fitness
D. The lethal genotype