Post Utme Biology Past Questions and Answers

Question 686:

Abscisic acid is a chemical that prepares plants for ____________

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

Question 687:

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

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

Question 688:

In Mosses, the sporophyte generation is highly prominent producing spores in a cone lite ____________

A. Gametophyte
B. Strobilus
C. Antheridium
D. Archegonium

Question 689:

When osmotic acid is boiled with a solution of food substances, it gave a colour black precipitate showing the presence of ____________

A. Fats and oil
B. Proteins
C. Amino acids
D. Starch

Question 690:

Plants adapted to life in salty march are known as ____________

A. Hydrophytes
B. Xerophytes
C. Halophytes
D. Epiphytes