Biology GK Questions Quiz-53

1041.The plants, which grow under water stress conditions of deserts are : (1) Epiphytes (2) Xerophytes (3) Heliophytes (4) Sciophytes Answer: 1041.(2) The term xerophyte refers to a plant species that has evolved over time to adapt to dry regions like deserts. Xerophytes have adapted to be able to keep extremely large amounts of water for a long period of time. Without this capability, the plant would die, as the desert region itself does not provide enough water to sustain life. 1042.Coupling and repulsion are the two states of : (1) linkage  (2) chiasma (3) mutation  (4) crossing over Answer: 1042.(1) Genetic linkage is the tendency of genes that are located proximal to each other on a chromosome to be inherited together during meiosis. The figure below depicts the gamete composition for linked genes from coupling and repulsion crosses: 1043.Stamens are fused with each other by their anthers and also with the petals in : (1) Leguminosae (2) Liliaceae (3) Compositae (4) Euphorbiaceae Answer: 1043.(3) T…