1561. The arrangement of unequal dichotomies in one plane during evolution of leaf is :
A. Plantation *
B. Overtopping
C. Webbing
D. All these
1562. One of the following families ranks third in commercial importance in the temperate zone among the families of following plants:
A. Solana cease
B. Fabaceae
C. Rosacea *
D. Germaine
1563. The branches of which of the following plant provide excellent walking sticks and wood :
A. Rosa Indicia
B. Crataegus *
C. Frag aria
D. Pyros pastia
1564. one of the following is called seeded plants :
A. Angiosperms *
B. Pteridophytes
C. Bryophytes
D. Algae
1565. Which structure in the life cycle of an angiosperm is triploid ?
A. Male gametophyte
B. Female gametophyte
C. Endosperm *
D. Embryo
1566. Stamens contain pollen sacs in which microspores are produced by :
A. Amitosis
B. Mitosis
C. Binary fission
D. Meiosis *
1567. Which group of plants exhibits maximum diversity ?
A. Bryophytes
B. Pteridophytes
C. Gymnosperm
D. Angiosperm *
1568. One of the following is favorite home garden vegetable once considered to be poisonous :
A. Potato
B. Red pepper
C. Brinjal
D. Tomato *
1569. The source of daturine , an alkaloid used medicinally is :
A. Atropa belladonna
B. Datura alba *
C. Petunia alba
D. Nicotiana tabaccum
1570. The plants in which petals are five or multiple of 5s that are free and rosaceous belong to the family :
A. Solanaceae
B. Fabaceae
C. Rosacea *
D. Mimosaceae