A) Ginkgo
B) Ephedra
C) Cupressus
D) Tsuga
Correct Answer: A
Solution :
Ginkgo shows resemblance with both Cycadales and Coniferales. Resemblances between Ginkgo and Cycadales are well-developed nucellar beak and pollen chamber, haustorial nature of pollen tube, multiflagellated spermatozoids, large egg massive female gametophyte with well-developed venter, endoscopic embryo with two cotyledons, hypogeal seed germination. Resemblance with Coniferales are cone like appearance, long and dwarf shoots, pycnoxylic wood, uniseriate medullary rays, longitudinal dehiscence of microsporangia and sessile ovule, etc.
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