The coconut water from tender coconut represents

• fleshy mesocarp

• free-nuclear proembryo

• free-nuclear endosperm

• free-nuclear endosperm

Whic of the following statements is not correct?

• Insects that consume pollen or nectar without bringing about pollination are called pollen nectar robbers

• Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of the pistil

• Some reptiles have also been reported as pollinators in some plant species

• Some reptiles have also been reported as pollinators in some plant species

Seed formation without fertilisation in flowering plants involves the process of

• budding

• Somatic hybridisation

• Apomixis

• Apomixis

Megasporangium is equivalent to

• embryo sac

• fruit

• nucellus

• nucellus

Read the following statements (IV) and answer the question which follows them
I. In liverworts, mosses and ferns gametophytes are free living.
II) Gymnosperms and some ferns are heterospores.
III) Sexual reproduction in Fucus, Volvox and Albugo is oogamous.
IV) The sporophyte in liverworts is more elaborate than that in mosses.

How many of the above statements  are correct?

• One

• Two

• Three

• Three

Which one of the following statement is correct?

• Hard outer layer of pollen is called intine

• Sporogenous tissue is haploid

• Endothecium produces the microspores

• Endothecium produces the microspores

Product of sexual reproduction generally generates

• longer viability of seeds

• prolonged dormancy

• new genetic combination leading to variation

• new genetic combination leading to variation

Advantage of cleistogamy is 

• higher genetic variability

• more vigorous offspring

• no dependence on pollinators

• no dependence on pollinators

Perisperm differs from endosperms in 

• being a haploid  tissue

• having no reserve food

• being a diploid tissue

• being a diploid tissue

120.

Which one of the following is not the function of the placenta? It

• facilitates the supply of oxygen and nutrients to the embryo

• secretes oestrogen

• facilitates removal of carbon dioxide and waste material from embryo

• facilitates removal of carbon dioxide and waste material from embryo