15473.The distinguishing character of imparipinnate leaf is that
Leaflets are large
Rachis is terminated by an unpaired odd leaflet
Rachis is strong
All leaflets are borne in pairs
15475.Which one of the following statements is correct?
Flower of tulip is a modified shoot
In tomato, fruit is a capsule
Seeds of orchids have oil-rich endosperms
Placentation in primose is basal
15476.The adventitious root which arises from the stem, penetrates into the soil, and helps support the stem is called
Prop root
Stilt root
Climbing root
Clinging root
15477.The fruit is chambered, developed from inferior ovary and has seeds with succulent testa in:
Cucumber
Pomegranate
Orange
Guava
15479.The part of root which grows in length
Root cap
Zone of elongation
Meristematic zone
Zone of maturation
15480.Identify a pair of the following plants which show modification of axillary buds into tendrils and hooks respectively:
I. Hugonia
II. Duranta
III. Passiflora
IV. Dioscorea
The correct pair is:I, II
II, III
III, I
IV, I
15481.The rhizome differs from stem due to
Thickness
Thinness
Buds in the axils of scale leaves
Their green color
15486.Assertion (A): The type of inflorescence in Sphaeranthus is cyathium.
Reason (R): In cyathium type of inflorescence, the flowers are achlamydeous.
The correct answer isBoth Assertion and Reason are true and Reason is the correct explanation of the Assertion.
Both Assertion and Reason are true but Reason is not the correct explanations of Assertion.
Assertion is true, but Reason is false.
Assertion is false, but Reason is true.
15487.Green leaf-like modified aerial stems/branches with a single internode are called
Bulbils
Cladodes
Phylloclades
Phyllodes
15490.In humid climate, function of spines in shrubs is
To defend against mammal herbivory
To defend against woodcutters
To reduce transpiration
To check seed predation by birds
15491.In longitudinal section of a root, starting from the tip upward, the four zones occur in the following order:
Cell division, cell maturation, cell enlargement, root cap
Root cap, cell division, cell enlargement, cell maturation
Root cap, cell division, cell maturation, cell enlargement
Cell division, cell enlargement, cell maturation, root cap
15492.In which of the following plants leaf apex is modified into tendril?
Gloriosa
Eichhornia
Nymphaea
Parkinsonia