Description : A change in genetic constitution, which arises suddenly and not to segregation and recombination of genes in sexual reproduction is called as: a. Hybridization b. Bud variation c. Mutation d. Non of them
Last Answer : Mutation
Description : The length of different internodes in a culm of sugarcane is variable because of (a) size of leaf lamina at the node below each internode (b) intercalary meristem (c) shoot apical meristem (d) position of axillary buds.
Last Answer : (b) intercalary meristem
Description : Small, hair like outgrowth at the base of leaf stalk is termed as: a. Bud b. Bract c. Stipule d. Ligule
Last Answer : Stipule
Description : Peduncle is a main axis of the a. leaf b. Flower c. Inflorescence d. Bud
Last Answer : Inflorescence
Description : The bud which develop into the axils of a leaf is a. Axillary buds b. Terminal buds c. Adventitious buds d. Naked buds
Last Answer : Axillary buds
Description : A slender trailing stem taking roots at the node is a. Runner b. Rhizome c. Tuber d. Bulbs
Last Answer : Runner
Description : A thread-like stem or leaf which clings to any support, is known as a. Climber b. Tendril c. Sucker d. Creeper
Last Answer : Tendril
Description : Annual bearing apples differentiate much greater proportion of their flowers on _______: a. Spurs b. Shoots c. Leaf axils d. Main stem
Last Answer : Shoots
Description : In plants auxin are mainly present in: a. Root tips b. Stem end c. Shoot tips d. Leaf margins
Last Answer : Shoot tips
Description : In studies of trees, when three or more leaves and buds occur at each node, leaf arrangement and bud arrangement are said to be: a) whorled b) opposite c) alternate d) varying
Last Answer : ANSWER: A -- WHORLED
Description : Many plants have two leaves directly across from each other at each node, and a bud in the axil of each leaf. Name the term use in plant studies to describe this leaf arrangement.
Last Answer : ANSWER: OPPOSITE
Description : In studies of trees, one finds just one leaf bud and one leaf at each node on a walnut twig. This arrangement of leaf bud and leaf is known as: a) alternate b) opposite c) whorled d) none of the above
Last Answer : ANSWER: A -- ALTERNATE
Description : Difference between node and internodes? -Biology
Last Answer : answer:
Description : Consider the following statements: 1. Propagation of a nerve impulse in a myelinated nerve fibre is different from that of unmyelinated fibre. 2. The impulse actually travels by leaping through the nodes of Ranvier in an unmyelinated fibre 3. ... incorrect? (a) 1, 2 (b) 1, 3, 4 (c) 2 only (d) 2, 3
Last Answer : Ans:(d)
Description : An inflorescence in which the pedicels of the flowers arises from the same points as called a. Umbel b. Spike c. Catkin d. Uninate
Last Answer : Umbel
Description : Which one of the following statements is not correct? (a) Offspring produced by the asexual reproduction are called clone. (b) Microscopic, motile, asexual reproductive structures are called zoospores. ( ... in the standing water, drains oxygen from water that leads to the death of fishes.
Last Answer : (c) In potato, banana and ginger, the plantlets arise from the internodes present in the modified stem.
Description : Ginger is a stem and not a root because (1) It stores food material (2) It grows horizontally in the soil (3) It has nodes and internodes (4) It lacks chlorophyll
Last Answer : (3) It has nodes and internodes Explanation: Ginger is a modified stem. A rhizome to be exact. A rhizome is a thick horizontally growing stem which usually stores food material. It has nodes ... elongation of the rhizome. Roots develop from the lower surface of the rhizome. Eg. Ginger, Turmeric.
Last Answer : It has nodes and internodes
Description : At fruit bud differentiation in mango, C/N ratio is _______: a. Low b. Medium c. High d. Very High
Last Answer : High
Description : Rate of bud development is ___________ upto winter season : a. Slow b. Rapid c. Medium d. Constant
Last Answer : Rapid
Description : The development of flower bud in tuberose is : a. Basipetal b. Exipetal c. Endopetal d. Acropetal
Last Answer : Acropetal
Description : The phase of fruit bud formation continues until _________: a. Anthesis b. Petal formation c. Pollination d. Differentiation
Last Answer : Anthesis
Description : Apical bud becomes ________ in mango at fruit bud differentiation : a. Flattened b. Rounded c. Dome shaped d. Elongated
Last Answer : Dome shaped
Description : Pruning in old fruit trees increases fruit bud formation by increasing ______: a. Carbohydrates b. New vegetative growth c. Hormonal contents d. Cell sap
Last Answer : New vegetative growth
Description : Addition of __________ hastens the time of fruit bud differentiation in fruit plants: a. Nitrites b. Nitrides c. Nitrates d. All of these
Last Answer : Nitrates
Description : At fruit bud differentiation, nitrogen contents are _____________: a. Low b. Medium` c. High d. Very high
Last Answer : Low
Description : Edible portion of cabbage is a. Terminal bud b. Leaves c. Leaves + inflorescence d. All of above
Last Answer : Leaves
Description : Edible part of cauliflower is : a. Flowers b. Flower bud c. Vegetative bud d. Inflorescence
Last Answer : Vegetative bud
Description : Completion of pollination and fertilization in unopened flower bud is termed as a. Chasmogamy b. Apogamy c. Cleistogamy d. Dichogamy
Last Answer : Cleistogamy
Description : Button in citrus fruit is: a. Calyx at base b. Calyx at apex c. a & b d. All of above
Last Answer : Calyx at base
Description : Factors involved in the formation of auxins are: a. Age of apex b. Light c. Zinc d. All of the above
Last Answer : All of the above
Description : A climbing plant with woody stem is called a. Vine b. Liana c. Hedge d. All of the above
Last Answer : Vine
Description : Bananas main portion which remains above the ground is called as: a. Stem b. Rhizome c. Pseudostem d. Crown
Last Answer : Pseudostem
Description : A self supporting vine type stem is called. a. Vine b. Shrub c. Herb d. Liana
Last Answer : Liana
Description : Special leaf which bears a flower or cluster of flowers in its axils is called a. Bracts b. Compound leaf c. Simple leaf d. Non of these
Last Answer : Bracts
Description : Edges of the leaf are called a. Margin b. Midrib c. Veins d. Petiole
Last Answer : Margin
Description : Date palm leaf is called: a. Simple leaf b. Long leaf c. Frond d. Pinna
Last Answer : Frond
Description : Two basic types of pruning are heading-back and thinning-out. Which of the following is true about these pruning methods? a. Thinning cuts leave behind a good portion of the stem and many axillary buds. ... leave no buds. d. Heading cuts remove a portion of the stem and only terminal buds are lef
Last Answer : Thinning cuts are made close to a main branch or ground and few axillary buds are left
Description : Pansy is very popular annual due to its: a. Stem and foliage beauty b. Hardiness toward ground cover c. Planting under shad. d. Mix colour flowers bedding plant.
Last Answer : Mix colour flowers bedding plant.
Description : Which of following trees has stem beauty? a. Eucalyptus b. Sterculia c. Royal palm d. All of above
Last Answer : All of above
Description : The example of above ground modified stem is a. stolons b. Corms c. Tuber d. Rhizome
Last Answer : stolons
Description : Banana plants are infected with: a. Banana bunchy top b. Anthracnose of stem c. Rhizome wilt d. None
Last Answer : Banana bunchy top
Description : Canary date differs from cultivated date in a. Length of fronds b. Arrangement of pinnus c. Thickness of stem d. Area of origin
Last Answer : Thickness of stem
Description : Vine mean climbing/trailing plants with a. Herbaceous stem b. Woody stem c. Both of these d. None of these
Last Answer : Herbaceous stem
Description : Sweet potato is propagated by: a. Stem cuttings b. Tubers c. Roots d. a & b
Last Answer : a & b
Description : An example of an organic material is __________. a. Pea gravel b. Perlite c. Leaf mold d. Vermiculite
Last Answer : Leaf mold
Description : The main commercial method for propagating African violets is by: a. Seeds b. Crowns c. Tubers d. Leaf petioles
Last Answer : Leaf petioles
Description : A leaf with parallel venation: a. Has leaflets b. Is a monocot c. Has crossing veins d. Is a compound leaf
Last Answer : Is a monocot
Description : In some plants the buds contain both leaves and flowers and known as a. Leaf buds b. Flower buds c. Scaly buds d. Mixed buds
Last Answer : Mixed buds