Description : Which part would be most suitable for raising virus-free plants for micropropagation ? (a) Bark (b) Vascular tissue (c) Meristem (d) Node
Last Answer : (c) Meristem
Description : To obtain virus - free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken? (a) Apical meristem only (b) Palisade parenchyma (c) Both apical and axillary meristems (d) Epidermis only
Last Answer : (c) Both apical and axillary meristems
Description : In order to obtain virus-free plants through tissue culture the best method is (a) meristem culture (b) protoplast culture (c) embryo rescue (d) anther culture.
Last Answer : (a) meristem culture
Description : Which one of the following is a case of wrong matching? (a) Somatic – Fusion of two hybridization diverse cells (b) Vector DNA – Site for tRNA synthesis (c) Micropropagation – In vitro production of plants in large numbers (d) Callus – Unorganised mass of cells produced in tissue culture
Last Answer : (b) Vector DNA – Site for tRNA synthesis
Description : 9. Which one of the following is a case of wrong matching ? (1) Callus - Unorganised mass of cells produced in tissue culture (2) Somatic hybridization - Fusion of two diverse cells (3) Vector DNA - Site for t-RNA synthesis (4) Micropropagation - In vitro production of plants in large number
Last Answer : Vector DNA - Site for t-RNA synthesis
Description : What vascular tissue forms bark? -Biology
Last Answer : The inner soft bark, or bast, is produced by the vascular cambium; it consists of secondary phloem tissue whose innermost layer conveys food from the leaves to the rest of the plant. The outer bark, which is mostly dead tissue, is the product of the cork cambium
Description : The technique of obtaining large number of plantlets by tissue culture method is called (a) plantlet culture (b) organ culture (c) micropropagation (d) macropropagation.
Last Answer : (c) micropropagation
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 : Cork cambium and vascular cambium are (a) parts of secondary xylem and phloem (b) parts of pericycle (c) lateral meristem (d) apical meristem.
Last Answer : (c) lateral meristem
Last Answer : c) lateral meristem
Description : Advantage of producing plants by micropropagation. -Biology
Last Answer : answer:
Description : A narrow layer of thin walled cells found between phloem/bark and wood of a dicot is (a) cork cambium (b) vascular cambium (c) endodermis (d) pericycle.
Last Answer : (b) vascular cambium
Description : Tissue culture technique can produce infinite number of new plants from a small parental tissue. The economic importance of the technique is in raising (a) genetically uniform population ... homozygous diploid plants (c) new species (d) variants through picking up somaclonal variations.
Last Answer : (a) genetically uniform population identical to the original parent
Description : What is meristem tissue? -Science
Description : Meristematic tissue responsible for increase in girth of tree trunk is (a) intercalary meristem (b) lateral meristem (c) phellogen (d) apical meristem.
Last Answer : (b) lateral meristem
Description : Which tissue is responsible for the length of the plant? (a) Apical meristem (b) lateral meristem (c) Intercalary meristem (d) Epidermis
Last Answer : (a) Apical meristem
Description : Vascular tissue in plants consists of? -Biology
Last Answer : Vascular tissue is comprised of the xylem and the phloem, the main transport systems of plants. They typically occur together in vascular bundles in all plant organs, traversing roots, stems, and ... responsible for the transport of water and dissolved ions from the roots upwards through the plant.
Description : Where is vascular tissue found in plants? -Biology
Last Answer : Vascular Tissues. Vascular tissue is comprised of the xylem and the phloem, the main transport systems of plants. They typically occur together in vascular bundles in all plant organs, traversing roots, stems, and leaves.
Description : In which of the following would you place the plants having vascular tissue lacking seeds? (a) Pteridophytes (b) Gymnosperms (c) Algae (d) Bryophytes
Last Answer : (a) Pteridophytes
Description : Why vascular tissue is considered a distinctive feature responsible for survival of plants in terrestrial plants?
Last Answer : Fossils of plants show that vascular tissue appear 400 million years ago. It is believed that aquatic plants moved to terrestrial environment and adaptations like vascular tissue, protected seeds, true roots ... root, stem and leaves. It also enable plant to grow upright i.e. become taller.
Description : Liverworts and mosses are characterized by their lack of vascular conducting tissue. These two groups of plants, liverwort and mosses, are known by which of the following terms: a) thallophytes (pron: THAL-o-fights) ... (pron: JIM-na-sperms) c) bryophytes (pron: BRIE-o-fights) d) none of the above
Last Answer : ANSWER: C -- BRYOPHYTES
Description : In which part of root is vascular tissue found?
Last Answer : the inner layer ---> novanet
Description : The transverse section of a plant shows following anatomical features : (i) Large number of scattered vascular bundles surrounded by bundle sheath (ii) Large conspicuous parenchymatous ground ... (a) Monocotyledonous stem (b) Monocotyledonous root (c) Dicotyledonous stem (d) Dicotyledonous root
Last Answer : (a) Monocotyledonous stem
Description : Read the following four statements (A-D). (A) Colostrum is recommended for the new born because it is rich in antigens. (B) Chikungunya is caused by a Gram negative bacterium. (C) Tissue culture has proved useful ... . How many of the above statements are wrong? (a) Two (b) Three (c) Four (d) One
Last Answer : (B) Chikungunya is caused by a Gram negative bacterium.
Description : A clone is a group of individuals obtained through – (1) Hybridisation (2) Micropropagation (3) Cross pollination (4) Self pollination
Last Answer : (2) Micropropagation Explanation: Micropropagation is the practice of rapidly multiplying stock plant material to produce a large number of progeny plants, using modern plant tissue cultore ... to accelerated growth compared to similar plants produced by conventional methods - like cuttings.
Description : Breeding of crops with high levels of minerals, vitamins and proteins is called (a) somatic hybridisation (b) biofortification (c) biomagnification (d) micropropagation.
Last Answer : (b) biofortification
Description : 2. RNA interference helps in a. Cell proliferation b. Micropropagation c. Cell defence d. Cell differentiation
Last Answer : Ans: Cell –defence.
Description : A clone is a group of individuals obtained through (1) Hybridisation (2) Micropropagation (3) Cross pollination (4) Self pollination
Last Answer : Micropropagation
Description : In a plant, the layer of persistently meristematic tissue, giving rise to secondary tissues, resulting in growth in diameter is which of the following? a) bark b) cambium c) capsule
Last Answer : ANSWER: B -- CAMBIUM
Description : Frozen tissue section of a lymph node biopsy from the neck of an old dog shows granulomatous inflammation with large areas of necrosis. Which one would be most important to do? C A. cell surface markers for lymphocyte identification B. chromosomal analysis by karyotyping
Last Answer : cultures for acid fast bacilli and fungi
Description : Which of the following terms is used to describe removal of the breast tissue and an axillary lymph node dissection leaving muscular structure intact as surgical treatment of breast cancer? a) ... the pectoralis major and minor muscles in addition to breast tissue and axillary lymph node dissection.
Last Answer : a) Modified radical mastectomy A modified radical mastectomy leaves the pectoralis major and minor muscles intact.
Description : A viruses free plant can be obtained from — propagation. a. Leaf b. Stem c. Root d. Meristem culture
Last Answer : d. Meristem culture
Description : Where is primary vascular tissue made? -Biology
Description : Define primary vascular tissue. -Biology
Description : What is vascular tissue? -Biology
Last Answer : Vascular tissue transports water, minerals, and sugars to different parts of the plant. Vascular tissue is made of two specialized conducting tissues: xylem and phloem. Xylem tissue transports water and ... different parts of the plant, and also plays a role in structural support in the stem.
Description : What is the function of vascular tissue? -Biology
Last Answer : The vascular tissues of plants, which are composed of specialized conducting tissues, xylem and phloem, form continuous systems through the plant body and provide transport pathways for water, nutrients, and signaling molecules and support a plant body against mechanical stresses.
Description : What are the two types of vascular tissue in plant? -Biology
Description : Why is xylem considered a vascular tissue? -Biology
Description : Why is vascular tissue important? -Biology
Description : What vascular tissue transports sugar? -Biology
Description : What vascular tissue transports water? -Biology
Description : When did vascular tissue evolve? -Biology
Description : Vascular tissue differentiation. -Biology
Last Answer : Vascular tissues are differentiated from meristematic cells: procambial cells during primary growth and vascular cambium cells during secondary growth. Procambial cells in roots and stems are derived from ... . Procambial cells in leaves are formed during very early stages of leaf development.
Description : Where is vascular tissue located in a plant? -Biology
Description : If radioisotopes of minerals are supplied to soil then which vascular tissue helps to translocate then in plant body?
Last Answer : If radioisotopes of minerals are supplied to soil then which vascular tissue helps to translocate then in plant body?
Description : The symptoms of allergen-mediated asthma result from which of the following? (a) Increased release of mediators from mast cells (b) Increased adrenergic responsiveness of the airways (c) ... bronchial tissue (d) Decreased calcium influx into the mast cell (e) Decreased prostaglandin production
Last Answer : Ans: A
Description : The Symptoms of allergen-mediated asthma result from which of the following? (a) Increased release of mediators from mast cells (b) Increased adrenergic responsiveness of the airways (c) ... bronchial tissue (d) Decreased calcium influx into the mast cells (e) Decreased prostaglandin production