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Home⇒ Medical Science⇒ Biotechnology⇒ Plant cell culture
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q1 ⇒ Which of the following is considered as the disadvantage of conventional plant tissue culture for clonal propagation? Storage and transportation of propogates [other wrong options] [Discuss in forum] Multiplication of sexually derived sterile hybrids Less multiplication of disease free plants Both (b) and (c) |
Q2 ⇒ Cell fusion method includes the preparation of large number of single plant cell stripped of their cell wall [other wrong options] [Discuss in forum] plant cells stripped of their cell wall plant cells with cell wall cells from different species |
Q3 ⇒ Which of the following is used in the culture of regenerating protoplasts, single cells or very dilute cell suspensions? Both (a) and (b) [other wrong options] [Discuss in forum] Nurse medium Nurse or feeder culture None of these |
Q4 ⇒ When plated only in nutrient medium, how much time is required for the protoplast to synthesize new cell wall? 5-10 days [other wrong options] [Discuss in forum] 2-5 days 10-15 days 15-17 days |
Q5 ⇒ Which method of plant propagation involves the use of girdling? Layering [other wrong options] [Discuss in forum] Grafting Cuttings Micropropagation |
Q6 ⇒ The ability of the component cells of callus to form a whole plant is known as redifferentiation [other wrong options] [Discuss in forum] dedifferentiation either (a) or (b) none of these |
Q7 ⇒ Protoplasts can be produced from suspension cultures, callus tissues or intact tissues by enzymatic treatment with both cellulotyic and pectolytic enzymes [other wrong options] [Discuss in forum] cellulotyic enzymes pectolytic enzymes proteolytic enzymes |
Q8 ⇒ The phenomenon of the reversion of mature cells to the meristematic state leading to the formation of callus is known as dedifferentiation [other wrong options] [Discuss in forum] redifferentiation either (a) or (b) none of these |
Q9 ⇒ Protoplasts are the cells devoid of cell wall [other wrong options] [Discuss in forum] cell membrane both cell wall and cell membrane none of these |
Q10 ⇒ Agrobacterium based gene transfer is efficient only with dicots [other wrong options] [Discuss in forum] only with monocots with both monocots and dicots with majority monocots and few dicots |
Q11 ⇒ Organogenesis is formation of root and shoots on callus tissue [other wrong options] [Discuss in forum] formation of callus tissue both (a) and (b) genesis of organs |
Q12 ⇒ What is/are the benefit(s) of micropropagation or clonal propagation? All of the above [other wrong options] [Discuss in forum] Rapid multiplication of superior clones Multiplication of disease free plants Multiplication of sexually derived sterile hybrids |
Q13 ⇒ What is meant by 'Organ culture' ? Maintenance alive of a whole organ, after removal from the organism by partial immersion in a nutrient fluid [other wrong options] [Discuss in forum] Introduction of a new organ in an animal body with a view to create genetic mutation in the progenies of that animal Cultivation of organs in a laboratory through the synthesis of tissues The aspects of culture in community which are mainly dedicated by the need of a specified organ of the human body |
Q14 ⇒ A(n) __________ is an excised piece of leaf or stem tissue used in micropropagation. extant [other wrong options] [Discuss in forum] microshoot medium scion |
Q15 ⇒ Subculturing is similar to propagation by cuttings because it separates multiple microshoots and places them in a medium [other wrong options] [Discuss in forum] it uses scions to produce new microshoots they both use in vitro growing conditions all of the above |
Q16 ⇒ Which breeding method uses a chemical to strip the cell wall of plant cells of two sexually incompatible species? Protoplast fusion [other wrong options] [Discuss in forum] Mass selection Transformation Transpiration |
Q17 ⇒ In a callus culture increasing level of cytokinin to a callus induces shoot formation and increasing level of auxin promote root formation [other wrong options] [Discuss in forum] increasing level of auxin to a callus induces shoot formation and increasing level of cytokinin promote root formation auxins and cytokinins are not required only auxin is required for root and shoot formation |
Q18 ⇒ Cellular totipotency is the property of plants [other wrong options] [Discuss in forum] animals bacteria all of these |