Description : Virus free plants can be obtained by
Last Answer : Virus free plants can be obtained by A. Antiobiotic treatment B. Bordeaux mixture C. Root tip culture D. Shoot tip culture
Description : The antibiotic penicillin is obtained from which of the following? (1) synthetic process (2) a bacterium (3) fungus (4) virus infected cells
Last Answer : (3) fungus Explanation: Penicillins are a group of antibiotics used to treat a large range of bacterial infections. They are derived from Penicillium fungi and can be taken orally or via injection. Penicillin was discovered in 1928 by Scottish scientist Alexander Fleming.
Description : Which statement is correct for bacterial transduction? (a) Transfer of some genes from one bacteria to another bacteria through virus. (b) Transfer of genes from one bacteria to another bacteria ... its DNA directly from mother cell. (d) Bacteria obtained DNA from other external source.
Last Answer : (a) Transfer of some genes from one bacteria to another bacteria through virus.
Last Answer : (a) Transfer of some genes from one bacteria to another bacteria through virus
Description : The antibiotic penicillin is obtained from which of the following ? (1) synthetic process (2) a bacterium (3) fungus (4) virus infected cells
Last Answer : fungus
Description : Which part of the plant is best suited for making virus-free plants and why? -Biology
Last Answer : answer:
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 : 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 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 : Micro grafting is used to produce —- free plants a. Virus b. MLO c. Fungi d. Bacteria
Last Answer : a. Virus
Description : Which part would be most suitable for raising virus-free plants for micropropagation ? (1) Node (2) Bark (3) Vascular tissue (4) Meristem
Last Answer : (4) Meristem
Description : 7. Viral disease free plants obtained through : a) anther culture b) shoot meristem culture c) Ovary culture d) leaf cell culture
Last Answer : b) shoot meristem culture
Description : 1. Viral disease-free plants are obtained through (a) anther culture. (b) shoot meristem culture. (c) ovary culture. (d) leaf-cell culture
Last Answer : (b) shoot meristem culture.