Please select a subject first
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Apical dominance refers to ____________.
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Identify the correct set of pathogen and vector for transmission of malaria.
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Which of the following statement/s are INCORRECT with respect to crossing over?
i. Crossing over produces recombinations of genes by interchanging and exchanging corresponding segments between nonsister chromatids of homologous chromosomes.
ii. Crossing over occurs during zygotene of prophase I of meiosis.
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Coleoptile tips were removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly cut coleoptile stumps.
What is the significance of the above experiment performed by Dr. F. Went?
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Read the following statements and choose the correct option.
i. Symptoms of malaria begin to appear 7 to 15 days after the bite of an infective mosquito.
ii. Initial symptoms of malaria are fever, headache and chills.
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All the linked genes in a particular chromosome, constitute a ____________.
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Identify the INCORRECT match.
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In which part of plant does auxin synthesis occur?
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Flowering in pineapple is promoted by ____________.
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Analyze the following statements and select the correct option.
- Due to incomplete linkage, the parental traits are inherited in offsprings.
- Due to incomplete linkage, new traits occur in offsprings.
- X chromosome of Drosophila males show complete linkage.
- In Zea mays - colour and shape of grain show complete linkage
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Match the following lists and select the correct option.
| List I | List II | ||
| i. | 2,4-D | a. | Promotes senescence and ripening of fruits |
| ii. | ABA | b. | DelaysJeaf senescence |
| iii. | Gibberellins | c. | Increases the length of the sugarcane stem |
| iv. | Ethylene | d. | Kills dicotyledonous weeds without affecting mature monocotyledonous plants |
| e. | Stimulates the closure of stomata |
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Identify the site of formation of in the malarial life cycle.
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All are true for malaria, EXCEPT
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First cytokinin was discovered by Skoog and Miller while working on tissue culture of ____________ plant.
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Antidiuresis is the role of ______ hormone.
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Identify the CORRECT statement.
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____________ acts as a vector for transmission of Plasmodium vivax.
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Which among the following is the CORRECT statement regarding ethylene?
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Identify the infectious stage of Plasmodium.
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