SPSC - Lecturer Botany 2021 Past Paper with Answers

Practice the SPSC - Lecturer Botany 2021 past paper with 99 solved MCQs, answers and topic coverage.

99 solved MCQs across 2 approved papers

What is meant by Horticulture?Answer: Study or practice of growing flowers, fruits, vegetables, and gardening The most common method of entry of pollen tube into the ovule is called _____?Answer: Porogamy Syngenesious stamens (fused anthers) is found in which family?Answer: Asteraceae Conditions necessary for germination of seed are _____?Answer: Moisture, O₂, and suitable temperature Maximum fixation of solar energy is done by _______?Answer: Green plants Radio carbon dating is used to find the age of _____?Answer: Fossils Synthesis of ATP in the chlorophyll by utilizing light energy is called _____?Answer: Photophosphorylation Stage in which plasma membrane starts separating from the cell wall is called _____?Answer: Plasmolysis The shape of the DNA molecule is ______?Answer: Double helix Name the test used to assess the genotype of F₁ individuals?Answer: Test cross Capacity of a pathogen to produce disease in plants depends upon _____?Answer: Both A and B Which is the fossil genus of Pteridophytic plants?Answer: All of these Most of the present-day atmospheric oxygen is thought to have been formed by the activity of ______?Answer: Blue-green algae Angiospermic seed is formed from the _____?Answer: Ovule In case of asexual reproduction, which type of variations do not exist in the progeny?Answer: Hereditary Wildlife management is necessary for the protection of ______?Answer: Forest animals Canal irrigation has increased the ______?Answer: Both A and B The plants produced by genetic engineering are called ______?Answer: Transgenic plants Ants are social insects because ______?Answer: They live in colonies Purple coloration on plant parts in tomato is due to the deficiency of which element?Answer: Phosphorus Colchicine inhibits which stage of mitosis?Answer: Spindle formation The functional unit of a gene responsible for the synthesis of one polypeptide is called ______?Answer: Cistron DNA molecule does not contain ______?Answer: Uracil Meiosis Prophase I has _____?Answer: Five subdivisions Which one is odd? Poaceae, Asteraceae, Capitulum headAnswer: Capitulum head Megaspore mother cell undergoes division which is a _____?Answer: Meiotic A strophiole is usually present in the seeds of the members of _____?Answer: Fabaceae Royal Botanic Garden, Kew(k) is present in ______?Answer: England A group of individuals having the same chromosome number is called _____?Answer: Karyotype Botanic Gardens have a collection of living plants for the purpose of ______?Answer: Both A and B