KHYBER PAKHTUNKHWA PUBLIC SERVICE COMMISSION
WRITTEN EXAMINATION FOR THE POSTS OF PMS OFFICER / AETO BPS-17
(2025)
BOTANY (PAPER-II)
Time Allowed: 03 Hours Total Marks: 100
Note:- Attempt any five questions. All questions carry equal marks.
Q.No.1 How the essential mineral elements become fruitful for plants? Elaborate your answer through “uptake & distribution” phenomena with reference to essential mineral elements of plants. (20)
Q.No.2 Define Ecologist and Ecologist. Write down the features of climatic influences on the growth of plants. Discuss the positive and negative impacts of climatic changes on the entire life of plants. (20)
Q.No.3 What are the several strategic techniques which are being implemented mostly all over the world to conserve natural resources of environment? Write down the different methods to conserve the environmental natural resources. (20)
Q.No.4 How would you define sex-linked genes? What is the crucial role of these genes in sex-linked inheritance? Why most of sex-linked genes are located on ‘X’ chromosome? (20)
Q.No.5 What is adaptive mutation? Would it be good or bad for environment? How can you correlate adaptive mutation to study the evolutionary changes in environment? (20)
Q.No.6 Differentiate between genes and genetic code. How can genetic code construct and work in the life of an organism? Write down various types of genetic codes with suitable example and the functional importance of genetic code. (20)
Q.No.7 Why Neo-Darwinism is most acceptable than Darwinism? How Neo Darwinism is building up a modern insight and evidence? Briefly explain your supporting ideas with daily life examples. (20)
Q.No.8 Draw the ring structures of the following carbohydrates: (20)
i. Glucose + Glucose = Maltose
ii. Galactose + Glucose = Lactose
iii. Glucose + Fructose = Sucrose
iv. Starch