For the following questions, select the best answer choice based on the relationship between the two statements.

Welcome back — missed you this week. For questions 43-50, the options are: A. If both statements are true and the second explains the first. B. If both statements are true but the second does NOT explain the first. C. If the first statement is true and the second is false. D. If the first statement is false and the second is true. Question 43: First Statement: Family planning is an action planned to attain reproductive health among people. (True) Second Statement: Improved programs covering reproductive health were propagated by reproductive and child health programs (RCH) to create awareness among people. (True) Explanation: The second statement describes how reproductive health is promoted, which is a key aspect of family planning. Thus, the second statement explains the first. The correct option is A. Question 44: First Statement: Introduction of sex education in schools should be encouraged. (True) Second Statement: This will encourage children to believe in myths about sex-related aspects. (False) Explanation: Sex education aims to provide accurate information and dispel myths, not encourage them. The correct option is C. Question 45: First Statement: Mendel was successful in his hybridization. (True) Second Statement: Garden pea proved ideal as experimental material. (True) Explanation: Mendel's success was largely due to the ideal characteristics of the garden pea as an experimental organism. Thus, the second statement explains the first. The correct option is A. Question 46: First Statement: Malaria fever appears at the merozoite stage of Plasmodium. (True) Second Statement: The infective stage of Plasmodium is sporozoite. (True) Explanation: Both statements are true facts about the Plasmodium life cycle, but the sporozoite being the infective stage does not explain why fever occurs at the merozoite stage. The correct option is B. Question 47: First Statement: DNA was first discovered by Watson and Crick (1953). (False) Second Statement: DNA is more stable while RNA is more reactive. (True) Explanation: DNA was first isolated by Friedrich Miescher in 1869. Watson and Crick elucidated its structure in 1953. The second statement correctly describes the relative stability of DNA and RNA. The correct option is D. Question 48: The statements for Question 48 are incomplete in the provided image. Therefore, it cannot be answered. Question 49: First Statement: The promoter gene determines which strand of the DNA double helix acts as the template for mRNA transcription. (False) Second Statement: The promoter gene is the site to which RNA polymerase binds before moving along the DNA to begin the transcription of mRNA on the structural gene. (True) Explanation: The promoter is a binding site for RNA polymerase, initiating transcription, but it does not determine the template strand. The orientation of the promoter determines the template strand. The correct option is D. Question 50: First Statement: Similar structures, physiological processes or modes of life in organisms apparently bearing no close phylogenetic links but showing adaptation to perform the same functions are described as homologous. (False) Second Statement: This suggests the occurrence of convergent evolution. (True) Explanation: The description in the first statement refers to analogous* structures or convergent evolution, not homologous structures. Homologous structures share a common ancestry. The second statement correctly identifies that such characteristics suggest convergent evolution. The correct option is D. Send me the next one 📸