0 123456789101112131415 Science : Ch 08 – How do Organisms Reproduce This test is designed based on NCERT Syllabus for Class 10 Topics : How do Organisms Reproduce Each time random 15 questions will be displaced So retake the quiz till you have mastered all the questions 1 / 15 Offspring produced by asexual method of reproduction have more similarity among themselves because: Asexual reproduction involves only one parent Asexual reproduction does not involve gametes Asexual reproduction occurs before sexual reproduction Asexual reproduction occurs after sexual reproduction only one parent is involved in the Asexual reproduction ,there is no fusion of male and female gamates. only one parent is involved in the Asexual reproduction ,there is no fusion of male and female gamates. 2 / 15 Characters that are transmitted from parents to ofspring during reproduction Only similarities with parents Only variations with parents Both similarities and variations with parents Neither similarities nor variations similarities due to sharing of chromosomes from both the parents variation due to mutuation ,genetic recombination similarities due to sharing of chromosomes from both the parents variation due to mutuation ,genetic recombination 3 / 15 Choose the precise statement(s) on budding in yeast from the following: A parent cell divides into two or more daughter cells and here the parent identity is lost In this the elongated nucleus divides to form two or more daughter nuclei. A bud arises from a particular region on a parent body After detaching from the parent body the bud grows into a new independent individual Budding in which a bud arises from a particular region on a parent body. And after detaching from the parent body the bud grows into a new independent individual Budding in which a bud arises from a particular region on a parent body. And after detaching from the parent body the bud grows into a new independent individual 4 / 15 Factors responsible for the rapid spread of bread mould on slices of bread are: Large number of spores Availability of moisture and nutrients in the bread Presence of tubular branched hyphae Formation of round shaped sporangia 1 2 1 And 2 1 and 3 Bread mould prefers damp/warm conditions with ample nutrient supply, on which air-borne spores land and germinate. Bread mould prefers damp/warm conditions with ample nutrient supply, on which air-borne spores land and germinate. 5 / 15 Which among the following diseases is not sexually transmitted? Syphillis Hepatitis HIV-AIDS Gonorrhoea Hepatitis is not a sexually transmitted disease. It is a water-borne viral disease compared to other options. Hepatitis is not a sexually transmitted disease. It is a water-borne viral disease compared to other options. 6 / 15 The number of chromosomes in parents and ofsprings of a particular species remains unchanged due to Doubling of chromosomes during gamate formation. Halving of chromosomes during gamate formation Halving of chromosomes during zygote formation Doubling of chromosomes during gamate formation The gametes are reproductive cells. They contain only half the number of chromosomes as compared to the normal cells. The gametes are reproductive cells. They contain only half the number of chromosomes as compared to the normal cells. 7 / 15 Assertion (A): Variation is useful for the survival of species over time. Reason (R) : Populations of organisms fill well-defined places in the ecosystem, using their ability to reproduce Both (A) and (R) are true and (R) is correct explanation of the assertion Both (A) and (R) are true but (R) is not the correct explanation of the assertion (A) is true but (R) is false (A) is false but (R) is true Reproduction is linked to the stability of populations of species., but variation is useful for the survival of species. Reproduction is linked to the stability of populations of species., but variation is useful for the survival of species. 8 / 15 What is the mode of asexual reproduction in Amoeba? Binary Fission Fragmentation Budding Regeneration Or Budding 9 / 15 What is the mode of asexual reproduction in planaria? Spore Formation Fragmentation Binary Fission Regeneration 10 / 15 What is the mode of asexual reproduction in Rhizopus Spore Formation Fragmentation Budding Binary Fission 11 / 15 What is the mode of asexual reproduction in Spirogyra Spore Formation Budding Binary Fission Fragmentation 12 / 15 which of the following is a viral STD? Gonorrhoea Syphilis. Both 1 & 2 HIV-Aids And Warts 13 / 15 Which of the following is surgical method of birth control in females? Tubectomy Vasectomy Both 1 & 2 None Of These 14 / 15 Tubectomy does not prevent the spread of sexually transmitted diseases. True False Not sure Don’t know 15 / 15 The number of chromosomes shared from both male & female are 26 from each 23 from each 46 from each 12 from each Your score is 0% Restart quiz