CBSE Class 10 Biology How do Organisms Reproduce MCQs Set F

Question. ___________ is the portion on which grafting is done and it provides the roots?
(a) Stock
(b) Scion
(c) Both (a) and (b)
(d) None of these

Answer: A

Question. Which one of the options is incorrect?
Vegetative propagation is practised because
(a) Plants which produce non viable seeds can be grown.
(b) It is a easier method than sowing seeds.
(c) Such plants produce seeds and fruits much earlier than other methods
(d) For obtaining better species of plants.

Answer: C

Question. The process of the transfer of pollen grains from the flower of one plant to the stigma of the flower of another plant of the same species is known as
(a) Cross pollination
(b) Fertilisation
(c) Self pollination
(d) None of the options

Answer: A

Question. What is the puberty age in human males?
(a) 8-10
(b) 10-12
(c) 12-14
(d) 14-16

Answer: C

Question. Which of these is not the function of the seminal vesicles present in human males?
(a) To covert the sperms in a fluid medium.
(b) To provide nutrition.
(c) To make their transport easier.
(d) To make them sticky.

Answer: D

Question. In which of the following plant bud in notches of leaves help in its propagation?
(a) Radish
(b) Bryophyllum
(c) Bougainvillea
(d) Jasmine

Answer: B

Question. Vegetative propagation in potato takes place through
(a) Stem
(b) Root
(c) Leaves
(d) Seed

Answer: A

Question.Which of these life processes of an organism helps in the growth of its population?
(a) Nutrition
(b) Respiration
(c) Reproduction
(d) Excretion

Answer: C

Question.The number of chromosomes in parents and offspring of a particular species remains constant due to—
(a) doubling of chromosomes after zygote formation
(b) halving of chromosomes during gamete formation
(c) doubling of chromosomes after gamete formation
(d) halving of chromosomes after gamete formation

Answer: B

Question.In a flower, the parts that produce male and female gametes are——–
(a) stamen and anther
(b) Filament and stigma
(c) Anther and ovary
(d) stamen and style

Answer: C

Question.In the list of organisms given below, those that does not reproduce by the asexual method are————
(a) Spirogyra
(b) dog
(c) yeast
(d) amoeba

Answer: B

Question.Which of these is not a part of male reproductive system?
(a) Scrotum
(b) Oviduct
(c) Vas-deferens
(d) Prostrate gland

Answer: B

Question. Why are the testes located outside the abdominal cavity in scrotum?
(a) Because sperm formation requires more spaces.
(b) Because sperm formation requires a lower temperature.
(c) Because sperm formation requires a higher temperature.
(d) None of the options

Answer: B

Question. The two oviducts in a human female unite into an elastic bag like structure known as
(a) Vagina
(b) Uterus
(c) Fallopian tube
(d) Cervix

Answer: B

Question. The process where the unfertilised egg is released out of the body with the blood used to nourish the embryo is known as
(a) Menstruation
(b) Fertilisation
(c) Germination
(d) Pollination

Answer: A

Question. Unisexual flowers contain
(a) Both stamen and carpel
(b) Only stamen
(c) Only carpel
(d) Either stamen or carpel

Answer: D

Question. The process in which the cytoplasm of a single eukaryotic cell is divided to form two daughter cells is known as?
(a) Karyokinesis
(b) Cytokinesis
(c) Meiosis
(d) Mitosis

Answer: D

Question. What is the surgical method of contraception in female and male respectively?
(a) Tubectomy and Vasectomy
(b) Vasectomy and Copper-T
(c) Tubectomy and Copper-T
(d) None of these

Answer: A

Question.The process of development of seedling from an embryo under suitable condition is called
(a) Regeneration
(b) Pollination
(c) Germination
(d) Dormancy

Answer: C

Question. Hydra reproduces————-by—————
(a) sexually, budding
(b) sexually, regeneration
(c) asexually, budding
(d) asexually, regeneration

Answer: C

Question.Which of these is a disadvantage of vegetative reproduction?
(a) Offspring are genetically identical
(b) It is rapid and economical method of reproduction
(c) It produces seedless fruits
(d) Disease of parent plant gets transferred to the offspring.

Answer: D

Question.When an organism breaks into a number of parts and each part develop into an individual, it is called:
(a) Regeneration
(b) Budding
(c) Binary fission
(d) Spore formation

Answer: A

Question. How many chromosomes are present in a ovum of human being?
(a) 29
(b) 21
(c) 22
(d) 23

Answer: D