Ncert – class 8- science – Chapter 6: Reproduction in Animals 1 Welcome to your Ncert - class 8- science - Chapter 6: Reproduction in Animals 1 1. _______ is the production of an exact copy of a cell of any living part or a complete organism. Multiple fission Binary fission Cloning Budding None 2. The fusion of male and female gametes results in the formation of: Embryo Zygote Sperm Egg None 3. Give the proper correlation.Budding : ______ :: Binary fission :______ Hydra, Rhizopus Amoeba, Hydra Hydra, Amoeba Amoeba, Rhizopus None 4. Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because Greater amount of DNA is involved in sexual reproduction Genetic material comes from parents of two different species Sexual reproduction is a lengthy process Gametes of parents have qualitatively different genetic composition None 5. Fill in the blank by choosing the correct option:During binary fission, the nucleus of the parent cell __________. sometimes divides while other times does not None of the above does not divide divides None 6. Binary fission is seen in: Homo sapiens Kalanchoe Spirogyra Amoeba None 7. What type of fertilization takes place in frog and fish? In vitro fertilization Internal fertilization In vivo fertilization External fertilization None 8. Asexual method of reproduction by binary fission is common to which of the following?(i) Some eukaryotes(ii) All eukaryotes(iii) Some prokaryotes(iv) All prokaryotes (i) and (ii) (i) and (iv) (ii) and (iii) (iii) and (iv) None 9. How did Dolly, the cloned sheep die? Brain haemorrhage Lung disease Mouth infection Heart disease None 10. Single called animals are said to be immortal because They can tolerate any degree of change in temperature They can reproduce throughout their life span They continue to live as their daughter cells They grow indefinitely in size None 11. Apart from Hydra, budding can also be observed in: None Ameoba Yeast Both A and B None 12. Which of the following stages is necessary in the life cycle of an animal in which complete metamorphosis occurs? Adult All of the above Egg Larva None 13. In human beings, a single matured egg is released into the by one of the ovaries every month. 14. Egg-producing animals such as birds are called: Unisexual Hermaphrodite Oviparous Viviparous None 15. Unlike hen's egg, frog's egg is not covered by a ________ and it is comparatively very delicate. jelly spore None of the above shell None 16. ........... is a mode of asexual reproduction. Pollination Germination Cloning Budding None 17. Asexual reproduction produces new individuals that are: Genetically identical to their parents. Genetically identical to their siblings. Both Genetically identical to their parents. and Genetically identical to their siblings. Genetically unidentical to their parents. None 18. Which of the following points is correct?OviparousViviparous1. They lay eggs.1. Give birth to young ones directly.2. Chances of survival of young ones are less.2. Chances of survival of young ones are more.3. E.g. Whale and dolphins3. E.g. Birds and frog 1,2 2,3 None 1,2 None 19. Which of the following statements is not correct regarding oviparous animals? Females lay fertilized/unfertilized eggs at a safe place. Examples of oviparous animals are all birds, most reptiles and egg-laying mammals. Development of zygote takes place outside the female's body. None of these None 20. How do the sperms reach the egg during external fertilization in water bodies? Animals carry sperms to the egg Eggs float to the sperms None of the above Sperms randomly swim to the eggs using tail None Time's up Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
