Related InterviewSolutions

• Which of the following is not correct regarding sexual reproduction ?A. It is usually biparental.B. Gametes are always formed.C. It is a slow process.D. It involves only mitosis.
• In these animals, the female retain the eggs inside its body after fertillisation and allows the development of embryo inside the body without providing extra nourishment ot the developing embryo as the placenta is absent. Such animlas are called asA. oviparous animalsB. viviparous animalsC. ovoviviparous animalsD. none of these.
• Offsprings of oviparous animal are at greater risk of survival as compared to those of viviparous animals becauseA. proper embryonic care and protection is absentB. embryo does not develop completelyC. progenies are of smaller sizeD. genetic variations do not occur.
• Life begin in all sexually reproducing organisms as aA. single-celled zygoteB. double-celled zygoteC. haploid zygoteD. haploid gametes.
• Organisms reproducing throughout the year are called _______ breeders e.g., ______ , and those who show recurring sexual activity are called _______ breeders e.g., _______ .A. continuous, sparrow, seasonal, henB. seasonal, lizard, continuous, henC. continuous, man, seasonal, tigerD. seasonal, hen, continuous, tiger
• In these figures, two life-cycles are described. Mark the correct option. A. A represents primitive life forms and B represents more advnced life forms.B. A represents terrestrial life forms and B represents aquatic life forms.C. A rrepresents asexual reproduction and B represents sexual reproduction.D. Both flow charts basically represent the same life-cycle.
• A few statements with regard to sexual reprodction are given below. (i) Sexual reproduction does not always require two individuals. (ii) Sexual reproduction generally involves gametic fusion. (iii) Meiosis never occurs during sexual reproduction. (iv) External fertilisation is a rule during sexual reproduction. Choose the correct statements from the option below.A. (i) and (iv)B. (i) and (ii)C. (ii) and (iii)D. (i) and (iv)
• A few statements describing certain features of reproduction are given below. (i) Gametic fusion takes place. (ii) Transfer of genetic material takes place. (Iii) Reduction division takes place. (iv) Progeny have some resemblance with parents. Select the options that are true for both asexual and sexual reproduction from the options given below.A. (i) and (ii)B. (ii) and (iii)C. (ii) and (iv)D. (i) and (iii)
• The statements given below descibe certain features that are observed in the pistil of flowers. (i) Pistil may have many carpels. (ii) Each carpel may have more than one ovule. (iii) Each carpel has only one ovule. (iv) Pistil have only one carpel.A. (i) and (ii)B. (i) and (iii)C. (ii) and (iv)D. (iii) and (iv)
• Given below are a few statements related to external fertilisation. Choose the correct statements. (i) The male and female gametes are formed and released simultaneously. (ii) Only a few gametes are released into the medium. (iii) Water is the medium in a majority of organisms exhibiting external fertilisation. (iv) Offspring formed as a result of external fertilisation have better chance of survival than those formed inside an organism.A. (iii) and (iv)B. (i) and (iii)C. (ii) and (iv)D. (i) and (iv)