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Reproduction in Animals Test - 14

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Reproduction in Animals Test - 14
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  • Question 1
    1 / -0
    The process of series of changes from larva to adult after embryonic development is called: 
    Solution
    • Metamorphosis is a biological process by which animals, including insects, amphibians and few aquatic animals undergo extreme and rapid physical changes someday after birth. The effect of metamorphosis modifies the entire body of an organism. 
    • For example, the Life cycle of a frog: There are three stages where the eggs of a frog develop into a larva (tadpole) and later become an adult frog. 
    So, the correct option is D.
  • Question 2
    1 / -0
    The ability of a cell to divide into several cells during reproduction in Plasmodium is called as
    Solution
    During unfavorable conditions, cyst wall is formed around plasmodium. Inside cyst nucleus divides many times to produce many daughter nuclei. During favorable condition, cyst break to release many daughter cell and form new organism
    So, the correct answer is 'Multiple fission'
  • Question 3
    1 / -0
    How is reproduction in Hydra different from that in Amoeba?
    Solution
    Budding is a mode of asexual reproduction in which a new organism is developed from an outgrowth or bud developed on the parent's body. Hydra reproduces through budding.
    Binary fission is also a mode of asexual reproduction in which the parent cell splits into two daughter cells e.g., Amoeba.
    Thus, the correct answer is option A.
  • Question 4
    1 / -0
    New individuals formed by asexual method of reproduction have greater similarity among themselves because:
    (i) Asexual reproduction involves only one parent.
    (ii) Asexual reproduction does not involve gametes.
    (iii) Asexual reproduction occurs before sexual reproduction.
    (iv) Asexual reproduction occurs after sexual reproduction.
    Solution
    In sexual reproduction, fusion of male and female gamete takes place. So, mixing of genetic trait occurs in sexual reproduction. In asexual reproduction, there is no fusion of male and female gamete and offspring develops from single parent because of which new individual is exact copy of parent and inherit same genetic traits. Thus, the correct answer is option A.
  • Question 5
    1 / -0
    The movement of eggs from the ovaries to the uterus proceed through the ______________.
    Solution
    • The eggs are produced in the ovaries and are transferred to the uterus through the fallopian tube after fertilization.
    • The process of fertilization also takes place within the fallopian tube. 

    Thus, the correct answer is (B) - Fallopian tube.

  • Question 6
    1 / -0
    Binary fission is a type of:
    Solution
    Binary fission is a type of asexual reproduction, in which the parent cell divides into two daughter cells.
    Binary fission occurs in amoeba.
    Thus, the correct answer is option B.
  • Question 7
    1 / -0
    Which of the following was the first successful animal clone? 
    Solution
    Dolly (5 July 1996 – 14 February 2003) was a female domestic sheep and the first animal produced by cloning from an adult somatic cell by using the process of nuclear transfer. 
    Hence, option B is the correct answer.
  • Question 8
    1 / -0
    Which of the following types of reproduction leads to the variation in the population?
    Solution
    • The process of sexual reproduction involves two parents, each contributing one gamete. The fusion of both the male and female gametes leads to the formation of the zygote, which leads to the formation of the new individual.
    • Thus, the new individual receives genes from both the parents and has mixed features of both leading to variations.
    • In asexual reproduction and vegetative propagation, only one parent is involved and the genetic identity is maintained.

    So, the correct answer is option A.
  • Question 9
    1 / -0
    Animals who give birth to young ones are:
    Solution
    • Animals giving birth to young ones are called viviparous animals. The egg of these animals typically contains less yolk insufficient to support the development of the zygote into an embryo. Hence, development proceeds inside the body of the female animal, and the fully developed embryo is delivered. 
    • Oviparous animals lay eggs. Their egg typically has more amount of yolk and can support the development of the zygote into an embryo outside the body of the mother.
    • Ovoviviparous animals lay eggs and develop the eggs inside the mother's body.

    So, the correct answer is option B.
  • Question 10
    1 / -0
    The most fundamental characteristic of living being is ____________.
    Solution
    • Reproduction is the process by which new individual organisms or 'offspring' are produced from their 'parents' and thus, it is a fundamental feature of all known life forms. Each individual organism exists as a result of reproduction.

    Therefore, the correct answer is option D.
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