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Reproduction in Animals Test - 19

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Reproduction in Animals Test - 19
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  • Question 1
    1 / -0
    How many parents were involved in the cloning and production of Dolly?
    Solution

    Dolly was a female domestic sheep, and the first mammal cloned from an adult somatic cell, using the process of nuclear transfer. One Finn Dorset (provided nucleus) and 2 Scottish blackface ewes, one provided egg, and another surrogate mother. So, three parents were involved.

    So, the correct answer is option C. 

  • Question 2
    1 / -0
    Name of the first clone of sheep produced by Ian Wilmut is?
    Solution
    • Cloning of an animal using somatic cell was successfully performed for the first time by Ian Wilmut and his colleagues at the Roslin Institute in Edinburgh, Scotland. 
    • They successfully cloned a sheep named Dolly. 
    • Dolly was born on 5th July 1996 and was the first mammal to be cloned using somatic cell.

    Option "B" is the correct answer.
  • Question 3
    1 / -0
    Which organism was the nuclear donor for Dolly?
    Solution
    Dolly was a female domestic sheep, and the first mammal cloned from an adult somatic cell, using the process of nuclear transfer.
    One Finn Dorset and two Scottish blackface ewes were the three parents involved in the cloning of Dolly sheep. Finn Dorset was the nuclear donor. Its mammary gland cell's nucleus was used for the purpose and the Scottish blackface ewe whose egg was used in the cloning of Dolly sheep. Another Scottish blackface ewe was the surrogate mother.

    So, the correct option is 'Finn Dorset'.
  • Question 4
    1 / -0
    Fill in the blank by choosing the correct option:
    During binary fission, the nucleus of the parent cell __________.
    Solution
    During binary fission, the nucleus of the parent cell always divides into two, so that both the daughter cells can have a nucleus.
    So, the correct option is A.
  • Question 5
    1 / -0
    Apart from Hydra, budding can also be observed in:
    Solution
    Both Hydra and yeast reproduce asexually by budding, while Amoeba reproduces by binary fission.
    The correct option is B.
  • Question 6
    1 / -0
    Cloning of Dolly was successfully performed in:
    Solution
    Cloning of Dolly was successfully performed by Ian Wilmut and his colleagues at the Roslin Institute in Edinburgh, Scotland.
    The correct option is A.
  • Question 7
    1 / -0
    How did Dolly, the cloned sheep die?
    Solution
    Dolly was a healthy clone, but on 14th February 2003, Dolly died of lung disease.
    So, the correct option is B.
  • Question 8
    1 / -0
    The male gametes produced by testes are called ____________.
    Solution
    • The testes in males produce sperms which are the male gametes. Fertilized eggs are called zygote. 
    • The fusion of male and female gametes results in the formation of a zygote.
    • The zygote grows and develops into the embryo.
    So, the correct option is B - Sperms.
  • Question 9
    1 / -0
    In Hydra, the new individuals develop as ____________ from a single parent.
    Solution
    • In Hydra, a bud develops as an outgrowth due to repeated cell division at one specific site. These buds develop into tiny individuals and, when fully mature, detach from the parent body and become new independent individuals. 
    • The new individuals develop as 'outgrowths' from a single parent. These outgrowths are the bulges or buds.
    So, the correct option is C.
  • Question 10
    1 / -0
    The other name of oviduct is:
    Solution
    The other name of the oviduct is the Fallopian tube that connects the uterus to the ovary.
    The correct option is C.
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