Tag: reproduction in animals
Questions Related to reproduction in animals
First successful animal clone was
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Dolly goat
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Dolly sheep
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Molly goat
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Molly sheep
The first successful animal clone was Dolly sheep on 5$^{th}$July 1996. It was born as a resultant of three mother one provided the egg, another the DNA, and a third carried the cloned embryo. The used for the production of Dolly is somatic cell nuclear transfer, where the cell nucleus from an adult cell is transferred into an unfertilized oocyte whose nucleus has been removed by the process of irradiation. The hybrid cell is then stimulated to divide by an electric shock, and when it develops into a blastocyst it is implanted in a surrogate mother.
Dolly is the name of well known ___________.
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Cloned sheep
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Vector
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Gene
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Virus
Which of the following organism was the cytoplasmic donor of Dolly?
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Scottish black face sheep
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Finn Dorset sheep
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Bonnie
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Sally
Scientists used a Scottish blackface ewe as the cytoplasmic donor (oocyte was used) in the cloning of Dolly sheep.
Which organism was the nuclear donor for Dolly?
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Finn Dorset
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Scottish black face
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Sally
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Rosette
How many parents were involved in cloning and production of Dolly?
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2
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1
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3
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4
Dolly was a female domestic sheep, and the first mammal cloned from an adult somatic cell, using the process of nuclear transfer. It is a transgenic animal.1 Finn Dorset and 2 Scottish blackface ewe were the three parents involved in cloning of Dolly sheep.
First transgenic sheep were carrying
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genes for $\beta$- lactoglobulin
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Genes for Antihemophilic IX
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Genes for Thyroxine
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More than one correct answer
Dolly was a female domestic sheep, and the first mammal cloned from an adult somatic cell, using the process of nuclear transfer. It carries the gene for antihemophilic IX.
So, the correct option is ‘Genes for Antihemophilic IX’.
'Nif' gene for nitrogen fixation in cereal crops like wheat, jowar etc., is introduced by cloning.
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Rhizobium meliloti
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Bacillus thuringiensis
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Rhizopus stolonifer
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Agrobacterium tumefaciens
First cloned animal was
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Dolly sheep
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Polly sheep
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Molly sheep
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Dog
Dolly sheep was born on July 5, 1996, through the technique of somatic cell nuclear transfer. It includes the transfer of cell nucleus from an adult cell into an unfertilized, enucleated oocyte (developing egg cell). Electric shock is given to the hybrid cell to stimulate it to divide and the resulting blastocyst is implanted in a surrogate mother. Dolly was the first clone produced from a cell of an adult mammal. Polly and Molly's sheep have also cloned animals produced by somatic cell nuclear transfer but they were cloned after Dolly (in 1997).
Which of the following was the first successful animal clone?
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Dolly goat
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Dolly sheep
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Molly goat
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Molly sheep
Dolly (5 July 1996 – 14 February 2003) was a female domestic sheep and the first animal produced by the cloning from an adult somatic cell by using the process of nuclear transfer. Hence, option B is the correct answer.
Dolly was given birth by ________
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Finn dorset sheep
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Scottish blackface ewe
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Polled Dorset sheep
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None of these
Dolly was given birth by scottish blackface ewe and finn dorset sheep is the one whose nucleus was clonned.