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Consider the following statements asexual reproduction in animals: 1. The technique of creating the genetically similar and multicellular organism from a single mature cell of the parent is known as cloning Parthenogenesis. 2. Cloning is a form of reproduction in which an egg can develop into an embryo without being fertilized by a sperm. Choose the correct option:

Consider the following statements asexual reproduction in animals: 1. The technique of creating the genetically similar and multicellular organism from a single mature cell of the parent is known as cloning Parthenogenesis. 2. Cloning is a form of reproduction in which an egg can develop into an embryo without being fertilized by a sperm. Choose the correct option: Correct Answer Neither 1 nor 2

  • Parthenogenesis is a form of reproduction in which an egg can develop into an embryo without being fertilized by a sperm. Hence statement 1 is Incorrect.
  • Parthenogenesis occurs naturally in some plants, some invertebrate animal species (including nematodes, some tardigrades, water fleas, some scorpions, aphids, some mites, some bees, some Phasmatodea and parasitic wasps) and a few vertebrates (such as some fish, amphibians, reptiles and very rarely birds).
  • This type of reproduction has been induced artificially in a few species including fish and amphibians.
  • The technique of creating the genetically similar and multicellular organism from a single mature cell of the parent is known as cloning. Hence statement 2 is incorrect.
  • The newborn organism is an exact copy of the parent one, and the structure of DNA is also exactly the same.

Related Questions

Which of the following statements refers to the process of 'parthenogenesis'? 1. It is a natural form of asexual reproduction in which the growth and development of embryos occur without fertilisation. 2. It is a mode of reproduction in which a male organism's sperm fertilizes a female organism's egg outside of the female's body. 3. It is a mode of reproduction in which a male organism's sperm fertilizes a female organism's egg inside of the female's body  Select the correct answer using the codes given below.
Consider the following statements regarding double fertilization and choose the correct answer:
1. At the time of the sperm's approach to the egg nucleus, the male nucleus has the appearance of a continuous thread rolled into a ball
2. It is only the presence of the two nucleoli which serves to distinguish the fertilized egg from the unfertilized egg
3. Finally, the male nucleolus increases in size and fuses with the female nucleolus thus closing the phenomenon of sexual union of the nuclei
4. The fusion of the male gamete with the secondary nucleus results in the formation of a sister embryo
Consider the following statements regarding recurrent type apomixis and choose the correct answer:
1. There is meiosis during the formation of megaspore
2. The embryo sac is diploid in nature
3. The embryo sac never develops from a cell of the archesporium
4. The development of embryo from a cell of an embryo sac other than egg is known as apospory
Which of these describes viviparity correctly? 1. Development of the embryo inside a parent's body 2. Development of the embryo outside a parent's body 3. There are five modes of reproduction differentiated in animals 4. There are two modes of reproduction differentiated in animals
Egg is covered by a tough sheet of tissue that protects it from desiccation and infection by pathogens. But the same tissue also prevents sperm nuclei from encountering the egg nuclei. However, a part of sperm is known to release enzymes that digest this tough sheet. What part of sperm is it?
A multicellular organism that carries a specific genetic change in each cell bacause of an intervention at the fertilized egg stage is a
Asexual reproduction differs from sexual reproduction in that in asexual reproduction, ________
Asexual reproduction differs from sexual reproduction in that in asexual reproduction, ______
Consider the following statements and choose the correct answer:
1. In Oenothera type of monosporic embryo sac, the embryo develops from the micropylar megaspore of the tetrad
2. Antipodal cells are altogether absent in Oenothera type
3. The genus Trapa forms an 8-nucleate embryo sac of the Polygonurn type
4. Oenothera type of embryo sac development has been found to be a characteristic feature of the entire family Onagraceae
Consider the following statements regarding sexual reproduction in plants: 1. Reproduction in plants takes place only through asexual methods. 2. Reproduction in spirogyra takes place through the process of fragmentation. 3. Vegetative propagation in plants can be achieved only by natural method. Which of the statements from above is/are correct?