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What did the experiments by Hammerling on Acetabularia prove?

Acetabularia : it is a unicellular green alga (uninucleate). experiments on acetabularia by hammerling proved the role of the nucleus in heredity. hammerling’s experiment included the exchange of stalk and rhizoid. hammerling proved the existence of heritable data in the nucleous on acetabularia – single-celled algae. this experiment demonstrated that the nucleus contains genetic information and controls development . the experiment also proved the existence of morphogenetic substances..

What did experiment by Weismann prove?

Acetabularia used in Hammerling's nucleocytoplasmic experiments is

What did the monohybrid and dihybrid experiments performed by Mendel prove? What laws were formulated on the basis of his observations?

Cell Biology of Acetabularia

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• H. G. Schweiger  

Part of the book series: Current Topics in Microbiology and Immunology ((CT MICROBIOLOGY,volume 50))

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The various species of the genus Acetabularia are the best known members of the family Dasycladaceae because of their extensive use as research objects in the fields of developmental biology, molecular biology and cytology. These cells combine a number of unique characteristics which make them particularly well suited for use in these fields. These characteristics include their abnormally large size, their pronounced morphogenetic capabilities and the fact that they are able to survive for long periods following such operations as enucleation and transplantation of nucleus-containing cell fragments.

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Schweiger, H.G. (1969). Cell Biology of Acetabularia. In: Arber, W., et al. Current Topics in Microbiology and Immunology. Current Topics in Microbiology and Immunology, vol 50. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-46169-9_1

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• Experiments on Acetabularia by Hammerling proved the role of

Q. Experiments on Acetabularia by Hammerling proved the role of

Cytoplasm in controlling differentiation, nucleus in heredity, chromosomes in heredity, nucleo-cytoplasmic ratio., acetabularia used in hammerling's nucleocytoplasmic experiment is unicellular uninucleate green algae. hammerling's experiment of acetabularia involved exchanging rhizoid and stalk. presence of hereditary information in the nucleous was proved by the work of hammerling on single celled alga acetabularia..

Experiments on Acetabularia by Hammerling proved the role of:

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Experiments on Acetabularia by Hammerling proved the role of a. Cytoplasm in controlling differentiation b. Nucleus in heredity c. Chromosomes in heredity d. Nucleo-cytoplasmic ratio

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Experiments on Acetabularia by Hammerling proved the role of Nucleus in heredity Cytoplasm in controlling differentiation Chromosomes in heredity Nucleo-cytoplasmic ratio

Acetabularia cell is composed of three segments: the "rhizoid" or base which contains the nucleus, the "stalk," and the "cap." in his experiments, hammerling grafted the stalk of one species of acetabularia onto the rhizoid of another species. in all cases, the cap that eventually developed on the grafted cell matched the species of the rhizoid rather than that of the stalk. this experiment shows that the base is responsible for the type of cap that grows. the nucleus that contains genetic information is in the base, so the nucleus directs cellular development and controls heredity. so, the correct option is 'nucleus in heredity'..

Acetabularia used in Hammerling's nucleocytoplasmic experiments is

• a) nucleus in heredity
• b) nucleoplasmic ratio
• c) chromosomes in heredity
• d) cytoplasm in controlling differentiation

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Experiments on Acetabularia by Hammerling proved the role of

cytoplasm in controlling differentiation

nucleus in heredity

chromosomes in heredity

nucleocytoplasmic ratio

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The correct Answer is: B

J hammerling (1953) carried the grafting experiments involving exchange of nucleus (located at the base) in acetabularia . he proved the role of nucleus in heredity growth etc ., topper's solved these questions.

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Resolution power is the ability to

Cell wall shows

Fluid mosaic model of cell membrane was put forward by

Ribosomes were discovered under E.M. by

Magnification of compound microscope is not connected with

Electron microscope has a high resolution power . This is due to

Hammerling's experiments of Acetabularia involved exchanging

Plasma membrane is made of

Polyribosomes are aggregation of

Organelles can be separated from cell homogenate through

Nucleoproteins are synthesised in

Acetabularia used in Hammerling's nucleocytoplasmic experiments is

According to fluid mosaic model, plasma membrane is composed of