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Statement A : Totipotency refers to nthe...

Statement A : Totipotency refers to nthe potential of a cell to develop different cells, tissues, organs and finally an organism. Statement B: Dolly, the transgenic clone was obtained as a result of totipotency.

A

Statement A is correct and Statement B is wrong

B

Both the statement A and B are correct

C

Both the statement A and B are wrong

D

Statement A is wrong and statement B is correct

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Statement A : Pluripotency refers to stem cells that differentiates into three germ layers. Statement B : Multipotency refers to stem cells that can differentiate into various types of cells that are related

Identify the correct statement(s). (i) Totipotency is the ability of single cell to produce a whole organism. (ii) Pluripotency refers to ability of stem cell with apotential to differentiate into any kind of germ layers. (iii) Unipotency refers to ability of stem cell to differentiate into one cell type. (iv) Oligopotency refers to stem cells to differentiate into few cell types.

Read the following statements and select the correct option. Statement 1 : Malignant tumors normally remain confined to their original location, do not spread to other body parts and cause less damage. Statement 2 : Cancer arising from epithelial tissues of internal organs and glands is referred to as sarcoma e.g., breast cancer, cervical cancer etc.

An embryologist interested in studying the morphogenetic movements in chick embryo, during 3 cells layer stage of the embryo, added some vital stains as embryonic fate markers (embryonic fate markers usually stain the cells and in future development of embryo the stained cells differen tiate into developing organ. Thus the movement of the cell can be traced). He gave the upper layer green colour, middle layer orange and innermost layer blue. a. Name the 3 layers mentioned above. b. Based on your knowledge regarding the development of an embryo predict three organs with these respective colours.

Consider the following statements and choose the correct option. i. The genetic constitution of a plant is unaffected in vegetative propagation ii. Rhizome in ginger serves as an organ of vegetative reproduction iii. Totipotency of cells enables us to micropropagate plants

Read the given statements and select the correct option Statement 1 : Physiological capacity of organisms to produce off spring under natural conditions is called as reproductive potential Statement 2 : Minimum number of individuals which an environment can sustain is referred to as its carrying capacity

These questions consists of two statements each printed as Assertion and Reason. Choose any one of the following response to answer these questions. Both Assertion and Reasort are true and Reason is correct explanation of Assertion.Both Assertion and Reason are true but Reason is not correct explanation of Assertion . Assertion is true but Reason is false Both Assertion and Reason are false: Assertion :Stem cells can act as a c repair system by regenerating damaged and diseased organs. Reason :Stem cells are capable ofself renewal and exhibit cellular potency.

Read the following statements regarding the various techniques used in cancer detection. (i) Cancer detection is based on biopsy and histopathological studies of the tissue, and blood and bone marrow tests for increased cell counts in case of leukaemia. (ii) In biopsy, a piece of the suspected tissue cut into thin sections is stained and examined under microscope by a pathologist. (iii) Techniques like radiography (use of X-rays), CT (computed tomography) and MRI(magnetic resonance imaging) are very useful to detect cancers of the internal organs. (iv) Computed tomography uses strong magnetic fileds and non-ionising radiations to detect physiological changes in living tissues. (v) MRI uses X-rays and ionising radiation to generate a 3-D image of the internal structure of an object. Which of the above statements are incorrect ?

Read the given statements that define functions of a particular hormone. (i) Regulates the development, maturation and functions of epiddymis, vas deferens, seminal vesicle, prostrate gland, urethra, etc. (ii) Stimulates muscular growth of facial and axillary hair, aggressiveness, low pitch of voice, etc. (iii) Stimulates spermatogenesis. (iv) Act on CNS and sexual behaviour (Libido). (v) Produce anabolic (synthetic) effect on protein and carbohydrate metablosim. (vi) The Leydig,s cells/intestitial cells (present in interbular space). Secrete this hormone under the influence of LH. Which of the following hormones is referred here?

SARAS PUBLICATION-APPLICATIONS OF BIOTECHNOLOGY -EXAMPLE
  1. Statement A : Totipotency refers to nthe potential of a cell to develo...

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  2. What is genetically engineered insulin ?

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  3. How was Insulin obtained before the advent of rDNA technology? What w...

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  4. ELISA is a technique based on the principles of antigen- antibody reac...

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  5. Gene therapy is an attempt to correct a Genetic defect by providing a ...

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  6. If a person thinks he is infected with HIV, due to unprotected sex, an...

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  7. What are DNA vaccines ?

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  8. Explain how "Rosie" is different from a normal cow.

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  9. Mention the number of primers required in each cycle of PCR. Writen th...

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  10. What are transgenic animals?

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  11. Differentiate between Somatic cell gene therapy and Germline gene ther...

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  12. What are stem cells? Explain their role in the field of medicine.

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  13. PCR is a useful tool for early diagnosis of an Infectious disease. Ela...

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  14. Explain why cloning of Dolly, the sheep was such a major scientific br...

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  15. Mention the advantages and disadvantages of cloning.

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  16. How is the amplification of a gene sample of interest carried out usin...

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  17. Explain how ADA deficiency can be corrected ?

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  18. One of the applications of biotechnology is 'gene therapy" to treat a ...

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  19. Name the hereditary disease for which the first clinical gene therapy ...

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  20. Mention the steps involved in gene therapy to treat this disease.

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  21. What are recombinant vaccines ? Explain the types .

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