Biology · PYQ NEET UG 2021

Nowadays, it is possible to detect the mutated gene causing cancer by allowing the radioactive probe to hybridise its complementary DNA in clone of cells, followed by its detection using autoradiography because:

mutated gene does not appear on a photographic film as the probe has no complementarity with it.
mutated gene does not appear on a photographic film as the probe has complementarity with it.
mutated gene partially appears on a photographic film.
mutated gene completely and clearly appears on a photographic film.

Correct answer · Option 1

mutated gene does not appear on a photographic film as the probe has no complementarity with it.

Explanation

In molecular diagnosis, a single-stranded DNA or RNA tagged with a radioactive molecule (probe) is allowed to hybridise to its complementary DNA in a clone of cells. Due to mutation, the probe does not have complementarity with the mutated gene, hence it does not bind, and the mutated gene does not appear on the photographic film.

Nowadays, it is possible to detect the mutated gene causing cancer by allowing the radioactive probe to hybridise its complementary DNA in clone of cells, followed by its detection using autoradiography because:

Correct answer · Option 1

Explanation

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Nowadays, it is possible to detect the mutated gene causing cancer by allowing the radioactive probe to hybridise its complementary DNA in clone of cells, followed by its detection using autoradiography because:

Correct answer · Option 1

Explanation

Related questions

ऑनलाइन कंप्यूटर आधारित परीक्षा

उपयोगी लिंक

महत्वपूर्ण पेज

कोर्सेज और अभ्यास

संपर्क करें

साझा करें