In individuals heterozygous for a chromosome inversion, the homologous chromosomes form a loop in prophase I of meiosis.

Which of the following is effect of inversion?

A. A dicentric and an acentric chromosome in meiosis I as the chiasmata gets terminated when inversion includes centromere  

B. Appearance of deletion and duplication in both the cross over products chromosomes when centromere outside of inversion region  

C. All recombinant gamete are non-viable gametes when single crossing over within inverted region; irrespective to paracentric or pericentic inversion

D. Nonviable gametes are usually produced, resulting in a depression in observed recombination frequencies.

Which of the above statements are correct?

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#Question id: 4579

#Unit 11. Evolution and Behavior

About which of these did Darwin have a poor understanding?

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#Question id: 23777

#Unit 7. System Physiology – Animal

The area over the optic disk, which lacks the visual receptors, is known as  

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#Question id: 14962

#Unit 8. Inheritance Biology

In single factor crosses between two true breeding strains of tree frog, a scientist discovers that plain green tree frogs and tree frogs with a red 'racing stripe' always produce offspring that have red racing stripes. Why?

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#Question id: 23398

#General Aptitude

There are five books A, B, C, D and E. The book C lies above D, the book E is below A and B is below E. Which is at the bottom?

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#Question id: 23243

#Unit 13. Methods in Biology

In Maxam gilbert DNA sequencing autoradiogram is used for band visualization. What modification leads to band visualization?