Assertion: Chromosomal aberrations are caused by a break in the chromosome or its chromatid. Reason: Duplication, deficiency, transversion and translocations are the result of chromosomal aberrations.

Question

Assertion: Chromosomal aberrations are caused by a break in the chromosome or its chromatid. Reason: Duplication, deficiency, transversion and translocations are the result of chromosomal aberrations. (A) If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion (B) If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion (C) If Assertion is true but the Reason is false (D) If both Assertion and Reason are false

Tardigrade Admin · Accepted Answer

Variations in the structure and number of chromosomes are called chromosomal aberrations. Strucural changes can be of following types: (i) deficiency, which involves loss of a part of chromosome, (ii) duplication, which involves addition of a part chromosome, (iii) inversion which involves a reverse order of the genes in a part of chromosome and (iv) translocation, which involves exchange of segments between non homologous chromosomes.

Q. Assertion: Chromosomal aberrations are caused by a break in the chromosome or its chromatid. Reason: Duplication, deficiency, transversion and translocations are the result of chromosomal aberrations.

If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion

If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion

If Assertion is true but the Reason is false

If both Assertion and Reason are false

Q. Assertion: Chromosomal aberrations are caused by a break in the chromosome or its chromatid.
Reason: Duplication, deficiency, transversion and translocations are the result of chromosomal aberrations.