Concept explainers
For each of the following types of chromosomal aberrations, tell: (i) whether the chromosomes of an organism heterozygous for the aberration will form any type of loop during prophase I of meiosis; (ii) whether a chromosomal bridge can be formed during anaphase I in a heterozygote, and if so, under what conditions; (iii) whether an acentric fragment can be formed during anaphase I in a heterozygote, and if so, under what conditions; (iv) whether the aberration can suppress meiotic recombination; and (v) whether the two chromosomal breaks responsible for the aberration occur on the same side or on opposite sides of a single centromere, or if the two breaks occur on different chromosomes.
a. | Reciprocal translocation |
b. | Paracentric inversion |
c. | Small tandem duplication |
d. | Robertsonian translocation |
e. | Pericentric Inversion |
f. | Large deletion |
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