AP BIOLOGY

Detailed explanation-1: -A translocation occurs when a piece of one chromosome breaks off and attaches to another chromosome. This type of rearrangement is described as balanced if no genetic material is gained or lost in the cell. If there is a gain or loss of genetic material, the translocation is described as unbalanced .

Detailed explanation-2: -A translocation, as related to genetics, occurs when a chromosome breaks and the (typically two) fragmented pieces re-attach to different chromosomes. The detection of chromosomal translocations can be important for the diagnosis of certain genetic diseases and disorders.

Detailed explanation-3: -Germ-line mutations occur in reproductive cells (sperm or eggs) and are passed to an organism’s offspring during sexual reproduction. Somatic mutations occur in non-reproductive cells; they are passed to daughter cells during mitosis but not to offspring during sexual reproduction.

Detailed explanation-4: -Final answer: Deletion and duplication are the two most common chromosomal mutations during the synapsis of homologous chromosomes.

Detailed explanation-5: -The four main types of structural chromosomal aberrations are deletion, duplication, inversion, and translocation.