Aresearcher has carried out giesma staining on a set of human chromosomes, and has arranged these chromosomes into a karyotype. she notices that in a homologous pair, a band is missing from one of the chromosomes. this likely resulted from:
a. a deletion.
b. a duplication.
c. an inversion.
d. a reciprocal translocation.
e. either a deletion or a reciprocal translocation.

The correct answer will be option-E

Explanation:

A karyotype is a cytogenetical representation which is related to the visual appearance of the chromosome present in a cell. The karyotype helps to determine the total number of chromosomes in the cell as well as represent the abnormalities in the chromosomes.

If a band is missing from the karyotype chromosome could be due to the loss of the chromosome segment through deletion or through the reciprocal translocation in which the chromosomes are unusually rearranged chromosome segment.

Thus, option-E is the correct answer.

they fuse to form they have half as many chromosomes as a somatic cell of the same individual. b

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.