In order for a eukaryotic gene to be engineered into a bacterial colony to be expressed, what must be included in addition to the coding exons of the gene?

a) the introns
b) eukaryotic polymerases
c) a bacterial promoter sequence
d) eukaryotic ribosomal subunits
e) eukaryotic trnas

The correct option is C) a bacterial promoter sequence

Explanation:

In the field of genetics, a promoter is defined as a sequence which initiates the process of transcription of a gene. In the bacterial cell, the promoter region is present upstream and the process of transcription won't occur unless the promoter sequences is present. Hence, in addition to our desired code of exons, a bacterial promoter sequence must be attached for the expression of the genes.

Other options like introns are not required because introns are the non- coding sequences and they do not have any role to play in the expression of genes.

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.

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.