Answer:
d. Genes that play a role in the same metabolic pathway are organized into an operon.
Explanation:
In prokaryotic organisms like bacteria, polycistronic mRNAs exist which means that each gene does not have a separate promoter of its own. In fact many genes are under the control of a single promoter. These genes being a part of same metabolic pathway are organized into an operon. For example, lac operon and tryptophan operon. In lac operon, three genes named as β-galactosidase, permease and transacetylase are expressed under a single promoter which is known as lac promoter.
In contrast to this, in eukaryotes the mRNAs are monocistronic i.e. only a single gene is controlled under a single promoter.
<span>Oxygenated blood is carried away from the heart through blood circulation veins. arteries. capillaries. the lungs.</span>
Answer:
advantages and disadvantages of sexual and asexual reproduction produce Dun natak variation in the offspring the species can adapt to new environment due to variation which gives them a survival advantage a disease is less likely to affect all adventure in a population
its due to diffusion this happens some times osmosis as well
