Answer: Some algal (algae) species can act both as "plants" and as "animals" at the same time. As “plants” the algae produce their own food and as “animals” they can eat other plants or even their own grazers.
Answer:
The consumption of a drug that inhibits or block the enzyme primase will have problems for the replication of DNA, since it is not possible to synthesize a new strand without this enzyme.
Explanation:
During DNA replication, the enzyme primase is responsible for synthesizing the primers, RNA fragments necessary for the DNA polymerase III to synthesize the new DNA strand.
If for any reason the action of the primase is blocked, the primer could not be synthesized and the effect of DNA polymerase III would be null, so the new DNA strand could not be synthesized.
In DNA replication, the primase contributes to the formation of small fragments of DNA, by the action of polymerase III, which are called Okazaki fragments. These fragments will require the action of another enzyme, ligase, in order to form a continuous DNA strand.
Answer:
Svalbard is a kind of insurance policy for other gene banks. Plant breeders and researchers depend on seed banks around the world to obtain varieties with useful traits that they need. If those seed banks later lose their own resources, because of natural or man-made disaster, the collections could be restored by getting the copies back from svalbard.
Explanation:
Answer:
A) Peptidoglycan
D) Lipopolysaccharide
Explanation:
Gram-negative bacteria have a cytoplasmic membrane, a thin peptidoglycan layer, and an outer membrane containing lipopolysaccharide. There is a space between the cytoplasmic membrane and the outer membrane called the periplasmic space or periplasm.
This statement is true. Developing countries indeed tend to have more people in urban areas than rural areas. For example, New York City has the massive population in the state of New York, compared to its rural areas upstate.
