Site-specific recombination systems all of the choices are correct i.e.
A. do not depend on extensive nucleotide sequence homology.
B. depend on enzymes that are often specific for sequences within the host.
C. are features of some viruses.
- An exchange between two specified sequences (target sites), either on the same DNA molecule or on two separate DNA molecules, is known as site-specific recombination.
- DNA sequences may be integrated, excised, or inverted as a result of the exchange.
- A site-specific recombinase that can work by itself or with the aid of additional components or enzymes shapes the DNA target during recombination.
- The recombinase is chemically bonded to the ends of the intermediate DNA after DNA breakage at the recombination site; when this process is reversed, the intermediate DNA is resealed to form the recombinant and the recombinase is released.
- During this recombination process, neither replication nor repair are necessary.
learn more about Site-specific recombination here: brainly.com/question/11458760
#SPJ4
<span><span>A correct statement regarding the usage of the microscope is that </span>you should always begin with the lowest power objective lens before going to the higher power, make sure that the lens will not touch the slide. There are instructions on how to properly use the microscope and handle them with care. </span>
Answer: making the body produce anti bodies
Explanation: that’s just what the body does.
Answer:
The periodic table only lists chemical elements, and includes each isotope of each element within one cell. In the typical periodic table, each element is listed by its element symbol and atomic number. For example, “H” denotes hydrogen, “Li” denotes lithium, and so on.
Explanation:
I’m not sure but hope dis help
Answer: A. Genotype is inherited
Explanation: b,c are about phenotype
D, since the maternal parent is mentioned, one can assume a diploid, sexually reproducing species, in which case both parents’ genes contribute.