Theory of natural selection and how each species had slight mutations in order to differ
Answer:
An antisense sequence with complementary to the target mRNA encoded by the gene of interest
Explanation:
An antisense sequence is usually a short RNA sequence specifically designed in the laboratory to bind by complementary to the DNA/RNA sequence of interest (usually a target mRNA) whose expression is desired to be inhibited. When an antisense bind to its target mRNA, the antisense sequence acts to block translation, thereby inhibiting protein synthesis. Moreover, it has been shown that the double-stranded antisense-RNA complexes may also increase the susceptibility of the target sequence to RNase H digestion.
Answer:
B) Pure culture.
Explanation:
Obtaining a pure culture involves culturing the organism on the bacteriologic agar. Initially blood agar is used because it supports the growth of many bacteria and the type of hemolysis can be observed.
In order to obtain pure cultures, following steps are done :
1)The bacteria are normally streak onto solid media.
2) Inoculating loops are used for streaking.
3) Then the plate is incubated at desired temprature.
4) Then after sometimes , colonies are visible wherever <u>a microbial cell capable of growth on particular medium was deposited on the agar surface.</u>
As in the above scenario , a bit of isolated colony is taken and is inoculated in a separate medium thus a pure culture is formed.
Hence option B) Pure culture is the right answer.
