Answer:
1. Isolation of donor DNA fragment or gene.
2. Selection of suitable vector.
3. Incorporation of donor DNA fragment into the vector.
4. Transformation of recombinant vector into a suitable host cell.
5. Isolation of recombinant host cell.
Answer:
Certain fossils, called index fossils, help geologists match rock layers. To be useful as an index fossil, a fossil must be widely distributed and represent a type of organism that existed for a brief time period. Index fossils are useful because they tell the relative ages of the rock layers in which they occur.
The answer is D) codes for a specific trait . Hopefully its right.
Answer:
Explanation:
The tundra and the taiga. Taiga is found in North American and Eurasia regions. Tundra is found in native Arctic and and Antarctic circle.