Genetic engineering is applied to techniques like DNA cloning in which the steps are: step 1: DNA cutting from the parent source; step 2: DNA cut is pasted into the matrix to be modified; step 3: matrix is introduced to the host cell and step 4, vector DNA is isolated. Answer then is B.
Answer:
blood is a type of connective tissue
Explanation:
In the apple maggot fly, the frequency of certain alleles increases steadily as one goes from North to South. This is an example of: Sympatric speciation.
Sympatric speciation is observed when there are no physical barriers which prevent any members of a species from mating with another, and all members are in close contact to one another. A new species, possibly established on a distinct food source or trait seems to develop instinctively.
The example of apple maggot fly supports a model for sympatric speciation in progress. Hawthorn is the native host for the apple maggot fly in North America. However, in the mid-1800s, a new population developed on introduced, domesticated apple.
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Answer:
Explanation:
The epithelial tissues have a role that covers the inner lining of the organs of the body and also covers the outer surface of the body and lining of digestive system. If the body lacks the epithelial tissues then the microbes will invade the body and will cause diseases. The food and other foreign particles will harm the inner lining of the digestive system. This will result in internal leakage.
