I think it’s A blocking pathogen from entering block
The correct answer is C. Short tandem repeats are mostly different in unrelated peoples' DNA. Therefore, it is used to match the DNA of the people of the related family for identification of bodies, during a mass disaster like World Trade Centre. DNA from the nucleus is extracted in the process, and the STR containing regions are amplified and studied and can be matched with that of the relatives.
Observable characteristics would be referred to as "traits".
Answer:
Frequency of recessive allele 
Explanation:
Given -
Total Population size = 919
Number of individual with recessive genotype = 341
Frequency of recessive genotype
Frequency of recessive allele 
Hence, option C is correct
Answer:
B. The information will be reliable
Explanation:
By elimination:
Information on government websites is usually impartial, so A is eliminated. Additionally, information on a government website is not necessarily easy to understand, so that choice cannot be the correct answer either. The only remaining choice is B, so it is correct.
