<h2>Answer:</h2>
The great genetic and phenotypic diversity among humans is due to crossing over during meiosis in the human population.
<u>If crossing over does not happen in meiosis then, there will no genetic and phenotypic diversity in humans.
</u>
In simple words, the faces and traits will reappear in generations.
<h2 />
 
        
        
        
Answer:
TAGCCAGTTCGATCC
Explanation:
In DNA, there are 4 different nucleotide bases. Adenine (A), Thymine (T), Cytosine (C) and Guanine (G). 
A (adenine) always pairs with T(thymine) and C(cytosine) always pairs with G (guanine). 
If we have the strand: 
ATCGGTCAAGCTAGG  
We have to pair A with T, and C with G. Therefore, the complementary strand of DNA will be:
TAGCCAGTTCGATCC
 
        
             
        
        
        
Answer:
If one wants to estimate the cost of living of an individual, then the factors such as salary, age, marital status, etc. are independent variables, while the cost of living of a person is highly dependent on such factors. Therefore, they are designated as the dependent variable.