One way to fix that sentence is to switch around the two phrases used; 'My mother and father are both scientists' and 'It must have been my destiny to become interested in biology.' 
It must have been my destiny to spark an interest in Biology, as my mother and father are both scientists. 
That's a way to fix that sentence used in your question. 
Also, 'destiny' was spelled incorrectly. 
This sentence may seem run on if you don't place a conjunction between the two phrases, or if the phrases are not switched. 
If the sentence is to be used with a conjunction, it may end up like this....
My mother and father are both scientists, so it must have been my destiny to become interested in biology. 
Or, you may just use a period, to change the two phrases used into two separate sentences. 
Like this; 
My mother and father are both scientists. For that reason, it must have been my destiny to become interested in biology. 
ALSO, as you can see above, I have added a few words to the last sentence. Those three words, 'For that reason', give closure to the two sentences. 
Hope this helped!
        
                    
             
        
        
        
The desire to gain "invisible strength"
Amy Tan opens the story saying, "I was six when my mother taught me the art of invisible strength. It was a strategy
for winning arguments, respect from others, and eventually, though neither of us knew it
at the time, chess games." She talks about how gaining this "invisible strength" is one of the benefits of her chess playing. This isn't just mentioned in the first paragraph, but is shown again when she says, " I discovered
that for the whole game one must gather invisible strengths and see the endgame before
the game begins." She likes that chess has all these secrets that must never be told, and prides herself on learning these as she continues to get better.
 
        
             
        
        
        
The answer would be an opportunity cost
        
             
        
        
        
In the body of the Declaration of Independence, Jefferson illustrates how the king of England is not living up to these expectations.
<h3>What is the 
Declaration of Independence?</h3>
This document arise from the Second Continental Congress's public act of declaring the American colonies independent from Great Britain.
Jefferson, who was part of the founding father, illustrated in the document how the king of England is not living up to these expectations.
Read more about Declaration of Independence
<em>brainly.com/question/9515546</em>
#SPJ1
 
        
             
        
        
        
The reason for the English civil war was over England's government. It was fought between Parliamentarians and Royalists. 
Parliamentarian is simply someone or people that want the government to be a parliament. 
Royalists were supporters of King Charles I and wanted him to stay in power.
Hope this helps!