From the calculations, the rate of growth of the culture is  2.88.
<h3>What is exponential growth problem?</h3>
We apply the exponential growth problem when there is an exponential increase.
Thus, we have; P =Poe^rt
P = amount at time t
Po = amount originally present
t = time taken
r = rate of growth
1.6 × 10^6 = 16e^4r
1.6 × 10^6/16 = e^4r
1.0 * 10^5 =  e^4r
ln 1.0 * 10^5 = ln e^4r
11.5 = 4r
r = 11.5/4
r = 2.88
Learn more about exponential growth:brainly.com/question/11487261
#SPJ1
 
        
             
        
        
        
C. Both investigations have benefits and limitations and should be examined together to get the most reliable result
 
        
             
        
        
        
Answer: B
Explanation: Most mammals have only one pair of sex chromosomes in each cell. Males have only one Y chromosome and one X chromosome, while females have two X chromosomes. In Mammals, the Y chromosome contains a gene, SRY, which triggers embryonic development in a male. 
Hope this helps!
        
                    
             
        
        
        
Answer:50% chance, and the genotype would be heterozygous
Explanation:
G=gray r=black
       G     r
G   GG   Gr
r     Gr    rr