Answer:
Chromatids are the two different halves that compose the chromosome and contain the information that will later be translated into your genome.
Genome is all of the hereditary information that a human being carried.
 
        
                    
             
        
        
        
Answer:
True 
Explanation:
Velcro was coined from the combination of the words “velvet” and “crochet.” It is made up of two strips of fabric in which one is covered in thousands of tiny hooks and the other with thousands of tiny loops. It was discovered by George de Mestral.
 
        
             
        
        
        
Answer: Ras activity would be significantly slower in its response to extracellular signals.
Explanation:
• GTPase acts as a catalyst in converting RasGTP (active state) to RasGDP (inactive state) 
• A mutant lacking the GTPase activating protein cannot activate GTPase so thee will nit be any functional GTPase 
• if GTPase is not present then RasGTP may be expdessed for longer periods of time and there will be a lag until it eventually switches "off)
 
        
             
        
        
        
The genotype would be X'Y for the father (he would be colorblind)
The genotype would be X'X for the mother (she would be a carrier)
The offspring would be X'X' _ X'X_ X'Y_ XY
The ratio would be 1:1 normal to colorblind
Hope this was helpful(;
        
             
        
        
        
Answer:
a. In the presence of 2,4 dinitrophenol, which is soluble through the lipid membranes, the H+ gets an another route to pass through the membrane. It hampers the proton gradient potential without any generation of ATP. The gradient that was being utilized for the generation of energy is now just lost in the form of heat.  
b. With the reduction in the generation of energy, the cells get devoid of ATP, and drive the electron transport chain intensely so that the collapsing proton gradient gets re-established. However, it prevents the ATP synthase by providing a different path to the proton ions and thus diminishing the H+ concentration gradient.