Sucrase breaks down sucrose (or “table sugar”) into glucose and fructose, and lactase breaks down lactose (or “milk sugar”) into glucose and galactose. The monosaccharides (glucose) thus produced are absorbed and then can be used in metabolic pathways to harness energy.
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The frequencies of R is 0.75 and the frequencies for R' is 0.25.
Explanation:
Data given:
Genotype frequency of incomplete dominance on flower colour of snapdragon:
RR = red 0.5625
RR' = Pink 0.375
R'R' = 0.0625
frequency of R and R'=?
According to Hardy-Weinberg equilibrium the genetic variation in a given population is constant from one generation to other if no factors causing evolution or genetic drift is there. So,
+ 
+ 2pq = 1
The p represents = homozygous dominant RR
q represents = homozygous recessive R'R'
2pq = frequency of heterpzygous genotype RR'
= 0.5625
p = 0.75 (frequency of R)
= 0.0625
q = 0.25 (Frequency of R')
Their sum is 1 as according to Hardy Weinberg condition:
p+q = 1
We could possibly use water as a fuel source, rather than fossil fuels (which are limited)
Science has already developed something of the sort, and with using water as a fuel source for say vehicles and such, it's inevitable for a positive change to happen because there would be less carbon monoxide; which means less polution.
From the principle of mass conservation in a chemical process, the total mass of the reactants should be the same as the total mass of the products. So, the best answer here would be the first statement.
This is entirely theoretical as photosynthesis is neither a completely efficient process nor does it take place in an isolated system.
The second statement is incorrect since the products of photosynthesis are glucose and oxygen gas, which are completely different compounds from the water and carbon dioxide reactants.
The third statement is incorrect not only because it contradicts the principle of mass conservation, but because—if anything—mass is lost in the course of an inefficient chemical process like photosynthesis in the form of energy wasted as heat.
The last statement is incorrect for the same reason as the second statement is incorrect; the products are completely different substances from the reactants. For example, one of the products—glucose—can undergo combustion. One of the reactants, water, cannot combust.
