The skin plays a role in the production of vitamin D because when dehydrocholesterol reaches the skin by means of the blood and is exposed to ultraviolet light from the sun, it changes to vitamin D in an inactive form.
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No because X and Y do not have D-cell
Answer:
a) 
b)
c) 
Explanation:
Given ,
Frequency of white flower plant (
) is 
Thus, frequency of dominant white allele (
) is equal to 
As we that, as per Hardy-Weinberg equilibrium equation
Substituting the value of in above equation, we get
a) As per Hardy-Weinberg equilibrium equation
Substituting the given and calculated values in above equation, we get -
b) The frequency (decimal form) of the dominant allele
c) number of homozygous purple flower plants
frequency of purple flower plants (
) 
Number of flowers
Answer:
connective tissue comes in a vast variety of forms, yet they typically have in common 3 characteristic components: cells, large amounts of amorphous ground substance, and protein fibers
