Which of the following replaces guanine in rna?
(a) adenine
(b) thymine
(c) cytosine
(d) uracil
(e) none of the above

What are genotypes? what are phenotypes?

Amylase becomes denatured at a temperature of 80°c. during an experiment to study the effect of varyingtemperature on enzyme activity, amylase’s reactivity with starch was measured at body temperature (37°c), andthen again at an increased temperature of 42°c. how would this increase in temperature affect the experiment

Which food could be transported in a galvanized metal container?