The question seem to be incomplete but I found the complete question which is:
If you are performing this test on an unknown organism, why is it a good idea to run simultaneous tests on known phenylalanine-positive and phenylalanine-negative organisms?
Here is the Answer:
Inoculation of a positive control and success from it includes certainty to negative outcomes on an unknown organism. That is, you know the test is working effectively, so the negative outcome is most likely precise. Without the positive control, there is dependably a component of uncertainty whether the negative outcome is a genuine negative or a false negative. performing the test on a known phenlalanine-negative organism is valuable in that it exhibits what a negative outcome looks like.
Cytosine
(C) - both;
Thymine (T) – DNA;
Uracil (U) - RNA.
Adenine
(A) - Both
Guanine
(G) - Both
These are the letters that we use to represent the nitrogenous base pairs that make up and thus define a nucleotide
Answer:
-20 items-
Bed
Cat
Dog
desk
water
stove
oven
chair
toilet
shirt
shampoo
shoes
backpack
food
socks
paper
pencil
table
mask
towel
If Plants no longer existed on earth then there would be no way for carbon dioxide to be converted into oxygen, without oxygen animals and humans alike would die. The Worlds "Air" would be toxic for us to breathe, we need plants to survive. Without plants, animals would die of starvation, and predators would as well without substance.
Answer:
Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.
Answer:
<em>The </em><em>significance</em><em> of</em><em> </em><em>chemical</em><em> </em><em>formula</em><em> is</em><em> </em><em>that </em><em>it </em><em>tells </em><em>us </em><em>a </em><em>lot </em><em>about </em><em>the </em><em>chemical</em><em> </em><em>reaction</em>
<em>like </em><em>the </em><em>name </em><em>of </em><em>elements</em><em> </em><em>involved</em><em> in</em><em> it</em><em>,</em><em> </em><em>number</em><em> of</em><em> </em><em>atom </em><em>of </em><em>each </em><em>element</em><em> </em><em>and </em><em>it </em><em>also </em><em>shows</em><em> </em><em>that</em><em> </em><em>which </em><em>type</em><em> of</em><em> </em><em>reaction</em><em> is</em><em> </em><em>going</em><em> on</em>
<em>like </em><em>exothermic</em><em> </em><em>and </em><em>endothermic</em><em>,</em><em> </em><em>combination</em><em>,</em><em> decomposition</em><em> </em><em>etc </em>
<em>hope</em><em> it</em><em> helps</em>
