Answer:
The correct answer is B. Isotopes of an element differ in the number of neutrons.
Explanation:
Isotopes are atoms of the same chemical element, and therefore with the same number of protons, in which the number of neutrons in the atom core differs. According to current models, an atom consists of an atomic nucleus surrounded by a cloud of electrons. The core consists of a number of protons and a number of neutrons. The number of protons determines the atomic number of the element and also the chemical properties. The number of neutrons determines, among other things, the stability of the nucleus and, together with the number of protons, the atomic mass. Two atoms with the same number of protons but a different number of neutrons are called two isotopes of the same element.
The hypothesis is a claim or prediction. <u><em>If </em></u><em>in Petri plates, contaminated with Penicillium notatum, bacteria are dead, </em><u><em>then</em></u><em> the fungus must be inhibiting bacteria growth and killing the existing ones. </em>
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A hypothesis is a conjecture. A researcher hypothesizes to predict what is going on or what is expected to occur. The hypothesis is a claim of how it works a relation between two or more variables. Usually, it is written in the present time.
According to Fleming's experiment and his accident in the lab, we can postulate the following hypothesis.
<u><em>IF </em></u><em>in </em><em>Petri plates</em><em>, contaminated with </em><em>Penicillium notatum</em><em>, </em><em>bacteria </em><em>are dead, </em><u><em>THEN</em></u><em> the f</em><em>ungus</em><em> must be </em><em>inhibiting</em><em> bacteria </em><em>growth</em><em> and </em><em>killing</em><em> the existing ones. </em>
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Fleming observed that in plates where the fungus was growing, there were no bacteria. <em>He compared these plates with the other ones with no fungi and saw that on the other plates bacteria were still alive</em>. So he assumed that <em>Penicillium notatum</em> was causing the death of bacteria and inhibiting their growth.
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Related link: brainly.com/question/17646895?referrer=searchResults
The mRNA sequence GGU AGC CGG encodes the amino acid sequence Gly-Ser-Arg (Option A).
<h3>What is the genetic code?</h3>
The genetic code makes reference to the linear order of DNA/RNA nucleotides in codons that specify different amino acids.
The genetic code starts in DNA to be transcribed to mRNA and finally translated into protein sequences.
In conclusion, the mRNA sequence GGU AGC CGG encodes the amino acid sequence Gly-Ser-Arg (Option A).
Learn more about the genetic code here:
brainly.com/question/16914106
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Ginkgo, Gnetales, Cycads, and conifers.
The correct answer to your question would be A. Organelle hope this helps let me know.