Which phrase best describes a gene?
(1) a segment of a DNA molecule found only in
the body cells of an organism
(2) a segment of a DNA molecule found only in
the gametes of an organism
(3) a segment of a DNA molecule that contains
the instructions for producing a trait in an
organism
(4) a segment of a DNA molecule that contains
the instructions for producing all the
characteristics of an organism
A they belong to the same group on the periodic table
Answer:
Quorum Sensing
<h2>What is quorum sensing?</h2>
This is how bacteria <em>"communicate" </em>with one another.
A tiny quorum molecule will be secreted by each individual bacteria in a set quantity. They can each determine how many other bacteria of the same sort are nearby based on the quantity of this chemical around them.
When the quorum molecule reaches a certain mass and a specific threshold, it triggers some type of shift in gene transcription that leads the bacteria to behave differently (they all do it because they are all exposed to a high enough concentration of the quorum molecule).
Scientist are able to choose genes to give to animals.
Hello!
A polar molecule is where one of the atoms in a molecule has a slight positive charge, and another has a slight negative charge, due to the unequal sharing of electrons.
Water is one of these molecules - the electrons spend more time around the oxygen atom in the center, and less around the hydrogens, so the hydrogen atoms have a slight positive charge, and the oxygen a slight negative.
Therefore, your answer is B, water has a slight negative and a slight positive charge at opposite poles.
Hope this helps!