Hydrogen because it only has one valence electron I believe.
Answer:
Negatively repressible.
Explanation:
A control which occurs through repressor is known as negative control which may be inducible or repressible.
When a small molecule named as allolactose binds this repressor it leads to allosteric repulsion which removes repressor from the operator as a result of which RNA polymerase can start transcription. Allolactose is therefore known as inducer because it induces lac operon expression.
But here, the operator is active (induced) already so there is no need to induce the operon which means that it can only be repressed so that transcription could stop. So the answer is negatively repressible operon.
Answer:
Explained below.
Explanation:
At least three forms of force when dropping a ball on the ground are gravitational force, air resistance force and the buoyancy force as well.
→ Gravitational force is a type of force that is acting while the ball is dropping, that is the downward force which is attracting the ball towards the centre of the surface of the earth.
→ Air resistance force is the upward force that will be acting while the ball is dropping on the ground.
→ The buoyancy force is the type of force that will act when the ball will touch the ground, then due to buoyancy force, the ball will bounce.
Photosynthesis
Photosynthesis is the production of ATP through the conversion of energy from sunlight using chlorophyll.
Chlorophyl is found in plants, and plants use sunlight to make energy.
That energy is in the form of ATP.
Answer:
The correct answer is option C. "2+".
Explanation:
A common procedure to test for the presence of antigens is to perform an agglutination reaction by performing an antibody screen. In an agglutination reaction that is graded 2+ the red blood cells start to be broken and medium-sized agglutinates are formed. In this reaction no red blood cells are free, only agglutinates are seen at the bottom of the microtubes. The characteristics of the reaction herein described concur with an agglutination reaction that is graded 2+.
