Answer:
Explanation:
- Oceanic Plate
- Subduction Zone
- Convection Currents
- Asthenosphere
- Continental Plate
The Oceanic Plate is located near the ocean ridge. Which represents where magma creates new oceanic crust.
The Subduction Zone is where the tectonic plates meet. These are called plate boundaries.
Convection Currents are what drives the movement of rigid tectonic plates in Earth's molten mantle.
The Asthenosphere is the upper layer of the mantle. Which is below the lithosphere (Continental Plates).
Continental Plates are the outer shell of the mantle.
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I think it’s money sorry if I’m wrong
Answer:
Objects able to block all the light are called opaque and will form a shadow. ... The closer an object is to the light source, the larger the shadow it casts. This is because an object closer to the source will block a larger area of the light, increasing its shadow size.
Explanation:
Answer:
a. + glucose, + lactose = On
b. - glucose, - lactose = Off
c. + glucose, - lactose = Off
d. - glucose, + lactose = On
Explanation:
Lac operon has both types of control, repressible and inducible.
Whenever glucose level is low in the cell, an enzyme known as adenylyl cyclase raises the level of cAMP which forms a dimer with CRP protein and they both act as activator of lac operon and cause expression.
Apart from this, when lactose is present in the cell, β-galactosidase enzyme metabolizes lactose to form allolactose which causes allosteric repulsion in the lac repressor and causes its removal from the operator. As soon as repressor is removed lac operon gets activated.
In wild type lac operons, the expression of lac operon occurs when glucose level is low in the cell and lactose is present but in this mutant presence or absence of glucose will not make a difference because CRP will bind Plac promoter independent of cAMP level i.e. activator CRP will work even in high glucose concentration. If lactose is present then lac operon will always express so in option 'a & d' lac operon will express but in option 'b & c' it will not express.
