Answer:
C
Explanation:
If you drop something on the ground and watch it fall, you are observing gravity at work, so A is not an option. All data proves this law exists, so B is not an option, and it will not continue to change, as it never has changed, so it is not D.
Nuclear import receptors (karyopherin) proteins bind to nuclear localization signals on newly synthesized proteins.
- DNA is contained by the nuclear envelope, which also establishes the nuclear compartment.
- Nuclear pore complexes can pass across the two concentric membranes that make up this envelope.
- Despite being one continuous membrane, the inner and outer nuclear membranes still have different protein compositions.
- A subfamily of transport receptors known as karyopherins collectively mediates nuclear transport of proteins and RNA through the nuclear pore complex.
- Karyopherins recognize certain nuclear localization or nuclear export signals to attach to their payloads.
- Transient interactions between the karyopherins and the nuclear pore complex enhance transport via the complex.
learn more about Nuclear import receptors here: brainly.com/question/14611798
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Answer:
Fats & steroids are both lipids & are both hydrophobic.
Explanation:
Fats store energy for molecules & steroids function as a messenger around the cell membrane. hope this helps you :)
The answer is D. It <span>keeps outside substances away from the receptor cells</span>