Answer:
RNAs and proteins can bind via electrostatic interactions, hydrophobic interactions, Hydrogen bonding interactions and base stacking interactions
Explanation:
Proteins bind to nucleic acids (i.e., both DNA and RNA) through different types of interactions:
- electrostatic interactions, also known as van der Waals interactions, refer to attractive/repulsive interactions between molecules depending on their electric charges.
- hydrophobic interactions, i.e., interactions between nonpolar molecules and water molecules
- Hydrogen bonding interactions resulting from the interaction between a hydrogen (H) atom that bind to an electronegative atom (e.g., N, O, F, etc), and another electronegative atom.
- base stacking interactions that result from the arrangement of RNA nucleotides
In this case, it is also important to highlight that the interaction will depend on the specific tertiary structure of ribosomal proteins and ribosomal RNAs (rRNAs).
The correct answer is:
Plants close their stomata during times of intense heat or drought in order to prevent water loss and maintain homeostasis.
Explanation:
Guard cells tend to open stomata within the day when there are lots of day and close stomata at night when the sun is not present and photosynthesis is not happening. They will also close stomata if the air is dry or hot, which minimizes water waste indoors evaporation.
An exothermic action releases heat.
The two tiny structures located in the cytoplasm near the nuclear envelope at the beginning of prophase are called <u>centrioles.</u>
Answer:c. Dendrite → cell body → axon hillock → axon
Explanation:a neuron has many cytoplasmic extensions called dendrites.the dentrites enter into the cell body at one end . the cell body also leads to axon at the other end, which extends toward another dentrite.axon hillock connect the axon to the cell body.
Impulses are usually transmitted along the neuron in one direction.
From the dendrites to the cell body,to the axon hillock and then to the axon.
