MRNA is the RNA that assists in Messaging the DNAs instructions to the ribosomes (sites of protein synthesis). tRNA helps to transfer the necessary amino acids to the ribosomes. In short, mRNA tells the ribosomes what amino acids to use and in what order. tRNA “retrieves” those and bring later them to the ribosomes.
Answer:
False
,As fluids speed increases air pressure decreases
Explanation:
See the image for explaination.
Answer: C. Cohesion and Adhesion.
This must be a Choice question but the choices are not there so the only thing I can do is send you the four major ones and you can pick which one is not the major one for your question hope this helps don't worry about sending points I don't work care about him
What are the four major points of Darwin's theory of natural selection?
1. Overproduction - more offspring are born than survive
2. Genetic Variation - there is variation in the population
3. Struggle to Survive - organisms with suitable variations will survive and reproduce
4. Differential Reproduction - suitable variations are passed on to offspring
Answer:
Explanation:
An epitope (antigen determinants) is the part of an antigen that interacts with antibodies.
Epitopes bind to antibody molecules via T-cell receptors in a region known as complementarity determining region (CDR) and the Major histocompatibility complex (MHC) participates in this by forming complexes with peptides. The MHC helps the T-cell to recognise epitopes of antigens and discriminate self from non-self.
The MHC, T-cell works together to bring about the binding of epitopes to antibody molecules.
The main function of MHC molecules is to bind to antigens derived from pathogens and display them on the cell surface for recognition by the appropriate T-cells.
It should be noted that the amino acid sequence of the CDR determines the shape of the binding sites of the T-cell and the antibody that can be bound by an epitope.
The consequences of the interactions are;
1. MHC-peptide complex helps T-cell receptors bind to epitopes and thus antibodies
2. The shape of the binding sites (CDR) determines the antibodies that can be attacked any abnormalities at this point will affect the adaptive immune system.
