When mRNA exits the nucleus, it travels to a ribosome, which is made up of proteins and rRNA. The ribosome reads the mRNA's codon sequence. The correct sequence of amino acids is delivered to the ribosome by tRNA molecules. A ribosome is responsible for translating the codons in mRNA into a chain of amino acids.
Initiation, elongation, and termination are the three main stages of translation. The small subunit and the big subunit are two distinct subunits that make up the ribosome. The tiny subunit binds to the mRNA's 5' end during initiation.
Then it shifts in a 5' x 3' direction. The TR when RNA that has an amino acid linked to it binds to the mRNA. They participate in translation because they are molecules that are involved in protein synthesis, which is translation. And those molecules that link the minor assets Holden's RNA from M. with. The mRNA is now bound to the tRNA by antipodean.
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Answer:
Genetic drift
Explanation:
Genetic drift can also be referred to as allelic drift, it refers to the variation in allelic frequencies within a particular population over a period of time. It can also be referred to as the random fluctuations in the number of genotypes within a population. Genetic drift is not influenced by the environment and is usually more pronounced in a small population of organisms.
For example, a population of birds can consist of green feathers and blue feathers with the green feathers as the dominant allele, but as a result of random fluctuations, the offspring may all be with green feathers and hence could eliminate or reduce the allele responsible for blue feathers over time.
Answer:
Calcium voltage gated ion channels
Explanation:
There are two types of ion channels involved in the neuromuscular junction and end plate potentials: voltage-gated ion channel (responsive to changes in membrane voltage which cause the voltage gated ion channel to open) and ligand-gated ion channel (responsive to certain molecules such as neurotransmitters).
The resting membrane potential of a motor neuron goes from -70mV to -50 with a higher concentration of sodium outside and a higher concentration of potassium inside. <em>When an action potential propagates down a nerve and reaches the axon terminal of the motor neuron, the change in membrane voltage causes the calcium voltage gated ion channels to open allowing for an influx of calcium ions. </em>These calcium ions cause the acetylcholine vesicles to release acetylcholine via exocytosis into the synaptic cleft.
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Each enzyme is comprised of covalently linked amino acids...enzymes are proteins
