A neuron is a nervous system cell specialized in the communication and information processing between the nervous system and the various organs. It is present under different structures (multipolar, unipolar, bipolar ...).It consists of three main parts:
*A cell body also called soma, it is composed of the cytoplasm and the nucleus of the cell that contains the DNA to encode the proteins necessary for the function of the neuron.
*Tree extensions that are also called dendrites, its role is to receive information.
*A single axon with the ability to route information to other cells.
6. When a mutation causes a genotype change in offspring, the mutation most likely occurred in which type of cell
from the parent?
Gamete
Answer:
2 4 6 8 yeet
Explanation:
the explanation is unclear
Answer:
The main function of the RB protein is to inhibit the transition from the G1 to S phase. Its activity depends on its phosphorylation state: if RB is not phosphorylated (active state), it is bound to the transcription factor E2F, preventing its translocation to the nucleus and the activation of genes necessary for DNA synthesis; and if it is phosphorylated, by cyclin-CDK complexes, E2F is released and cell proliferation occurs.
Explanation:
Retinoblastoma (Rb) was the first tumor suppressor described and, as we know today, mutations in its structure determine a large number of cancers. Structurally, we speak of a large and multifunctional protein; which is organized in different domains. The activity of this protein is regulated, mainly, by phosphorylation at multiple sites described over the years and is involved in control mechanisms of the cell cycle, apoptosis and senescence.
