Cancer cells can form in practically any area of the body, but the main feature that unites all cancer cells is that they divide and replicate without end, until large tumors form.
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.
The cuticle is the most exterior layer of arthropods' tegument, and its principal function is to protect the body and avoid dehydration. Option C is correct. Cuticle.
<h3>
What is the cuticle?</h3>
The cuticle is the most exterior layer of arthropods' tegument. It is secreted by the epidermis and develops right over it.
It is composed of two main layers,
- epicuticle ⇒ outermost layer
The cuticle is mainly made of chitin, and its function is to protect the organism's body and avoid dehydration.
Because it avoids dehydration it is believed that arthropods had such an evolutive and adaptative successful in their transition from water to the land.
The cuticle also provides support to the body and a muscle attachment surface.
The correct option is C. Cuticle
A _<u>Cuticle</u>_ is a hard outside covering that is used for protection and prevents the inner body area from drying out.
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Bachiko congratulated her staff when the team received an industry award for their project, and also sent a companywide e-mail announcing it. here, Bachiko is using her <u>personalized</u> power.
In the example above, Bachiko is using his power. Personalized power is the power in which a person has a superiority complex and thinks that he is superior to others. Also, he made sure that people knew that he was someone else's boss.
The sources of management power are as follows:
Positional power
- strength because of the award/prize.
- power because you have a certain authority.
- power because of the punishment given.
Personal power
- power because you have certain knowledge and abilities.
- power because of your attractive personality.
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Answer:
Alloy is a mixture made up of iron &nickel.
