Answer:
1.) Why does menstruation begin?
A.) Period happens because of changes in hormones in the body.
2.) How long does the menstrual cycle usually last?
A.) the menstrual cycle lasts 21 to 35 days while bleeding between 2 to 7 days
<u>-TheUnknownScientist</u>
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.
Answer: Yes
Explanation: In order to go to the right end you must be searched first anyone tells you otherwise.
Answer:
All organic molecules are made up of carbon compounds so we can say that the main atom or molecule is carbon.
hope it helps!
Answer:
The main step to prepare herbarium sheet are:
Collection and pressing of specimens. Fresh materials are pressed in plant press in herbarium press. ...
Drying of specimens. ...
Mounting of specimens on herbarium sheets. ...
Labeling of specimens. ...
