Answer
Thermoregulation
Blood clotting
Regulating blood sugar
Explanation:
Negative feedback loop reduces excessive function..
Cooling the body when it's hot.
Reducing blood sugar when it's too much.
Clotting blood to stop excessive bleeding.
Contractions during childbirth is a positive feedback.
The shrinking of a plant cell membrane away from the cell wall when placed in a hypertonic solution is called a plasmolysis... I don't know if that can be of any help :)
The correct answer is: b. It is free to bind to another promoter and begin transcription
Transcription is the first step of gene expression in which DNA molecule is copied (transcribed) into RNA (mRNA) by RNA polymerase. The process of transcription is divided into three phases:
1. Initiation
• RNA polymerase with transcriptional factors bind to gene promoter
• RNA polymerase unwinds DNA double helix (transcription bubble is formed)
2. Elongation
• RNA polymerases adds nucleotides complementary to DNA
3. Termination
• RNA polymerase gets to stop codon (transcribes a sequence of DNA known as a terminator)
• Formed complementary RNA strand is released from DNA-RNA complex.
RNA polymerase is also released and can transcribe some other gene by binding to its promotor. RNA polymerase will transcribe just the genes whose products are needed at a particular moment.
Nucleus.
Genetic material.
A plasma membrane.
Ribosomes.
Cytoplasm, including the cytoskeleton.
Doctors try to remove tumors from the body to prevent it from spreading and affecting other parts of the body.
