Answer:
a semipermeable membrane
Explanation:
This is the same as the plasma membrane, this describes the semipermeable membrane that surrounds the cytoplasm of a cell.
The right answer is A.
Storing and transmitting the genetic information is the role of the DNA.
Proteins are biological macromolecules found in all living cells. They are formed of one or more polypeptide chains. Each of these chains consists of the sequence of amino acid residues linked together by peptide bonds. They can have multiple roles depending on their structure and composition
1- Maintenance of oncotic pressure
2- Buffer role
3- Transport function
4- Enzymes and Coenzymes
5- Role in coagulation and fibrinolysis
6- Role in immunity and allergy
7- Role in inflammation
8- Hormonal role
Answer: A wind vane measures air pressure and an anemometer measures humidity of wind. A wind vane measures wind speed and an anemometer measures wind direction. A wind vane measures wind direction and an anemometer measures wind speed.
Explanation:
The type of mutation which is observed here is substitution mutation. According to the fact that sickle cell anaemia is occuring at the at beta-globin gene, the correct answer is c.substitution mutation as it shows mutation point as <span>a single base. Hope it will help! Regards.</span>
Answer:
Emission
Explanation:
Semen contains sperm and the secretions released by the accessory sex glands such as seminal vesicle and prostate gland. Before the ejaculation of semen, the muscles of the epididymis, ductus deferens, seminal vesicles, ejaculatory ducts, and prostate gland exhibit peristalsis. This results in the release of the secretions from the accessory glands and reproductive duct into the urethra. Since semen is present in the urethra, a small volume of semen is discharged even before ejaculation during emission.