Answer:
p53 or Tumor protein (TP53 ) is the Guardian of genome. located on locus 17p13.1 on chromosomes
It is the gene that regulates the protein that codes for process of <u>cell cycle </u>of ( mitosis and meiosis)' and <u>cell death</u> <u> therefore suppresses the uncontrollable cells growth which can lead to tumo</u>r.
TP53 has relatively high molecular mass of 53 kilodalton fractions in the cell ; this characteristics together with the ability to conserve cell cycle stability in multicellular organism by stopping mutation of genetic materials by suppressing tumor made it to be called the Guardian of genome.
<u>ROLES</u>
→ p53 functions by arresting the growth of cells to stop uncontrolled growth.
←it also repair damage DNA to guide against mutation, by activation of protein involved in DNA repair.
and
←Promotes death of the cells (Apoptosis,) so that damaged or altered DNA would not be transcript and translated in the cell.
Answer:
Explanation:
Idk Srry just need points
Light intensity, wind, temperature, humidity
Answer:
ai) P= Red blood cell Q= Alveoli
ii)1. It gives the lungs a large surface area to volume ratio.
2. It is moist and thin.
b) P has a disc or biconcave shape which allows the O2 to bind to it with the help of a protein called haemoglobin for it to be transferred to various parts of the body.
c) Carbon monoxide will bind to the haemoglobin to form carboxyhaemoglobin causing oxygen disruption
A- DNA is a double stranded molecule :)