Answer/Explanation:
EGFR stands for epidermal growth factor receptor. It is a transmembrane protein acting as a tyrosine kinase receptor for epidermal growth factor ligands, which are associated with promoting cell division and proliferation. When epidermal growth factor binds to the receptor, it becomes activated and undergoes dimerization and autophosphorylation.
A mutation could occur making the receptor overactive. That is, it does not require ligand binding to become activated, meaning it is always in an "on" state. This would lead to uncontrolled proliferation, a hallmark of cancer.
During meiosis I, homologous chromosomes line up side by side and may shuffle genetic material between themselves.
<h3>What is Meiosis?</h3>
- In sexually reproducing organisms, meiosis is a unique type of cell division of germ cells that results in the production of gametes, such as sperm or egg cells.
- Two rounds of division are necessary, and the end product is four cells with just one copy of each chromosome.
- Prophase I, Metaphase I, Anaphase I, and Telophase I are the four phases that make up Meiosis I.
- It deactivates the sporophytic information while activating the genetic information for the production of sex cells.
- By halving the same, it keeps the chromosomal count constant.
<h3>What is chromosome?</h3>
- A chromosome is a lengthy DNA molecule that contains all or a portion of an organism's genetic code.
- Histones, which serve as packing proteins for the majority of eukaryotic chromosomes, work with chaperone proteins to attach to and condense the DNA molecule in order to preserve the integrity of the molecule.
Learn more about Meiosis here:
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Answer:
The options are
A. Delta
B. Watershed
C. River
D. Lake
The CORRECT ANSWER IS A
A. Delta
Explanation:
Delta fan is a low lying vegetation that consists majorly of stream –the river accumulates borne sediments at its mouth. It occurs when a river flows to a body of standing water, taking with it soil and minerals as it flows into the body of standing water to form a fan shape or triangle as seen in the attached image.
Condensation is the formation of clouds.
