DNA is the same in every cell in the body. They all read from the same genetic blueprint, whether they are muscle cells, skin cells, or heart cells.
it is Because they use the same set of genes in different ways, and these cells are different. So despite the fact that every one of our cells has the equivalent of 20,000 or so genes, every cell can choose which ones it needs to "turn on" and which ones it needs to keep "turned off. heart cells have unexpected attributes in comparison to skin cells since heart cells express unexpected genes in comparison to skin cells.
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The forest coverage is changing due to many reasons including deforestation and urbanization.
<h3>What is urbanization?</h3>
The demographic change from rural to urban areas, the concomitant reduction in the percentage of people living in rural areas, and the ways in which communities adapt to this change are all referred to as urbanization.
By trying to remove or fragmenting forest cover, urbanization has a direct impact on forest ecosystems.
Thus, it can be concluded that the changes in the forest coverage has occurred due to deforestation and insufficiency of land.
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The plant tissue that is most likely to store water in the cactus plant is vascular tissue.
<h3>What is vascular tissue?</h3>
Vascular tissue is made up of xylem and phloem.
The main function of vascular tissue is to transport water and minerals to parts of plants.
The vascular tissue in the cactus helps to transport water to the spines.
It also stores water for a long period of time.
Thus, the correct option is vascular tissue.
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Answer:
I will have a greater increase in vasopressin secretion than my friend who donated blood.
Explanation:
Vasopressin, also known as Arginine vasopressin (AVP), Argipressin, or Antidiuretic hormone (ADH), is synthesized in the hypothalamus, and is released from the posterior pituitary gland, into the genreral circulation in response to a hypertonic extracellular fluid concentration. When a person looses a large volume of water from the body, from whatever cause, the blood becomes hypertonic, and the total volume of body fluids reduces (hypertonic, hypovolemic), in response to this change, ADH acts on the cells of the Distal Convoluted Tubule and Collecting Duct of the kidneys to reabsorb water into the blood, hence resulting in the excretion of a more concentrated urine with a reduced volume, this tends to return the tonicity of the blood towards the normal.
In the instances given in this example, when I lost 0.5L of sweat, which contains about 99% water, I loose more body water than my friend who donated blood with a total plasma volume of 0.5L, because plasma contains 92%, which is less volume of water than what I lost.
Answer:
Transcription
Explanation:
This occurs in three steps itself: initiation, elongation, and termination
Initiation (beginning)
- RNA polymers bind to a promoter on a gene
- DNA then unwinds to be "read" by an enzyme
- DNA now ready to make mRNA strand
Elongation (Second step)
- nucleotides are added to mRNA strand
- mRNA molecule is built after RNA polymers reads the DNA that unwound
- adenine (A) in DNA connects to a uracil (U) of RNA while connected to each other
Termination (End)
- RNA will cross a stop sequence in the gene (termination)
- mRNA done and disconnects or detaches from DNA
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