The answer to your question is B.Chromatin
Answer:
A. The earth orbiting the moon (false)
B. Earth revolving around the sun (true)
C. The sun revolving around the earth (false)
D. The moon orbiting the earth (true)
E. The moon revolving around the earth (true)
F. The earth orbiting the sun (true)
<h3>sorry if I'm wrong anyways</h3>
Answer:
T cells are born from hematopoietic stem cells, found in the bone marrow. Developing T cells then migrate to the thymus gland to develop (or mature). T cells derive their name from the thymus.
Explanation:
Answer:
READ THIS
Explanation:
To understand how gene expression is regulated, we must first understand how a gene codes for a functional protein in a cell. The process occurs in both prokaryotic and eukaryotic cells, just in slightly different manners.
Prokaryotic organisms are single-celled organisms that lack a cell nucleus, and their DNA therefore floats freely in the cell cytoplasm. To synthesize a protein, the processes of transcription and translation occur almost simultaneously. When the resulting protein is no longer needed, transcription stops. As a result, the primary method to control what type of protein and how much of each protein is expressed in a prokaryotic cell is the regulation of DNA transcription. All of the subsequent steps occur automatically. When more protein is required, more transcription occurs. Therefore, in prokaryotic cells, the control of gene expression is mostly at the transcriptional level.
Eukaryotic cells, in contrast, have intracellular organelles that add to their complexity. In eukaryotic cells, the DNA is contained inside the cell’s nucleus and there it is transcribed into RNA. The newly synthesized RNA is then transported out of the nucleus into the cytoplasm, where ribosomes translate the RNA into protein. The processes of transcription and translation are physically separated by the nuclear membrane; transcription occurs only within the nucleus, and translation occurs only outside the nucleus in the cytoplasm. The regulation of gene expression can occur at all stages of the process (Figure 1). Regulation may occur when the DNA is uncoiled and loosened from nucleosomes to bind transcription factors (epigenetic level), when the RNA is transcribed (transcriptional level), when the RNA is processed and exported to the cytoplasm after it is transcribed (post-transcriptional level), when the RNA is translated into protein (translational level), or after the protein has been made (post-translational level).
Genetically modified organisms are those organisms in which certain gene is inserted to get the desired beneficial results.
Explanation:
A genetically modified organism is an organism or plant altered for beneficial traits which would not have been possible by the traditional mating process or recombination techniques.
Genetic engineering is the technique involved for the construction of gene of interest and inserting them in the host species for getting expressed.
Many fruitful results have come out like a tomato of long shelf life k/a flavr savr.
Apart from molecular techniques used for cloning, CRISPR is the recent innovation which had made it very simple.
The GMOs can solve the food problem of the world as Single-cell proteins and longer shelved life food.
Disease resistant plants can be formed for better yields.
Nutrition level of food can be increased.
Example of GMO are canola, corn, papaya, soy and many animals are also on the list.
