In recent times, it has been shown that adult cells can be induced to become embryonic stem cells also
called "induced pluripotent stem cells" (iPS). To make this conversion, what has been done to the adult
cells? The nucleus of an embryonic stem cell is used to replace the nucleus of an adult cell.
a- cytoplasm from embryonic stem cells is injected into the adult cells.
b- The nucleus of an embryonic stem cell is used to replace the nucleus of an adult cell.
C. The adult cells must be fused with embryonic stem cells.
d- New genes are added to the adult cell to convert it to an embryonic stem cell.
bacteria.
A new drug called Transacter has been developed to prevent protein translation in bacteria.
Which catalyst does the drug inhibit?
a- Helicase
b- RNA polymerase
C- DNA Polymerase
d- Ribosome
RNA processing
a- A primary transcript in eukaryotic cells can have long stretches of noncoding RNA.
b- Exons are cut out before mRNA leaves the nucleus.
C- Prokaryotic cells and eukaryotic cells do RNA processing

the transfer of energy between two molecules spaced just nanometers apart plays a key role in many technologies, including photovoltaics, quantum information systems, lighting, and sensors, as well as in biophysics to measure nanometer distances and in photosynthesis. but an open question in this area is what effect, if any, the surrounding photonic environment has on this nanoscale energy transfer. by designing and performing a carefully controlled experiment to answer this question, scientists have settled the debate and found clues to improving the efficiency of many of the technologies that rely on this process.

explanation:

hey bro i looked it up on google the structure of the eye-spot in euglena viridie, e. ehrenbergii, and phacus pyriyorme is not as franzé haa described it. the so-called “crystal body” and “lens bodies” were not found in any of the individuals of the species examined by me. as earlier observers have stated, the eye-spot consists simply of a mass of pigment granules arranged in a single layer, and probably embedded in a protoplasmic framework, but the latter could not be seen, and its presence was only inferred from the fact that the pigment granules must be held together in some way, thd the eye-spot as a whole is capable of expansion, and that the pigment granules can be separated from each other.

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