97. the atomic number is the number of protons in the element
This was a result of a genetic mutation that affects their color. This, in turn, is an effect of natural selection. Nature selects those with favorable traits to survive and reproduce.The mutation is the process that increases the organism's chance of survival.
BE CAREFUL. Here we ask about the nucleolus precisely and not about the nucleus in general, the precise role of the nucleolus is to assemble the ribosomal RNA and the ribosomal proteins to form the ribosomes. So the answer is B.
In cell biology, the nucleolus is the largest nucleus subcompartment of eukaryotic cells. This particular space of the nucleus is not delimited by a membrane, nevertheless some authors consider it as an organelle and others do not. The number of nucleoli can vary during the cell cycle (usually only 1 in G0 phase).
The nucleolus is composed of proteins, DNA and RNA and is formed around particular chromosomal regions called NOR (Nucleolar Organizing Regions).
It is in particular the place where the transcription of the ribosomal RNAs (5.8S, 18S and 28S rRNA), the processing of these ribosomal RNAs from precursors and the first part of the assembly of the two ribosome subunits takes place. with the association of certain ribosomal proteins. The end of the ribosome assembly occurs in the cytoplasm on mRNA after export of pre-ribosomes through the nuclear pore.
Hi,
The answer is A.
"The sensation stage of the erotic stimulus pathway theory is similar to the excitement and orgasm phases of the epor model."
Hope this helps!
r3t40
Answer: Option A
Explanation:
The hypothyroidism can be defined as the condition in which the thyroid hormone is not able to produce thyroid hormones.
The thyroid stimulating hormone is produced by the pituitary gland. This hormone functions by regulating the production of the hormones by the thyroid gland.
If there is an unusual amount of the hormones released by the pituitary gland there will be an abnormal amount of the TSH and TRH. The thyroid stimulating hormones cannot respond to the hormone released from the pituitary.
Hence, the correct answer is Option A.