first step
A copy is made of one side of the DNA segment where a particular gene is located. This copy is transferred to the cytoplasm.
second step?
This mirror like copy of a DNA segment is called messenger RNA (mRNA)
third step?
Each group of three bases on the mRNA segment codes for one amino acid.
fourth step?
The mRNA segment is fed through the ribosome.
fifth step?
Molecules of transfer RNA (tRNA) deliver amino acids from the cytoplasm to the ribosome.
sixth step?
The amino acids are dropped off at the ribosome.
seventh step?
The amino acids are joined to make a protein. Usually, one protein is produced for each gene.
Answer:
The correct answer will be-
1. Nucleosomes
2. Chromatin
3. Sister chroamtid
4. Centromere
Explanation:
The DNA is a very long molecule which if has to be passed on to the daughter cell as it is will cause problems. So, to reduce problems a cell form tightly packed structure of DNA so that they can be passed easily to the daughter cell.
The packaging of DNA begins with the wrapping of the DNA around histone proteins which forms the 11 nm basic structural units called nucleosomes. The nucleosomes start condensing each other and form 30 nm structure chromatin fibres.
The chromatin fibres undergo replication during S phase which produces an exact copy of the chromatin called sister chromatids bound to each other at a central point called centromere which helps the separation of the chromatids during M phase.
Answer:
Some benefits of plastic are that plastic packaging helps protect and preserve goods, while reducing weight in transportation, which saves fuel, reduces greenhouse gas emissions and are low in cost.
Some disadvantages are that toxic chemicals can leach out of plastic and can be found in the blood and tissue of nearly all of us. Exposure to them is linked to cancers, birth defects, impaired immunity, endocrine disruption and other ailments
Answer:
Thymine, which is often abbreviated to T or Thy, can also be referred to as 5-methyluracil. It is one of the pyrimidine bases found in the nucleic acid of DNA, along with adenine, guanine and cytosine (A, G and C). These bases are the building blocks of DNA and life form on earth.
Explanation:
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