The correct answer is polar cell.
Polar cell is termed as the transport of heat to polar latitudes from tropical to be accomplished.
Examples of cells which are found in the hemisphere include ferrel cells, polar cells, and Hadley cells.
Convection cell is termed as a phenomenon which is known to occur when there is a difference of density in the body of gas or liquid.
The difference occurs when there is rising and falling of currents. Any fluid from conventional cell can be formed. For example in the earth atmosphere.
Ans.
Chromatin molecules are made up of DNA and histone proteins. Modification of chromatin structure include covalent, post-translational changes in histone proteins, present in chromation. Acetylation and methylation are two important histone modifications that affect structure of chromatin molecules.
Acetylation involves addition of an acetyl group to histones that increases transcription of DNA by loosen the association between DNA and nucleosome.
Methylation involves addition of a methyl group to histones that results in condensation of chromatin molecule and thus, decreases transcription of DNA.
Both acetylation and methylation are reversible processes.
Many chromatin modifications are genetic, means they can pass from one generation to another generation, called epigenetic modifications.
Thus, options B), C), D), E), and F).
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:
Damaged the marine organisms.
Explanation:
The oil released offshore causes damaged to the organisms lives at that region of water because oil is a non-polar solvent which spreads on the sea flood can adversely affected the fish and other aquatic organisms. The resources which are available to the organisms are decreases which leads to lowers the growth of aquatic animals as well as adversely affected the marine ecosystem near or around the sea shore.
Answer:
The correct answer is - nitrogenous bases in mRNA, a sequence of amino acids.
Explanation:
The translation is one of the two-stage events in protein synthesis. Protein synthesis is the process in which protein or polypeptide chains are synthesized by the DNA.
The translation process is similar to a smartphone app converts spoken English into Spanish as it involves the translation of the sequence of nitrogenous bases in mRNA molecules to the polypeptide or sequence of the amino acids.
Thus, the correct answer is -nitrogenous bases in mRNA, a sequence of amino acids.
