The substance that helps keep the integrity of the bacterial cell wall intact is known as the peptidoglycan. Others also refer to is it as murein or mucopeptide. The bacterial cell wall is necessary for survival because of the high internal pressure present inside of bacteria. Under normal conditions, if the cell wall is removed the bacterial cell will burst.
The peptidoglycan is a layer that can be used to distinguish gram positive bacteria from gram negative ones. G(+) bacteria have a thick layer of this while G(-) have a thinner ones.
Answer:
AT and GC are DNA base pairing
Explanation:
When the dsDNA copies are then inserted into vectors and cloned into E. coli. the scientist has produced a cDNA library.
A collection of DNA fragments that have been cloned into vectors to identify and isolate desired DNA fragments is known as the DNA library. cDNA libraries and genomic libraries are the two types of libraries.
cDNA (Complementary DNA )library: cDNA is a DNA copy of an mRNA molecule that is produced by reverse transcriptase, a DNA polymerase that can use RNA or DNA as its template.
- These are made by using mRNA as their starting material as templates.
- They only represent genes in the genome that are expressed under particular conditions.
- Because cDNA lacks introns, prokaryotic cells can express it.
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An increase in the number of solar wind parties
Answer:
The cranium
Explanation:
The cranium is the upper part of the skull that is made up of eight bones that do not move, which serves as protection for the delicate brain structure in humans. The cranium bones are named according to the area of the brain they serve as protection to these are: the sphenoid bone, the ethmoid bone, the occipital bone, the two temporal bones, the frontal bone, and the two parietal bones, making eight in number.
The occipital bone protects the occipital lobe; the parietal bones protects the parietal lobe of the brain; and the frontal bone protects the frontal lobe of the brain.
