The ribosomal RNA studies that led to the division of prokaryotic organisms into the bacteria and the archaea were begun by Woese.
Ribosomal RNA makes the maximum portion of RNA in the cells. However, it is not translated into proteins. But it plays a major role in the translation of m-RNA. They are responsible for deducing the order of the amino acid sequence and linking the amino acids together to form the polypeptide.
Archaea are a group of organisms that are similar to bacteria, yet have evolutionary differences. They are found in extreme locations like hot spring, salty water bodies, or areas where methane if formed. Therefore, they are also known as extremophiles.
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Whch of the following describes an organism that lacks linear chromosomes but has peptidoglycan cell walls? multiple choice
A. bacteria
B. eukarya
C. archaea
An iris diaphragm is a set of overlapping metal plates that expand out to allow more light or fold in on each other to reduce the amount of light.
A. true
B. false
It is true that an iris diaphragm is a set of overlapping metal plates that expand out to allow more light or fold in on each other to reduce the amount of light.
What is Iris Diaphragm?Iris Diaphragm is an adjustable diaphragm of thin opaque plates that can change the diameter of a central opening usually to regulate the aperture of a lens. It is an adjustable shutter that allows us to adjust the amount of light passing through the condenser.
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An advantageous mutation is more likely to get fixed in a population through genetic drift than is a deleterious mutation. true/ false
False: an advantageous mutation can get fixed in a population through genetic drift than a deleterious mutation.
A mutation is a change in the sequence of DNA of an organism. It can be a result of errors in the replication of DNA during cell division, exposure to mutagens, or any infection.
Genetic drift: The fluctuations in the number of variations in genes of a population are called genetic drift. It takes place when the occurrence of variant forms of a gene, called alleles. Which increases or decreases by chance over time.
Deleterious mutation: An alteration of genetic material that increases an individual's susceptibility to a certain disease or disorder. In this mutation, the protein product of a gene is not produced, and if it is produced it does not function, or if produced it interferes with normal function.
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Creating a formula by _____ to the specific cells that are to be part of the formula is more accurate than typing the cell references.
Creating a formula by pointing to the specific cells that are to be part of the formula is more accurate than typing the cell references.
This is further explained below.
What are cell references?Generally, When working with Excel, you may refer to the value of a separate cell or cell range on the same worksheet or on a different worksheet inside the same spreadsheet by using something called a cell reference.
In a formula, a cell reference may stand in for a variable if the need arises.
In conclusion, Rather than manually putting in the cell references, it is more accurate to create a formula by pointing to the individual cells that need to be included in the formula.
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