Just So you know, <span>The molecular clock, explains Blair Hedges, is a tool used to calculate the timing of evolutionary events. Instead of measuring seconds, minutes and hours, the molecular clock measures the number of changes.</span>
Sixty six is D and sixty seven is A
Answer:
<h2>NADPH</h2>
Explanation:
Photosynthesis is a biochemical reaction in which glucose is synthesized by green plants and some other green organisms that have chlorophyll molecule. In this reaction carbon dioxide and water are treated as raw materials. This reaction is completed in two steps, in first step water splits by the sunlight and formation of ATP, NADPH and oxygen molecule takes place so-called as a light reaction.
In the second step no light is required and carbon dioxide is reduced by NADPH so-called light-independent reaction. Since in this reaction electron is transferred by NADPH so considered as an electron source in light-independent reaction.
The correct answer is - False.
To trace the correlation between the rock layers by using fossils can be a big mistake, though occasionally it may provide the proper information, still it will be relying on luck.
The case is actually the other way around, the fossils can be correlated by using the rock layers, because each layer of rocks represents some time in the geologic past.
The fossils, on the other hand, are much more easy to be moved through the layers over time, because there can be disturbances, adjustments in the crust, or the rocks can change their composition under the influence of multiple factors. All of that can contribute to the fossils ending up at places where they aren't expected to be, so using them to correlate the rock layers will not be a very useful method.
Answer:
C) The amino acid methionine will not bind.
Explanation:
The tRNA has a nucleotide sequence that varies in length from 73 to 93 nucleotides. The 3' end of the tRNA serves as an amino acid arm. All the tRNA molecules have the trinucleotide sequence CCA at the 3' end. The base "A" is present at the 3' end. The amino acid arm serves to carry a specific amino acid according to the anticodon sequence present in its anticodon arm.
The amino acid is esterified by its carboxyl group to the 2'- or 3'-hydroxyl group of the adenine residue that is present at the 3' end of the tRNA. Therefore, the removal of 3' AC would not allow the tRNA to bind to its corresponding amino acid (here, methionine).
