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Nucleotide ratio in messenger RNA is variable due to differences in gene sequences, alternative splicing events, and post-transcriptional modifications such as mRNA editing. These variations can result in different combinations of nucleotides in mRNA molecules, leading to a diverse nucleotide composition.

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What happens to the contribution ratio when the components change?

The contribution ratio is the relationship between total sales revenue and total variable costs. If the components change, such as an increase in sales revenue or a decrease in variable costs, the contribution ratio will increase. Conversely, if sales revenue decreases or variable costs increase, the contribution ratio will decrease.


Is nucleotide classified as a carbohydrate?

A nucleotide is not classified as a carbohydrate. A nucleotide is a building block of DNA and RNA, which are nucleic acids. Carbohydrates are nutrients that typically are composed of carbon, hydrogen, and oxygen.


What is partial reinforcement?

Partial reinforcement is when an individual is rewarded on some, but not all, trials. There are multiple variants of partial reinforcement (fixed interval, variable interval, fixed ratio) but the schedule that is most likely to have the slowest extinction rate is variable ratio, meaning that after a certain number of trials between two values, a reward will be given. A real life example of this is gambling.


If two graphs have exactly the same shape what can you tell about the variables?

If two graphs have exactly the same shape, it indicates that the variables are proportional to each other. This means that as one variable increases or decreases, the other variable changes in a consistent and fixed ratio.


Describe the biological functions of dUTPase?

The conversion of dUTP to dUMP and PPi occurs by dUTPase activity. This conversion helps the cells to maintain a low dUTP:dTTP ratio as well as providing a substrate (dUMP) for thymidylate synthase. If the ratio is higher, the probability of misincorporation of uracil into DNA increases. Uracil-containing DNA serves as a substrate for UNG. In non-dividing cells, dUTPase levels are lower and would result in an elevated dUTP:dTTP ratio.