Which molecules is formed by the Calving Cycle, and is also an intermediate in t

Question

Which molecules is formed by the Calving Cycle, and is also an intermediate in the Glycolysis pathway? Rubisco Glyceraldehyde-3-phosphate (G3P) Glucose Pyruvate Acetyl-CcA Given the DNA sequence 5' - A C T G C T A C - 3', which best represents the complementary RNA? 5' U G A C G A U G 3' 3' G U A G C A G U 5' 5' G T A G C A G T 3' 5' G A G T C A U G C 5' 5'G U A G C A G U 3' What is the effect of a mutation that changes the sequence in a promoter? There is no change in cell behavior, this is a silent mutation This is a frameshift mutation; all downstream codons will be incorrect A single amino acid will be decoded incorrectly This will lead to increased mRNA and protein degradation This will likely change the amount of transcription that occurs at this gene How does miRNA participate in gene regulation? miRNAs do not participate in gene regulation. miRNAs cause protein ubiquintination miRNAs create viral RNA and cause infection miRNAs act as enzymes in the glycolysis pathway miRNA is complementary to an mRNA, and binding blocks translation

Explanation / Answer

Which molecule formed by calvin cycle,and is also an intermeadiate in the glycolysis pathway

- Glyceraldehyde-3-phosphate ( G3P)

Given the DNA sequence 5' - A C T G C T A C - 3', which best represents the complementarity RNA?

- 5'- G U A G C A G U - 3'

Complememtarity is achevied by the distinct interactions with the nucleobases adenine, thymine (uracil in RNA), cytosine and guanine. Adenine and guanine are purines while cytosine, thymine and uracil are pyrimidines. Purines are larger than pyrimidines. Both are complememnt each other and can only base pair with the opposing type of nucleobase. These are held together by hydrogen bonding. A and T (U in RNA) forms two hydrogen bonds while G and C forms three hydrogen bonds.

What is the effect of mutations that change sthe sequence in a promotor?

- This will likely change the amount of transcription that occurs at this gene

The promotor sequence contains the binding motifs for the ploymerase and for additional transcription factors or repressor. When these motifs are affected then the trascriptional activity will also be affected. The introns may contain sequence which can bind with the trancriptional enhances or silencers.

so mutations in this regions an affect the transcription.

How does mRNA participate in gene regulation?

- mRNA is complementary to mRNA, and binding blocks translation.

The process of gene expression involves two steps:

Transcription: the production of mRNA by the enzyme RNA polymerase

Translation: the use of mRNA in protein synthesis

Its activity can be regulated by introns, which are the portion of the gene that donot code for amino acids and are removed from the mRNA molecule before translation.

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