- Before translation, the introns must be removed from mRNA and the exons spliced together. This is done by spliceosomes, which are made up of snRNAs and:
- The molecular weight of DNA is high, as much as a billion amu. In contrast, the molecular weights of RNA are low, perhaps around 25,000 amu. About 1% of the dry weight of the cell is DNA, and about 5% of the weight is RNA. From these numbers, we can conclude that:
- how many codons would be needed to specify 5 amino acids
- which nitrogenous bas in RNA pairs with adenine (A)
- which nitrogen base in RNA pairs with adenine (A)
- where does translation occur in the prokaryotic cell
- where does transcription occur in the eukaryotic cell
- how many nucleotides (bases) are in a codon
- What would happen to polypeptides and cell function if a valine-tRNA synthase lost its specificity and attached any of the 20 amino acids to the 3' end of the valine tRNA?
- Part of a DNA template strand has the sequence 5'-ATGGTGTACG-3'. What will be the sequence of the RNA transcribed from this DNA?
- When one gene is considered at a time in a genetic cross it is referred to as
- which is bigger: purine or pyrimidine
- Attached to each tRNA is an _______ _______
- if given mRNA you must match it with the tRNA in order to find the
- what is the name of the bond formed between amino acids
- In what phase does DNA replication occur
- How many nucleotides are in a Condon
- some sort of bottleneck effect happens that reduces the size of a population and just by chance eliminates some alleles
- How does one amino acid go in to a condon
- What does the translation look like in a eukaryotic cell