As per the given problem, there are 999 bases in the RNA that code for 333 amino acids.We know that 1 codon consists of three bases, usually corresponding to a single amino acid.This implies that there are 333 codons which code for 333 amino acids.Now, out of 999 bases, if the base at position 901 is deleted, then the remaining 98 bases corresponding to 33 codons of amino acids will be altered because deletion of base at 901 position causes a frame shift mutation in the remaining 33 codons.

Introduction:
In this scenario, we have an RNA sequence consisting of 999 bases that code for a protein with 333 amino acids. Due to the deletion of a base at position 901, the length of the RNA becomes 998 bases. We need to determine the number of codons that will be altered as a result of this deletion.

Understanding RNA and Codons:
RNA (ribonucleic acid) is a molecule that plays a crucial role in protein synthesis. It is transcribed from DNA and carries the genetic information required for the production of proteins. The sequence of bases in RNA is read in groups of three called codons. Each codon codes for a specific amino acid, which is the building block of proteins.

Calculating the Number of Codons:
To determine the number of codons in the RNA sequence, we need to divide the total number of bases by three since each codon consists of three bases.

Number of codons = Total number of bases / 3

In this case, the total number of bases is 998. Therefore,

Number of codons = 998 / 3 = 332.67

Since the number of codons must be a whole number, we can round down to the nearest whole number. Hence, there are 332 codons in the RNA sequence.

Impact of Base Deletion:
The deletion of a base at position 901 results in a shift in the reading frame of the RNA sequence. This alteration affects all subsequent codons, leading to a change in the amino acid sequence of the protein.

Since one codon corresponds to one amino acid, the deletion of a base will cause a shift in the codons by one position. Therefore, all codons from position 901 onwards will be altered. As a result, the protein's amino acid sequence will also be modified.

Conclusion:
In summary, the deletion of a base at position 901 in an RNA sequence with 999 bases, coding for a protein with 333 amino acids, will alter 332 codons. This deletion causes a shift in the reading frame and affects all codons from position 901 onwards, leading to a change in the amino acid sequence of the protein.

Is it 33