A synthetic mRNA molecule uses only two types of nucleotides, adenine and cytosine. How many different codons could it contain?
Correct answer: C. 8
- A. 4
- B. 16
- C. 8
- D. 64
Explanation
We know that In the genetic code, each codon is made up of three nucleotides. Since the synthetic mRNA molecule you mentioned contains only two types of nucleotides (adenine and cytosine), there are only two possibilities for each position within the codon. Therefore, the number of different codons it could contain is calculated by raising 2 to the power of 3 (since there are three positions in a codon): 2^3 = 8 So, the synthetic mRNA molecule could contain a total of 8 different codons using only adenine and cytosine.
Last updated
About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
Practise Cell Structure and Function
2,478 free Cell Structure and Function MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
1000-2000 Okazaki fragment:
200 nucleotide + 8 histones:
2n= 16 in a primary spermatocyte, which is in the metaphase of first meiotic division. What shall be the total number of chromatids in each of the secondary spermatocytes?
A 10 nucleotide sequence i.e., RNA primer is constructed by:
A cell contains 8 chromosomes in its diploid state.When this cell undergoes meiosis, its daughter cells would contain: