The following ratio is generally constant for a given specie:
Correct answer: C. G + C / A + T
- A. A + G / C + T
- B. T + C / G + A
- C. G + C / A + T
- D. A + C / T + G
Explanation
According to Chargaff's rules:A = T and G = CThe GC content (G + C) and AT content (A + T) vary between species but are constant within a species. So, the ratio (G + C) / (A + T) is generally constant for a given species, making option (c) correct.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Chromosomes questions
When adenine replaces guanine because of a mutation, what name is that mutation given?
During transcription, if the nucleotide sequence of the DNA strand that is being coded is ATACG, then the nucleotide sequence in the mRNA would be:
Which form of RNA has a structure resembling the clover leaf?
What does "lac" refer to in what we call the lac operon ?
Which one of the following triplet codes, is correctly matched with its specificity for an amino acid in protein synthesis or as 'start' or 'stop' codon ?
During transcription, the DNA site at which RNA polymerase binds is called the: