Podcast Beta
Questions and Answers
What is the primary function of the 5' cap in mRNA?
What is the purpose of adding a poly(A) tail to the 3' end of mRNA?
In which direction does RNA polymerase read the template DNA strand during transcription?
What is the primary function of transcription in gene expression?
Signup and view all the answers
What is the sequence of events during gene expression?
Signup and view all the answers
What is the primary function of the RNA polymerase enzyme in eukaryotes?
Signup and view all the answers
What is the term for the sequence of nucleotide triplets that specifies amino acids?
Signup and view all the answers
Where does translation occur in a eukaryotic cell?
Signup and view all the answers
What is the term for the process of converting DNA information into protein information?
Signup and view all the answers
What is the function of the primary RNA transcript in eukaryotes?
Signup and view all the answers
What is the primary function of genes in directing biochemical and cellular processes?
Signup and view all the answers
What is the role of miRNA and siRNA in gene expression?
Signup and view all the answers
What is the difference between haemoglobin and lysozyme proteins?
Signup and view all the answers
What is the bridge between DNA and protein synthesis?
Signup and view all the answers
What are the two main processes linking gene to protein?
Signup and view all the answers
What is the primary function of transfer RNA (tRNA) molecules?
Signup and view all the answers
How many different tRNA molecules are involved in linking specific mRNA codons with particular amino acids?
Signup and view all the answers
During translation, what is the role of the ribosome?
Signup and view all the answers
What is the term for the phenomenon where more than one codon sequence codes for the same amino acid?
Signup and view all the answers
What is the name of the process by which the sequence of nucleotides in mRNA is used to specify the sequence of amino acids in a polypeptide?
Signup and view all the answers
What is the primary function of RNA splicing in eukaryotic gene expression?
Signup and view all the answers
What is the effect of a frameshift mutation involving a number of nucleotides that is not a multiple of 3 on the amino acid sequence?
Signup and view all the answers
What is the role of the leader sequence in the mature mRNA?
Signup and view all the answers
What is the function of the poly(A) tail in the mature mRNA?
Signup and view all the answers
What type of mutation is most likely to occur due to errors during DNA replication, repair, or recombination?
Signup and view all the answers
What is the effect of an insertion or deletion of 3 nucleotides on the amino acid sequence?
Signup and view all the answers
What is the purpose of the transcription termination signal in eukaryotic gene expression?
Signup and view all the answers
What is the composition of mammalian haemoglobin?
Signup and view all the answers
What is the role of mutagens in producing mutations?
Signup and view all the answers
What is the consequence of a frameshift mutation on the resulting protein?
Signup and view all the answers
What is the consequence of a silent mutation in a protein-coding DNA sequence?
Signup and view all the answers
What is the term for the replacement of one nucleotide and its partner on the complementary strand with another pair of nucleotides?
Signup and view all the answers
What is the result of a missense mutation in a protein-coding DNA sequence?
Signup and view all the answers
What is the characteristic of the genetic code that allows for silent mutations to occur?
Signup and view all the answers
What is the consequence of an insertion or deletion in a protein-coding DNA sequence?
Signup and view all the answers
What is the term for the process of converting DNA information into protein information?
Signup and view all the answers
What is the role of the codon sequence of the mRNA in protein synthesis?
Signup and view all the answers
What is the result of a base pair substitution in a protein-coding DNA sequence?
Signup and view all the answers
What is the characteristic of the genetic code that ensures its specificity?
Signup and view all the answers
What is the relationship between the codon sequence of the mRNA and the amino acid sequence of the protein?
Signup and view all the answers