Would a deletion of two base pairs have a greater consequence if it occurred in an intron rather than in an exon?

Q: Why is it that pre-mRNAs are capped, but tRNAs and rRNAs are not?

A: Ribonucleic acid (RNA) is a polymeric molecule important in various biological roles such as…

Q: How many codons would be possible in a triplet code if only three bases (A, C, and U) were used?

A: Codons are the sequences of DNA or RNA containing three nucleotides in a single set that codes for…

Q: Define exon shuffling and explain why its occurrence might be an evolutionary advantage.

A: Gene expression is the process by which the instructions in the DNA are converted into a functional…

Q: Why is a trimming process important in converting precursors of tRNA and rRNA to the active forms?

A: Ribonucleic acid is fundamental in different biological roles in coding, translating, regulation,…

Q: What are cassette exons ?

A: An exon is the portion of a gene that codes for amino acids. In the cells of plants and animals,…

Q: How would pyrimidine dimers from the sun effect replication of this gene sequence?…

A: Pyrimidine dimers are the dimers formed between two pyrimidine molecules. Usually it forms between…

Q: Explain why all transposons include inverted repeats.

A: Transposable elements (TEs) are deoxyribonucleic acid (DNA) sequences that move from one location to…

Q: What are the functions of start and stop codons? Giveexamples.

A: Genetic code is the sequence of nucleotides in deoxyribonucleic acid (DNA) and ribonucleic acid…

Q: Occurrence of each codon on human transcriptome?

A: Replication, transcription , and translation are the three main processes that cells use to preserve…

Q: What is Exons C

A: Exons are nucleotide sequences in DNA and RNA that are conserved in the creation of mature RNA.…

Q: Can exons be non coding?

A: The DNA is the information hub of the cell that contains instructions in the form of genes to…

Q: What is the function of a stop codon?

A: Codon -- A codon is a specific type of genetic code which carries certain type of important…

Q: Define: codon, anticodon, and nonsense codon.

A: The translation is involved in the production of polypeptide chain from the mRNA. The translation…

Q: Why do you expect to encounter a stop codon about every 20 codons or so in a random sequence of DNA?

A: During the translation process, the termination step occurs when the Stop codon in mRNA comes and…

Q: What are the function of exons?

A: Eukaryotic genes are mainly composed of two components - introns and exons. Introns are the…

Q: What would be the likely effect of a mutation that prevents σ from dissociating from the RNA…

A: After the initiation of the transcription, the RNA strand would elongate by the action of RNA…

Q: do introns or 3′ untranslated regions of a gene have higher rates of nucleotide substitution?…

A: Introns are the regions that include non-coding regions of the RNA transcript. The introns are…

Q: How many possible mRNAs could be derived from a gene with three exons (exon 1, exon 2, and exon 3)?…

A: Transcription is a process in which one strand of DNA known as template strand is known as converted…

Q: Compare and contrast exons and introns

A: Introduction - Noncoding regions of an RNA transcript or the DNA encoding it that are spliced off…

Q: What is the function of histones in DNA packiging?

A: The DNA (deoxyribonucleic acid) is a two-fold helical structure with two polynucleotide strands…

Q: What would happen if an intron wasn't taken out before translation? And are there

A: DNA contains many sequences such as promoters, introns and exons. Some sequences in DNA are supposed…

Q: which exons become spliced together?

A: Splicing is the editing of the nascent precursor messenger ribonucleic acid (RNA) called pre-mRNA…

Q: How does the presence of introns aid exon shuffling?

A: Exon shuffling is a mechanism, where two or more exons from different genes brought together,  or…

Q: Are there similarities between the DNA replication bubbles and the transcription bubbles found in…

A: Yes, there are similarities between the DNA replication bubbles and the transcription bubbles found…

Q: Explain how exon shuffling can be due to unequal homologous recombination.

A: Exon shuffling is defined as a molecular process for the arrangement of new genes. It is a cycle…

Q: How many introns are present on a gene that consists of 2 exons?

A: Introns and exons are nucleotide sequences in a gene. Introns can be considered as intervening…

Q: What causes exon shuffling?

A: Exon shuffling is a molecular mechanism for the formation of new genes. It is a process through…

Q: Explain what is meant by stating that the genetic code is triplet and nonoverlapping? What did the…

A: The genetic code may be defined as the exact sequence of DNA nucleotides read as three letter words…

Q: How many exons has the CFTR gene?

A: Introduction :- The CFTR gene encodes a membrane protein and chloride channel in vertebrates called…

Q: What types of mutations occurred in DNA-(b) and DNA-(c)? What codons are found in the mRNA for the…

A: Introduction Deoxyribonucleic acid (DNA) is a molecule made up of two polynucleotide chains that…

Q: How can a silent mutation lead to “exon skipping”?

A: In a silent mutation there is a change in DNA nucleotides. If a silent mutation occurs in an exon…

Q: What role do transposons play in the process of exon shuffling?

A: Introduction  Transposons are the short highly repeated DNA sequence present in heterochromatic…

Q: What do you understand by the degeneracy of codon? Give example

A: The DNA contains the information needed for the functioning of all living things in the form of…

Q: How many times would telomerase have to bind to a different site in the telomere to make a segment…

A: During the time of DNA copying, one of the strands is synthesizing continuously at the replication…

Q: What is the Evidence that a codon is composed of more than one nucleotide?

A: A codon refers to a specific sequence of deoxy ribonucleotide (DNA) or ribonucleic acid (RNA), which…

Q: How many codons are there in the mutated DNA-(b) and DNA-(c)? What types of mutations occurred in…

A: Codon is sequences of three DNA or RNA nucleotides.

Q: Define the mutations of the second base of triplet codons ?

A: Alteration of single base pair is called as point mutation. Point mutations can have one of three…

Q: What are the difference between exons and introns?

A: A single-stranded molecule of RNA that is complementary to one of the strands of DNA of a gene is…

Q: If a frameshift mutation occurs and an additional T is accidentally inserted into a DNA strand,…

A: The genetic information contained in the DNA is converted to proteins by the phenomenon called…

Q: Explain why mutations are more likely to occur on the lagging strand than on the leading strand in…

A: DNA is a long polymer of deoxyribonucleotides. It is an acidic substance present in the nucleus,…

Q: Name the three non-sense codons?

A: The genetic material is known to carry the information that is translated and read as triplet code,…

Q: Name the two initiating codons?

A: From the central dogma concept, we knew there is an intricate connection between genes and synthesis…

Q: If a prokaryotic cell experienced a mutation that eliminated DNA polymerase's 3' to 5' exonuclease…

A: DNA replication is a process in which DNA is synthesized in a semi-conservative manner. The enzyme…

Q: What is the concept of universality of the genetic code? What are the exceptions to this…

A: As we know that there are four nucleotide bases i.e. the A, T, G, C which are arranged in the form…

Q: Why do you expect that intron removal wouldreduce the delay?

A: Introns are defined as the DNA or RNA sequence that does not carry any information required for…

Q: If the rate of replication in a particular prokaryote is 900 nucleotides per second, how long would…

A: DNA replication a process by which DNA makes copies of itself and this process requires lots of…

Q: Is there any function for an intron?

A: DNA is the genetic material that carries genetic information in the form of coded nucleotide…

DNA and RNA

Deoxyribonucleic acid (DNA) is usually called the blueprint of life. Deoxyribose is a monosaccharide that has a key function in the synthesis of deoxyribonucleic acid. One less oxygen-containing hydroxyl group occurs in deoxyribose sugar. Nucleic acid, deoxyribonucleic acid, is one of the natural components. Deoxyribonucleic acid is a double-stranded molecule. Watson and Crick postulated the double-stranded model of the helix. A deoxyribonucleic acid is a molecular group that carries and transmits genetic information from parents to offspring. All eukaryotic and prokaryotic cells are involved.

DNA as the Genetic Material

DNA, or deoxyribonucleic acid, is a long polymeric nucleic acid molecule discovered in the late 1930s. It is a polymer; a long chain-like molecule made up of several monomers connected in a sequence. It possesses certain characteristics that qualify it as a genetic component. Certain organisms have different types of nucleic acids as their genetic material - DNA or RNA.

Genetics

The significant branch in science which involves the study of genes, gene variations, and the organism's heredity is known as genetics. It is also used to study the involvement of a gene or set of genes in the health of an individual and how it prevents several diseases in a human being. Thus, genetics also creates an understanding of various medical conditions.      

DNA Replication

The mechanism by which deoxyribonucleic acid (DNA) is capable of producing an exact copy of its own is defined as DNA replication. The DNA molecules utilize a semiconservative method for replication.