If all members of a transposable element family can besilenced by dsRNA synthesized from a single familymember, how is it possible for one element family (likeTc1) to have 32 copies in the C. elegans genome whileanother family (Tc2) has fewer than 5 copies?

Q: O a base substitution in an intron 5' splice site O a frameshift in an exon O a missense in an exon…

A: The answer to the question is  A frameshift in exon

Q: 1. a)What would happen if the aminoacyl tRNA synthetase responsible for charging alanine tRNAs also…

A: The polymerization of amino acids according to the codons on mRNA to form proteins is known as…

Q: Consider the Rho-dependent terminator sequence 5’CCCAGCCCGCCUAAUGAGCGGCCUUUUUUUU-3’. What affect…

A: The mutation is the change in the nucleotide sequence of the DNA. The point mutation is the mutation…

Q: How do the changed bases contribute to the 3dimensional structure and function of the TTRNA?

A: To find: How the changes in bases contribute to 3D structure of TTRNA. and function of TTRNA.

Q: A graduate student studying yfgA expression in the liver and heart performs an RNA-seq experiment.…

A: In order for a gene to produce functional gene products, such as proteins or non-coding RNA, and…

Q: Explain the function of 16S rRNA during initiation of translation in prokaryotes.

A: 16S rRNA(16S ribosomal RNA) is a component of prokaryotic ribosome 30S subunit (small subunit). S…

Q: Before the technology existed to synthesize RNAmolecules of defined sequence like those in Fig.…

A: Hello there! As you have posted multiple questions, we are answering only the first three subpart…

Q: How can the bacteriophage T7 promoter be used to controlexpression of a eukaryotic gene in…

A: Expression vectors are designed to control the expression of particular cloned genes. The native…

Q: What is a consensus sequence? How similar to the consensus sequence would you expect the promoter of…

A: Introduction  An area of DNA upstream of a gene called a promoter, as it relates to genomics, is…

Q: YFP-SC35 encodes a splicing factor. You would expect this molecule to be localized in what…

A: The process of transcription occurs in the nucleus. By this process, mRNA gets synthesized from the…

Q: Sometimes, cDNAs turn out to be “chimeras”; that is, fusions of DNA copies of two different mRNAs…

A: c dna is complementary dna.

Q: What molecular biology strategy can best be used to determine Inhibition of the splicing of one…

A: In eukaryotic genes, introns exist. They are interstitial sequences (80-10,000 bp). They do not code…

Q: What type of motif/domain is present in the RPB2 subunit? What could be the function of this motif…

A: motif:Protein or nucleic acids are present in protein structure chain like biological molecules.A…

Q: Some organisms have mechanisms in place that will override transcription termination. One such…

A: The HIV-1 (Human Immunodeficiency virus-1) Tat (transactivator of transcription) gene codes for a…

Q: Why can it be said that transcription of thebacteriophage T7 genome requires two enzymes?

A: T7 bacteriophage is a small phage which consists of double stranded DNA with 40 kbp nucleotide. The…

Q: Direct mutagenesis of Ca2+ ATPase gene resulted in the replacement of two amino acid residues -…

A: Ca2+ ATPase is a transmembrane protein found in the sarcoplasmic reticulum of the muscle cells. It…

Q: The entire genome of the yeast Saccharomyces cerevisiae has been sequenced. This sequencing has led…

A: The entire genome of the yeast has been sequenced and open reading frames (sequences with…

Q: In the corn snake Pantherophis guttatus, there are several different color variants, including…

A: Introns are non-coding sequences and exons are coding sequences in the gene. Splicing is the process…

Q: Some mutations in the trp 5′ UTR increase termination by the attenuator. Where might these mutations…

A: Tryptophan operon consists of a leader region located at the 5' terminal of mRNA called 5' UTR. The…

Q: The text has discussed the RNA-Seq technique, whichquantifies the amounts of mRNAs present in a…

A: RNA-seq (RNA sequencing) is a technique that detects the amount of RNA components present in the…

Q: Outline the two ways that piRNAs and PIWI proteins inhibit transposable elements.

A: PIWI (P- element Induced Wimpy testis) are RNA (Ribonucleic acid) binding regulatory proteins. The…

Q: The genome of SARS-CoV-2 is a single-stranded sense (coding) mRNA that is translated into many…

A: The three prime untranslated region is abbreviated as 3'UTR. It is the part of messenger RNA that…

Q: A significant number of mutations in the HBB gene that cause human b@thalassemia occur within…

A: Introduction: HBB is also known as beta-globin, hemoglobin, etc. It is a globin protein encoded by…

Q: The E. coli genome contains approximately 4639 kb. (a) How many copies of the 6-bp recognition…

A: E.coli is a type of bacteria that normally lives in the intestine. It is also found in the gut of…

Q: a mutation in the gene encoding Dicer would most likely result in: A) a failure to break the H…

A: Dicer, also known as endoribonuclease Dicer or helicase with RNase motif, is an enzyme that in…

Q: How do eukaryotic and prokaryotic RNA polymerases compare?   Eukaryotic and prokaryotic RNA…

A: Prokaryotes have only one RNA Polymerase, while eukaryotes have three (RNA Polymerases I, which…

Q: Imagine the four basic components of gene regulation are DNA, RNA, proteins, and small molecules.…

A: DNA and RNA are self-replicating genetical materials. Various types of RNAs are transcribed from…

Q: s the PAM sequence required for Cas9-mediated cleavage of a single-stranded strand of DNA (when that…

A: The protospacer adjacent motif is a short DNA sequence that follows the DNA region targeted for…

Q: Refer to figure, which shows the distribution of histone H2A.Z on nucleosomes near a transcription…

A: The DNA is compactly packed in the nucleus because of the presence of the histone proteins which are…

Q: In addition to Tc1, the C. elegans genome contains otherfamilies of DNA transposons such as Tc2,…

A: Transposons are mobile DNA segments. They can replicate and insert copies at various chromosomal…

Q: Which of the following concerning progeria are false? Choose all that apply.

A: 1. Regularly, Zmpste24 slices pre-lamin to eliminate 50 amino acids.Zmpste24 is a catalyst engaged…

Q: What is the meaning of the term consensus sequence? Give an example. Describe the locations of…

A: The consensus sequences are widely used in molecular biology. The genes are controlled by the…

Q: Mutants of S. pyogenes Cas9 have been developed which recognize different PAM sequences, such as 5′…

A: A short DNA sequence, the protospacer adjacent motif (PAM), is often accustomed to mark correct…

Q: In Figure 16-3a, what is the consequence of the new 5′splice site on the open reading frame? In…

A: A deletion mutation can occur only when a wrinkle forms on the DNA template strand and this further…

Q: What is the difference between crRNA and tracrRNA? Why are both needed for Cas9 to function?

A: A prokaryotic adaptive immunity system called CRISPR (Clustered Regularly Interspaced Short…

Q: Describe the promoter structure in prokaryotes and eukaryotes.

A: A gene's "promoter", which serves as a control point for controlled gene transcription, is a…

Q: in the lac operon, both the operator (o1) and the binding site for CRP–cAMP show rotational…

A: Lactose operon is also called as lac operon. The operon required for the transport and metabolism of…

Q: Explain why inserting 5 bp of DNA at the –50 position of a eukaryotic gene decreases the rate of RNA…

A: The process of transcription occurs in the nucleus, during which RNA molecule is synthesized from…

Q: The U1 splice donor site is critical for positioning of the U1snRNP for appropriate splicing. What…

A: U1 snRNP (Small Nuclear Ribonucleoprotein Particle):The U1 snRNP is a component of the spliceosome,…

Q: Why is it adaptive for the structural genes for using lactose to be under the control of a single…

A: Each cell can adjust to its surroundings to the best of its abilities. This adaptability is achieved…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.