21. Single nucleotide polymorphisms (SNPS) mutations are rarely fatal. Which of the following is not an explanation of this fact? a. only about 2 % of the human genome codes for proteins b. many genes are not expressed in most cells c. there are two copies of a gene present d. most SNPS do not code for an extremely important part of a protein e. all of the preceding are satisfactory explanations as to why SNPS are rarely fatal.

Q: geneticist happens upon a gene in humans that is not functional and is not currently being expressed

A: Pseudogenes are those which are present in the genome till now but do not perform any function.

Q: 3. The human genome contains about 20,000 genes but human cells can synthesize about 80,000…

A: The human genome is made up of both coding and non-coding regions. The coding regions, also known as…

Q: 6. Riboswitches are RNA sequences found in the 5' untranslated region of messenger RNA (mRNA) that…

A: Riboswitches are regulatory elements that control gene expression in response to the binding of…

Q: 3. During transcription: A. nucleotides are polymerized by DNA polymerase B. initiation occurs at a…

A: Transcription is the process of synthesis of RNA (mRNA, tRNA, rRNA) from the DNA which can further…

Q: 1.Which of the following events best predicts the consequence if there is NO post-translational…

A: Post translational modification occurs after translation event has occurred that is after the…

Q: 4. Apolipoprotein B is a protein that binds lipids and carries them around the body. One of the two…

A: The rate of translation varies amongst prokaryotes and eukaryotes. In prokaryotic cells, this rate…

Q: The gene encoding the protein/enzyme: a) DNA ligase b) the B clamp c) primase

A: DNA ligase binds two formed DNA pieces and hence is not the answer to this question. Primase is the…

Q: A particular DNA coding segment is ACGTTAGCCCCAGCT. Write the sequence of nucleotides in the…

A: Disclaimer: " It is assumed that the given coding strand is from 5' to 3' direction. The central…

Q: gene amplification results in larger amounts of gene products true or false

A: Introduction: The basic physical and functional unit of heredity is the gene. DNA is the material…

Q: 4. Compare the DNA sequences of individuals with Alzheimer's disease and their family members. Two…

A: The amyloid beta precursor protein (APP) is coded by the APP gene that is located on the chromosome…

Q: Which statement(s) below regarding DNA mutations is true: A. Mutations only occur in genes B.…

A: Ans: D) Mutation can occur in promoters.   Mutation is a change in the sequence of DNA due to…

Q: . Which of the following descriptions of EF-Tu is correct? A. EF-Tu delivers fMet- RNA to the A site…

A: Introduction: Elongation factors deliver aminoacyl-tRNA to the ribosome.  Ef-Tu is a monomeric…

Q: 48. Sickle cell anemia (SCA) is an inherited blood disorder resulting from abnormally shaped…

A: According to the question, we have to mention what type of mutation causes sickle cell anemia among…

Q: 3). Consider the four mutations (i-iv) described below: i. One of the mutations causing cystic…

A: A mutation is a permanent change in the DNA sequence of an organism's genome. Mutations can occur…

Q: 4. Below is a diagram of two adjacent genes in the E.coli genome. You have a wild type strain, and…

A: Q 4.) Ans.In this genetic study involving E. coli, two adjacent genes, Gene A and Gene B, are…

Q: 3. A missense mutation results in the presence of a different amino acid than was encoded by the…

A: Sickle cell anaemia is an autosomal recessive disorder.

Q: 1. Describe the difference in the bands for the PCR and RT-PCR from the CD4+ T cells (ie. Make an…

A: PCR is a biochemical technique that is used for target-specific amplification of DNA. dsDNA is…

Q: 8. Some antibiotics work by preventing protein synthesis in bacteria by binding to their ribosomes.…

A: Multiple choice answer is given below:

Q: In what mechanisms can genetic information be altered? What are the consequences of these changes?

A: Alteration or changes in genetic information is called mutation. Mutation can be spontaneous or it…

Q: .What type of mutation is seen here? WT:                       5′-AUG GCU AGA GUU GAA  AAA-3′…

A: Note - Since you have asked multiple questions, we will solve the first question for you. If you…

Q: )A scientist compares the sequence of a disease gene and a healthy gene and finds that these two…

A: The gene is the unit of heredity that is carried out from the parents to the offspring. This…

Q: The following is the DNA sequence of the entire protein-coding region for some small gene in a…

A: The flow of information from DNA to RNA is known as Transcription. (a) Transcription: It is a…

Q: 1. After exposure to a mutagen an A-T base pairing becomes T-A in the daughter cell. This is an…

A: Please note, keeping with the site regulations and in order to provide accurate and detailed…

Q: 2. [1] Which of the following are NOT necessary components of a. Anticodon b. Polymerase c. Ligase…

A: when the process of transcription completed of DNA to RNA in the nucleus of the cell, ribosomes in…

Q: 18. The DNA sequence M, shown below, is the sense strand form a coding region known to be a…

A: * Frameshift mutation is a mutation in which insertion or deletion of nucleotide occurs which…

Q: All of the following are functions of introns EXCEPT A. Provide buffering capacity against mutations…

A: Introns are non coding sections of RNA transcripts that are removed by splicing before the…

Q: 2. Genetics enables us to understand how proteins interact with one another within the context of a…

A: The study of genes, genetic diversity, and the passing of traits from parents to children are all…

Q: A SNV mutation that results in no change in the amino acid sequence is called:  A. silent mutation…

A: A mutation is a permanent alteration in the DNA sequence of an organism's genome. DNA, or…

Q: Which of the following statements are correct about DNA Repair in mammals (select all that apply)?…

A: DNA mutation is a process by which DNA damages are repaired by various enzymes. If these DNA damages…

Q: Distinguish between:- a. Glycoproteins and Proteoglycans. b. SIRNA and MiRNA

A: Glycoproteins Proteoglycans Glycoproteins are a class of conjugated proteins, with a prosthetic…

Q: 4. To understand the function of the Bcl11a protein, scientists attempted to knockdown its…

A: Small interfering RNAs (siRNAs) are a powerful tool for gene silencing, having the potential to…

Q: 5. You are given three different substances that are known mutagens. Using a variety of techniques,…

A: The objective of the question is to match each of the three substances with one of the given…

Q: 14) Do the cDNA libraries generated from a mouse brain and a mouse liver contain ALL of the same DNA…

A: A eukaryotic gene consists of coding (exons) as well as non-coding (introns) regions. During the…

Q: Different breeds of Korean cattle produce meat with varying amounts of stearic, linoleic and oleic…

A: Fatty acid synthase (FAS) is a large multifunctional enzyme that is responsible for the synthesis of…

Q: 16. Which of the following is a characteristic of the genetic code? a. codons and anticodons consist…

A: DNA (deoxyribonucleic acid) is the genetic material of all the organisms on the planet except a few…

Q: 8. what is A mutant that prevents the production of the wild-type protein or renders it inactive.…

A: In the complex world of genetics, mutations play a pivotal role in forming an organism's…

Q: . How do I explain a brief outline of the mechanisms in which DNA is used to generate protein by…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: If a mutation occurs in a coding region        a. it will cause a change or changes in the normal…

A: Disclaimer: Since you have asked multiple questions, we will solve the first question for you. If…

Q: 2. You are excited because you discovered a DNA sequence motif that appears to be in the promoters…

A: Promoter regions contain specific DNA sequences that act as transcription factor binding sites and…

Q: 1. You are studying a variant in a gene controlling wing development, Wng, in Drosophila. Using…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 8. Dioxin (in the human diet!) and ethidium bromide (used in labs to see DNA using UV light) are…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 3. The average molecular weight of human proteins is about 50,000 daltons. A few proteins are much…

A: The molecular weight of the normal protein and titin protein are given. We need to determine the…

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.