The process by which thymine dimers are directly repaired with the help of visible light is called

Q: What is the Delta variant and how is it impeding on getting things back to "normal"?

A: The disease is a condition that is caused by a deviation from the normal. Majority of the disease is…

Q: tyrosine

A:

Q: A chromosome from a multicellular slime mold called purple oblex (Plasmodiophora oblexii) is 13%…

A: Chargaff’s rule is used in such calculation for determining the percentage of the DNA bases that…

Q: A gene contains 30% thymine. What is the percentage of pyrimidines present in this segment? Explain.

A: Purines and pyrimidines are chemical molecules that play a role in the production of DNA and RNA and…

Q: chaperone mediated autophagy.

A: Autophagy that is mediated by chaperone proteins is called chaperone-mediated autophagy. The…

Q: What results can happen when ultraviolet radiation is used (i.e. thymine dimers) and this will…

A: When adjacent thymidine residues are covalently connected in presence of ultraviolet radiation,…

Q: Notably, one subunit of APC itself must remain phosphorylated at a single amino acid during sister…

A: In the phosphorylation reactions, proteins are reversibly modified. It is a regulatory reaction. The…

Q: Enzymes that phosphorylate proteins is an example of gene regulation by ---- "

A: Ans. The charged and hydrophilic group of Phosphorylation is inserted into the amino acids side…

Q: Is the presence of oncogenic Ras necessary for transient inflammatory stimulation to induce chronic…

A: Cancer is disease in which there is uncontrolled proliferation of cell.  In organisms, cell…

Q: What is fadh2 used for?

A: FADH2 stands for Flavine adenine dinucleotide. One molecule of FADH2 yield two molecules of ATP.

Q: In a rare genetic disorder, the absence of a particular enzyme leads to increasedtestosterone…

A: Aromatase is an enzyme, which is involved in the production of estrogen that acts by catalyzing the…

Q: What are the effects of Sxl mutations?

A: Mutations are defined as the change in the sequence of DNA of an organism due to any environmental…

Q: Show the cross between a ggBb and a GGBB.

A: gB gb gB gb GB GgBB GgBb GgBB GgBb Gb GgBb Ggbb GgBb Ggbb GB GgBB GgBb GgBB GgBb Gb GgBb…

Q: Describe three mechanisms cells use to repair thymine dimers.

A: Answer: Introduction: Pyrimidine dimers are molecular abrasions produced by thymine or cytosine…

Q: Explain why in cells that are genetically NF1–/–, basal levels of GTP-bound activated Ras are higher…

A: Neurofibromatosis type 1 (NF1) is a typical hereditary problem portrayed by various neurofibromas,…

Q: Identify the two general functions of the proteins encoded bytumor-suppressor genes.

A: Gene is the unit of heredity that is transferred from a parent to offsprings. Proto-oncogenes are…

Q: The ras protein is a mutated G protein that lacks GTPase activity. How does the absence of this…

A: G protein is a membrane protein whose target is a membrane associated adenylyl cyclase enzyme. when…

Q: True or False: An individual with sickle-cell anemia is caused by a missense mutation.

A: Missense mutation is a type of genetic alteration in which a single base pair substitution alter…

Q: What are histone deacetylase inhibitors (HDACi)? Give example(s)

A: Histone deacetylase (HDAC) is an accelerator that removes the acetyl radical from histone proteins…

Q: Which of the following results in transcriptional attenuation?

A: In hereditary qualities, attenuation is a proposed mechanism of control in some bacterial operons…

Q: How do we know that expression of the information encoded in DNA involves an RNA intermediate?

A: The genetic material of the cell, that is, the DNA (deoxyribonucleic acid) comprises various genes…

Q: Explain how cells prevent excess transposable elementmobilization

A: Transposable elements (TEs) are the small segments of DNA that can move from one position to other…

Q: In some inherited cases, the normal prion protein can convert spontaneously to the abnormal form,…

A: Prions are proteins that are not properly folded and have the ability to transmit their abnormal…

Q: What are sex steroids synthesised from?

A: On the basis of their receptors, the steroid hormones have been organized into five groups:…

Q: What mutagen causes thymine dimers, and why does it kill cells?

A: A mutation occurs/happens when the sequence/structure of DNA changes. Mutations can occur/happens as…

Q: Describe how tyrosine is degraded.

A: Introduction: Tyrosine is one of the 20 essential amino acids that cells use to make proteins. It's…

Q: What does it mean to act in trans?

A: Trans basically refers to the action different from another molecule. This term is widely used in…

Q: 5-Azocytidine is an inhibitor of DNA methyltransferase. If thisdrug were fed to female mice during…

A: DNA methyltransferase is an enzyme, which is involved in the transfer of methyl group from the…

Q: Excess glucose in the body is converted to ----

A: When there is an unnecessary measure of sugar accessible in the blood it is taken up into the cells…

Q: What is the relationship between x-d-glucose or β-d-glucose? Are they mirror images?

A: Glucose is a sugar (monosaccharide) It possesses 3 carbon atoms and 1 aldehyde group. Therefore it…

Q: How is the activation of the GAL1 gene prevented in thepresence of galactose and glucose?

A: The process wherein the expression of GAL genes is inhibited in the presence of glucose is known as…

Q: What is the reason why "AUTOcoids" changed to AUTACOIDS? Are there implication of the change

A: Autacoids or "autocoids" are biological factors which act like local hormones, have a brief…

Q: Would the following alterations to Src be oncogenic? Explain. (a) The deletion or inactivation of…

A: Src is a protooncogene.

Q: Which of the following plays a role in repairing thymine dimers by reversing the damage caused by UV…

A: A permanent change in the DNA’s base sequence is termed as mutation. The agents that cause mutation…

Q: Transverion mutations result from

A: Mutation is a change in nucleotide sequence in a polynucleotide chain. This can be natural or…

Q: How Histone acetylation is catalyzed ?

A: Histones are basic proteins. These proteins are associated with the DNA. DNA association with…

Q: What are histone acetyltransferase (HAT) enzymes ?

A: Catalysts help to speed up chemical reactions. Substrates are the molecules on which enzymes can…

Q: What mutagen results to the formation of thymine dimers?

A: Asked : Mutagen which results to the formation of thymine dimers

Q: How does KU proteins promote DNA repair during mitosis? Explain.

A: DNA repair  It involves different processes through which a cell determines and rectifies the damage…

Q: What is the major biological function of the Son-of-Sevenless (SOS) protein?

A: The name of this gene was based on the fact that the Sos protein it encoded was found to operate…

Q: Herceptin is an antibody that is used to treat certain forms of breast cancer by binding to a class…

A: Introduction:   Breast cancer is the uncontrollable growth of cells in the breast region. Two major…

Q: Consider the expression “central dogma,” which refers to the flow of genetic information from DNA to…

A: The transfer of genetic data in cells from DNA to messenger RNA (mRNA) to protein is described by…

Q: Proceed to the slide that shows how APP is cut to produce beta amyloid. What is the relationship…

A: Alzheimer's disease is a type of brain disorder that gradually diminishes the power of thinking…

Q: Describe the types of cellular damage caused by ROS.

A: Reactive oxygen (ROS) species is considered as the highly unstable molecule which contains oxygen…

Q: What is meant by the differential activation of genes? Explain how this affects the synthesis of…

A: Genes are the basic structural and functional units of heredity. They play a major role in carrying…

Q: The tumor suppressor pRB also binds to and suppresses theactivity of retinoblastoma binding protein…

A: The segments of the genetic material which helps in the expression of the characters are known as…

Q: List two or three factors that make it advantageous for peptide hor- mones to be synthesized as…

A: Peptide hormones may contain 3 to hundreds of amino acids. They are produced as precursors…

Q: Because DNA is found in the nucleus, transcription is a nuclear-localized process. Ribosomes…

A: Heterogeneous nuclear ribonucleoproteins (hnRNPs) represent a large family of RNA-binding proteins…

Defense Mechanism

Circumstances influence and compel people to behave in a certain way. One such behavior is a defense mechanism. It is employed by people to escape from unpleasant circumstances, thoughts and actions. Defense mechanisms are, thus, psychological strategies that help to avert and avoid unwanted feelings such as guilt or shame and situations such as threat and danger.