mutation in p53 promoter that prevents p53 from being expresses Causes? Why? A. Increased proliferation B. Decreased proliferation

Q: Often mutations in cyclin dependent kinases, CDKs, can cause cancer. This is because a. CDKs…

A: Cyclins are one which drives the cell cycle events by working with enzymes called Cyclin-dependent…

Q: Which statement is true about transposon? a. Transposon is known as a ‘jumping gene’. b.…

A: The science of genes and inheritance, or how particular characteristics or traits are transferred…

Q: Describe how is cancer related to cell cycle

A: A cell cycle is a series of events that takes place in a cell as it grows and divides. The cell then…

Q: These genes are involved in normal cell growth and division, but if mutated, could become more…

A: Oncogenes are tumour-causing genes. They are mutated and abnormal that leading to uncontrolled cell…

Q: Which plasma membrane component can be either found on the surface or embedded in the plasma…

A: The plasma membrane is the membrane sourrounding the cells in case of both plant and animal cells…

Q: Research the function of the protein called p53. What does this function do? Explain how it can…

A: Step 1 The p53 gene was identified by Arnold Levine, David Lane and William Old in 1979. The p53…

Q: Which type of gene controls functions like an "on-off" switch for gene transcription? A. DNA…

A: Option D is the correct answer

Q: Can one transcription factor sometimes act as a repressor and sometimes act as an activator? a. Yes,…

A: Transcription factors are proteins that bind to neighbouring DNA and help switch particular genes…

Q: How would effects of carcinogens on the epigenome play a role in development of cancers

A:

Q: explain how p53 functions in a cell that sustained DNA damage to prevent progression of that cell…

A: DNA can get damaged due to various factors such as incorrect replication, exposure to mutants, UV…

Q: Which molecule is a Cdk inhibitor that is controlled by p53? a. cyclin b. anti-kinase c. Rb d. p21

A: Enzymes that catalyze consecutive metabolic reactions are multifunctional enzymes. These enzymes…

Q: If a is inactive, a cell may become cancerous. Ca. proto-oncogene b. tumor suppressor gene Cc.…

A: Cancer is the group of diseases. It involves the uncontrolled division of normal cells in the body.…

Q: Question 6. What is the process through which cellular organelles can be recycled in the cell? A.…

A: The science of cell structure and function is known as cell biology, and it is based on the idea…

Q: The role of p53 in normal cells is toa. create cancer-blocking mutations.b. trigger unrestrained…

A: Answer- P53 is the tumor supressing gene that is prensent in every cell. Any mutation in this leads…

Q: How might a mutation in the DNA result in the formation of cancer ?

A: The mutation is any change or alteration in the nucleotide sequence of the DNA. The mutation of a…

Q: Which gene regulation event is ONLY present in prokaryotes?  a. transcription level of regulation…

A:

Q: When an invasive cancer occurs? A. When genetic mutation occurs in a cell B. Cells are abnormal…

A: * Invasive cancer means a cancer which was grown past the original tissue where it developed and…

Q: when does DNA synthesis occur?  a.

A: The cell cycle consists of several phases: G1 (Gap 1), S (Synthesis), G2 (Gap 2), and M…

Q: Epigenetic marks regulate gene expression. Which epigenetic mark is NOT associated with positive…

A: These are chemical modifications that change the gene expression, make it on or off

Q: How do Cyclins work? a. They are kinases that phosphorylate key proteins at different points in the…

A: Cell cycle progression is dependent on the activity of cyclin-CDK complexes. Cyclins are the…

Q: Which is a common cause for the production of oncogenes?   a. defective ion channel proteins…

A: Cancer  The continuous uncontrollable division of defective cell can leads to the cancer.

Q: gene in liver cells is "off". In the presence of a toxin, a repressor is removed and the gene is…

A: Repressor It refers to a protein which is invoved in the regulation of gene expression. This protein…

Q: What would be the likely result of a mutation of the bcl-2 gene on the level of apoptosis? a. No…

A: Answer: Introduction: Bcl-2 (B-cell lymphoma 2), occurred in humans produced by the BCL2 gene, this…

Q: A mutation in Ras that prevents Ras from hydrolyzing GTP. Would cause? Why? A. Increased…

A: To produce many diploid cell progeny, cell proliferation is achieved by combining cell growth with…

Q: Assess the statement that cancer is, in many cases, an epigenetic disease.

A: Mammals' normal creation and maintenance of tissue-specific gene expression profiles depend heavily…

Q: hich of the followinf would a MAPKK (MAP2K) protein would be activated (phosphorylated) by? a. MAPK…

A: The main player in the MAPK cascade and the point of convergence and divergence for other signalling…

Q: How does p53 operate in normal cells?

A: The p53 gene is coded by TP 53 gene. It is named p53 because of it molecular weight53 KD.p53 gene is…

Q: A chromosomal mutation that occurs during meiosis may or may not be expressed in an organisms…

A: Mutations are changes in DNA sequence during a cell division.

Q: What happens to microtubules in the presence of very high levels of GTP?   A. They will undergo…

A: In eukaryotic cells three types of cytoskelton proteins are found that are- microfilament,…

Q: 1. Stress can affect the epigenome of an individual. II. Depending on the affected site, epigenetic…

A: Stress can have a direct effect on DNA through the mechanism of epigenetics, which means 'on top of…

Q: _________________ includes both transcription and translation

A: Answer - Option B - Gene expression

Q: Which of these occurs as we get older?a. Neurons replicate to replace lost neurons.b. Skeletal…

A: Aging is considered as the progressive physiological changes in an organism that lead to senescence,…

Q: Analyze the roles of DNA repair, cell cycle control, and the immune system that play in cancer…

A: ANSWER;-

Q: When the DNA is loosened, i.e. unwound from the histones? B. Reading of genes remains the same. A.…

A: The gene is the fundamental basis of inheritance. DNA is the genetic material that contains all the…

Q: Why exposure to radiation is used as a therapy to treat some kind of cancers , explain what is…

A: Radiation is used as a therapy which is used to treat some kinds of cancer. Radiation mainly damages…

Q: prophase   B. metaphase   C. anaphase   D. telophase

A: Introduction: Mitosis :  it is a type of the cell division in which the one cell  divides to…

Q: In two sentences answer the following question. If all sheep cells have keratin genes for making…

A: Introduction :- Keratin is a family of fibrous proteins that are the main structural component of…

Q: Describe how different chemicals and radiation can be involved in the development of cancer. Then,…

A: Malign neoplasias, or cancers, are abnormal and uncontrolled cell proliferation that can spread to…

Genomic studies

Genomic studies (genomics) is the study of the whole genome of an organism. Using bioinformatics and high-performance computing, genomic researchers examined massive amounts of deoxyribonucleic acid (DNA)-sequence data to discover variations or mutations that affect drug response, health, or disease. Genomics is a much younger discipline than genetics, having only emerged in the last few decades as a result of technological advancements in DNA sequencing and computational biology.