Mutations in genes can cause a loss of inhibition? O Proto-oncogenes O Oncogenes O Tumor suppressor genes O Cyclins

Q: A cell that has passed the G1 checkpoint cannot go back because: Select one: O a. S and G1/S cyclins…

A: During early G1, there are three transcriptional repressors, known as pocket proteins, that bind to…

Q: Cyclin D/cdk 4,6 inhibits retinoblastoma protein (Rb) binding to...., which ultimately affects gene…

A: Mutation in RB1 gene causes retinoblastoma. Due to this mutation cell is unable to control growth.…

Q: Which negative regulatory molecule can trigger cell suicide (apoptosis) if vital cell cycle events…

A: An ordered cell death pathway that might be caused by specific gene expression, damage or collapse…

Q: Suppose a gain-of-function mutation happens in an oncogene. Which of the following changes is likely…

A: Cancer causing gene is known as oncogenes and its an abnormal active gene which promotes growth of…

Q: genes for retinoblastoma (pRB) and p53, act as  ________ in regulating the cell cycle

A: The retinoblastoma (Rb) and p53 genes perform an important role in cell cycle mechanisms. They play…

Q: Epigenetic modification of gene expressiona. always inhibits gene transcription.b. always stimulates…

A: Epigenetics involves the alteration of a phenotype that is heritable in nature without any effect on…

Q: A gene that normally produces a protein that tells a cell to stop gets mutated. Now, the cells won't…

A: A gene mutation occurs when one or more genes are altered. Some mutations can cause genetic diseases…

Q: HIV is not an oncogenic virus, but it does allow for other viruses to affect oncogenes.  Describe a…

A: HIV is human immunodeficiency virus which makes the immune system weak and destroys the body's…

Q: Which two arrows and/or t-bars are accomplished through transcription (and translation)? no DNA…

A: Transcription is the process by which RNA is copied from DNA and in Translation is RNA is converted…

Q: A stem cell divides into two daughter cells goes on to become a terminally differentiated cell. What…

A: Stem cells are a special type of human cells. These cells are special as they are capable of…

Q: Genes that cause cancer are called _____________.

A: Cancer means uncontrol cell proliferation and division in the body. This uncontrolled group of cell…

Q: A cell is cancerous. You might find an abnormality ina. a proto-oncogene.b. a tumor suppressor…

A: Cancer is an uncontrol growth of a cell .cancer was developed when this is an abnormal growth of a…

Q: Progression through the cell cycle is regulated by fluctuations in the concentration of G proteins…

A: A series of events which takes place in a cell due to which it divides and forms two daughter cells…

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: Which of the following do cancer cells rely on to be able to divide indefinitely? tumor suppressors…

A: Cancer is defined as the biological disorder in which the cells undergo uncontrolled growth and cell…

Q: What is MPF? A polysaccharide that traps water and forms gels A protein complex involved in cell…

A: As per the honor code, we answer only one question at a time. Therefore, we are answering the first…

Q: What determines cell differentiation once gene regulation has taken place? O A. mitochondria O B.…

A: The regulation of gene in eukaryotes occurs at several level, which is far more diverse and…

Q: ________ are changes to the nucleotides in a segment of DNA that codes for a protein.a.…

A: DNA( deoxyribonucleic acid) is the double-stranded molecule that is the genetic material in most…

Q: Which of the following is NOT true for proto-oncogenes? O cause a gain in function O mutations are…

A: Proto-oncogenes are those genes that under normal conditions help the cell to grow but when they are…

Q: Embryonic stem cells come from OA. aborted fetuses OB.cells from amniocentesis of the amniotic fluid…

A: Stem cells are immature and undifferentiated cells that have the strength to create more…

Q: How is the cell division of cancer cells misregulated? What genetic and other changes might have…

A: The cell cycle posses various phases which include mitosis and cytokinesis causing nuclear and…

Q: Cancer cells are O clones of a single cell have a high mutation rate promote blood vessel growth.…

A: Cancer is basically a disease of uncontrolled cell division. Its development and progression are…

Q: // Which one of these does CDK1/cyclin mitotic kinase NOT do to induce mitosis? Phosphorylates…

A: ANSWER;- a) Phosphorylates Histone H1 to condense chromosomes Explain;-The cyclin B-Cdk1 kinase…

Q: Q6

A: A mutation is a change in the structure of a gene, which is the fundamental unit of inheritance.…

Q: What is a primary function of tumor suppressor genes?a. stop all cells from dividingb. stop certain…

A: An abnormal growth of body tissue is called tumor. Tumors can be noncancerous and cancerous. Tumor…

Q: The process of cell modification from a generalized cell to one that performs a specific task is…

A: Recombinant DNA or rDNA is a technology used to cut and join two or more DNA sequences of interest…

Q: Proto-oncogenes normally suppress tumor growth are under expressed in cancer cells increase…

A: Answer of the question given below...

Q: allów it to move past the G1 and G2 checkpoints even if its growth factor is not present, These…

A: Whenever cells come into contact with each other, the mechanism of contact inhibition occurs. As a…

Q: IS most suppressor gene that is often mutated in human cancers.

A: Tumor suppressor genes are also known as anti oncogenes because they regulate the cell cycle during…

Q: Which protein has to first accumulate in the cell before combining with other proteins so that the…

A: The cell cycle is the sequence of events that occur in the cell for the preparation of cell…

Q: Hypermethylation is thought to contribute to cancer by a. inhibiting DNA replication. b. inhibiting…

A: DNA methylation is one of the intensely studied epigenetic modifications in mammals. The regulation…

Q: Vhich statement about DNA methylation is true? D It requires a histone methylase. D It involves the…

A: DNA is the genetic material. It stands for deoxyribonuceic acid.

Q: Many human cancers result when a normal gene mutates and leads to uncontrolled growth (a tumor).…

A: Introduction  Cancer is a popular disease now a day. In the US, 1 in 2 women and 1 in 3 men develop…

Q: What does it mean to say that a gene is expressed? DNA contains the information needed to make a…

A: Numerous cells aggregate to make up the whole body. Cells are the building blocks of the body. Cells…

Q: Cancer occurs when genes that regulate the cell cycle are mutated. True False

A: Cell cycle is a kind of division which produces daughter cells from the parent cell.

Q: Which one of these is a tumor suppressor gene? myc erbB O Rb Gasp

A: Which one of these is a tumor suppressor gene?

Q: Which one of the following events is unlikely to beassociated with cancer?a. mutation of a cellular…

A: Cancer is basically the uncontrolled proliferation of abnormal or mutated cells in the body. It is…

Q: A mutated gene that transforms a normal cell into a tumor cell is called a O a. neoplasm. O b.…

A: When cells expand and divide faster than they should or do not die when they should, an irregular…

Q: A change in what type of cell is most likely to cause a mutation that can be inherited? O brain…

A: The cell is the basic structural and functional unit of life. It carries out various functions in…

Q: Radiation therapy is commonly used in the treatment of cancer because it interferes with the…

A: Ans: Radiation therapy: The use o X-rays for killing cancer cells as a part of cancer treatment is…

Q: CDK levels through the cell cycle while cyclin levels fluctuate; fluctuate fluctuate; stay the same…

A: A cyclin-dependent kinase is a group of protein kinases enzymes that are activated bi cyclin and are…

Q: Positive cell cycle regulators may become mutated to a. tumor suppressor genes b. oncogenes Cc.…

A: INTRODUCTION Oncogenes These are the gene which have the potential to cause cancer.

Q: Check all that is true about NORMAL healthy cells (there are more than one answer) O They undergo…

A: When cells die or get infected, healthy cells have the capacity to self-destruct. Healthy cells…

Q: Can hormones affect the cell without changing gene expression Yes No

A: Hormones are the chemical molecules which acts as a chemical messenger for different body tissues…

Q: Ionizing radiation, viruses, and chemicals are all examples of: A. Precursors to oncogenes B.…

A: Answer :- Option (D) is correct. -Ionizing radiation, viruses, and chemicals are all examples of:- -…

Q: What term is most closely associated with the term "differentiation"? O new growth O taking on a…

A: In most simple words, the term 'Differentiation' in Biology means to become different. It is the…

Q: Gene expression does not vary by_______ . a. cell type c. stage of development b. extracellular…

A: Gene expression is defined as the process wherein genes are read/translated using process-specific…

Q: In breast cells, the BRCA1 and BRCA2 genes are highly expressed during the G1/S checkpoint. The G1/S…

A: the G1/S checkpoint  is also known as restriction point in mammalian cells. This is the point the…

Q: A gene that codes for a positive cell-cycle regulator is called a(n) _____. a. kinase inhibitor. b.…

A: The cell cycle is responsible for the continuity of life from one cell to the next since it…