You treat cells in the lab with hydrogen peroxide to induce oxidative stress and observe the following: cell and organelle swelling, increased presence of neutrophils and a DNA smear pattern in a gel electrophoresis. Which one of the following pathways of cell death are induced in these cells? O Necrosis O Apoptosis Autophagy
Q: Pedigree 2: What is the most likely mode of inheritance of this disease based on its pattern in the…
A: what is the most likely mode of inheritance of this disease based on each its pattern in the…
Q: QUESTION 4 In the resting state: voltage-gated Na+ and K+ channels are both closed voltage gated Na+…
A: Voltage-gated ion channels: a type of transmembrane proteins that results in formation of ion…
Q: Suppose there's a gene that determines fur color in the Costa Rican Cow-of-Paradise. (Yes, I made…
A: Gene is the sequence of nucleotides present in DNA. The two alleles of a gene is present in the…
Q: Suppose a man is AaBb. Think about the possible sperm that he could produce. Now what if almost all…
A: Genetics is a branch of biology involved in the study of genes, genetic variation, and heredity in…
Q: Clearing away damaged parts is essential for keeping cells healthy and in good working order. Which…
A: Health is wealth. It is very important to maintain a healthy lifestyle for the human beings. Inorder…
Q: A regulatory region shows all of the following properties except
A: Ans - a) can be located in an exon. Regulatory regions cannot be present at the exon portion of a…
Q: Which of the following does not show heterotrophic nutrition? O Fungi O Lion O Leeches Green plants…
A: Introduction Modes of nutrition are the ways in which living things get their food. There are…
Q: Portal of entry into the body’s of Mycobacterium tuberculosis and Method of transmission
A: * Mycobacterium tuberculosis is pathogenic bacteria belong to Mycobacteriaceae causes tuberculosis.…
Q: 31-35. PKU disease is recessive. A man and woman are both carriers for PKU disease. They are…
A: Given information Phenylketonuria or PKU is an autosomal recessive disorder. Man and woman are both…
Q: Suppose that an arthropod such as a locust or crayfish hasabout 105neurons, a fish 108, and a rat…
A: The number of neurons define the complexity of sensory stimulus an organism can process and…
Q: INSTRUCTION: Given the DNA sequence below, provide the answers to the following items. a.…
A: In cells, DNA is present as genetic material that codes for mRNA, and mRNA in turn codes for the…
Q: What occurs during metaphase phase of mitosis? A. Microtubules can be lengthened by adding…
A: * Mitosis of the cell cycle in which chromosomes are separated into two cells with genetically…
Q: 5. Amino acid methionine is used as medicine due to its lipotropic effect («removes fat excess from…
A: Methionine is an essential and non-poral alpha amino acid which plays a key role in sulphur…
Q: D Question 1 The following conditions are required for natural selection to occur except that O…
A: Evolution is the change in the characteristics of a species over a long time period. It relies on…
Q: Q: plasma membrane is described as" protein iceberg in sea of lipids". why?
A: Singer and Nicolsan gave the fluid mosaic model to explain the structure of plasma membrane in 1972.…
Q: 17. Observe the patterns in plant diversity shown in the graph. How might Plant Diversification Over…
A: * Plants and trees survived the mass extinction is largest in the Earth’s history. * As we seen in…
Q: Rabies is a significant problem world wide. Briefly describe what causes the disease, what part of…
A: The rabies virus causes a rabies infection. The virus spreads through the saliva of infected…
Q: Viral meningitis is O usually less severe than bacterial meningitis usually more severe than…
A: Meningitis is an inflammation of the fluid and meninges - the membranes surrounding the brain and…
Q: What processes during the cell cycle ensures appropriate cell growth and rates of division?…
A: The cell cycle, also known as the cell division cycle, is a series of processes that occur in a cell…
Q: Which is the expected outcome following the deacetylation of histones?
A: Ans - a) Coiling of chromatin, preventing it from being accessed by the transcriptional machinery.…
Q: The __________ embraces the professional services, organizations, training academies, and…
A: The medical science establishment embraces the professional services, organizations, training…
Q: Hydroids resemble tracheids in the fact that they are living at maturity. O True • False Question 10…
A: Hydroids are specialized cells present in certain mosses that help in transporting water and…
Q: Stereotypical columnar cells within an organ have an apical side and a basal side. Which side of…
A:
Q: When white-coated cattle (W) are mated with red-coated cattle (R), the offspring are roan (WR),…
A: Codominance is a relationship between two versions of a gene. Individuals receive one version of a…
Q: Spironolactone, a diuretic, is used recently in treating resistant hypertension. How do you think it…
A: This question is about spironolactone.
Q: What are some of the benefits and drawbacks of using insects as experimental animals in order to…
A: Insects are a kind of blessing to the field of genetics. Insects have been used since ancient times…
Q: What is inflorescence? What are its two types?
A: Inflorescence:- The inflorescence is an arrangement of flowers or clusters of flowers on a branch or…
Q: Which of the following could represent an epigenetic modification in a cell? A. Deletion of…
A: Epigenetic changes are modifications to DNA that regulate whether genes are turned on or off. These…
Q: Choose correct answers | Banded Horntail is a wood-boring Hymenoptera. | Elm Sawfly is the largest…
A: * Banded horn tail is a wood boring hymenoptera *Horntail also called wood wasp belong to…
Q: 73. Which among the statements below is/are TRUE about potassium? 1- Potassium ions move out from…
A: "Blood" is an extracellular matrix made up of plasma, red blood cells, platelets, and white blood…
Q: true/false 1. Majority of Diprionidae larvae feed on coniferous trees. 2. Rusty Tussock Moth…
A: 1. Majority of Diprionidae larvae feed on coniferous trees it's true statement. species of…
Q: Question 5 of 18 When a threshold or a minimum magnitude of voltage fluctuation is reached, Select…
A: The neurons are responsible for generation and transmission of nerve impulses. They contain specific…
Q: Membrane 1 3 Prototype Pore size (Å) 16+7 27+7 46±20 Surface 0.044+0.008 0.045±0.006 0.053±0.006…
A: Abstract The oral route is a popular and convenient means of drug delivery. However, despite its…
Q: A population is expected to grow exponentially when the population size is close but below the…
A: Population can be defined as a group of individuals of same species.Population can show variation in…
Q: Which statement is TRUE about vitamin E? a. It boosts immunity by stimulating the production of…
A: Vitamin E is fat soluble, hydrophobic in nature. Chemical name of of vitamin E is tocopherol. It…
Q: Iodine deficiency would lead to a disorder called goiter? A. True B. False
A: Introduction :- The thyroid gland in the neck enlarges, causing goitre. The following are the most…
Q: Describe what is happening at the low, middle, and high points in the graph you made on the previous…
A: Wine fermentation is a very precise process because over fermentation can lead to faulty wine…
Q: Based on this table, the doubling time for this species is
A: Ans Is 18 Years Doubling Time There are a lot of people in this world, and that number just keeps…
Q: Neurospora crassa can synthesize the amino acid arginine from a precursor as follows: precursor…
A: It's an example of ONE GENE ONE ENZYME HYPOTHESIS By beadle and Tatum. Arginine is an alpha - amino…
Q: 10. ) organ transplant rejections are due to cell membrane recognition proteins. true or false?
A: The question is asked whether the organ transplant rejections are due to cell membrane recognition,…
Q: What word below best describes the orientation of maternal relative to paternal chromatids of each…
A: Meiosis is sometimes called reductive cell division. In Meiosis , DNA replication is completed in…
Q: position is defined as the ratio between the bo
A:
Q: What types of tools, approaches, methodologies, and ohnelogi. Hod in
A:
Q: How did the back mutation in hisG affect the protein produced by this gene?
A: Back mutation or backward mutation is a kind of mutation which leads to reversion of the mutated…
Q: list six abiotic factors that impact the distribution and abundance of organisms in terrestrial…
A:
Q: Pedigree 4: What mode of inheritance explains the pattern of this disease on the pedigree? O…
A: Please follow step 2 for a detailed explanation of the pedigree.
Q: Birds and Mammals share which of the following characteristics? Ectothermy air pocketed bones…
A: Ectotherms These are organisms which control their body temperature through external means. They…
Q: Which of the following are differences between the assembly processes of intermediate filaments…
A: Answer :- Option (E) is correct. - New subunits are added internally to the intermediate filament…
Q: 3. Draw a simple sketch of a transitional fossil that might link feathered, tree-climbing reptiles…
A: Comparative anatomy is the study of the "similarities and dissimilarities" between various objects.…
Q: Beta-carotene is the precursor of which vitamin? A. Vitamin A B. Vitamin B C. Vitamin E D. Vitamin C
A: Answer Option a) Vitamin A
Step by step
Solved in 3 steps
- Which of the following best describes a way in which a normal growth factor can stimulate cell division? A A growth factor can bind to membrane receptors and initiate a signal transduction path- way that causes the synthesis of division-facilitating enzymes. B с D A growth factor can supply necessary biomolecular building blocks for cell division by diffusing through the cell membane. A growth factor can facilitate the transport of glucose into the cell, thereby providing it with nutrients to support cell division. A growth factor can inhibit specific checkpoints in the cell cycle and allow the cell to skip or bypass certain cell cycle phases.Which of the following mechanisms is used to internalize soluble proteins that need to be brought into the cell? O Receptor mediated endocytosis COPII coated vesicles COPI coated vesicles Retrograde transport O Autophagy PreviousWhich situation would be the most likely result of a mutation in a eukaryotic organism that causes it to produce less p21 protein than normal? Cells with radiation-induced DNA damage would continue through the cell cycle without repairing the damaged DNA. O Cells with incomplete DNA replication would continue through the checkpoint. Cell replication would be slowed due to an increase in active G1/S cyclin-dependent kinase. Cells would not respond to growth factors. O Cells would have a hypersensitive response to growth factors.
- Increase in size and normal metabolic activities of the cell occur during O G1 phase O S phase G2 phase GO PhaseThe phases of cell cycles in order are O a. Metaphase, anaphase, telophase, interphase, prophase and cytokinesis O b. Metaphase, anaphase, interphase, prophase, telophase and cytokinesis O c. Interphase, telophase, cytokinesis, prophase, metaphase and anaphase O d. Cytokinesis, telophase, anaphase, metaphase, prophase and interphase O e. Anaphase, telophase, cytokinesis, interphase, prophase and metaphase O f. Interphase, prophase, metaphase, anaphase, telophase and cytokinesis g. Prophase, interphase, metaphase, anaphase, telophase and cytokinesis What is the purpose of using sodium bicarbonate (NaHCO3) in the photosynthesis experiment? a. None of the other choices is valid O b. To provide dissolved dissolved 02 O c. To provide dissolved dissolved CO2 O d. To provide dissolved waterWhich is true for cancer cells: 1) Cell death occurs after a determined number of cell divisions 2) Contact with other cells reduces chance of cell division 3) Cell division occurs in the presence of stop signals.
- Which event occurs in S-phase? prastrca Mitotic spindle is created. O Normal growth and cell function Energy stores are replenished Karyokinesis None of the aboveCytochalasin D inhibits the formation of microfilaments. Which of the following biological activities will be affected? Select all that apply. Formation of nuclear lamin network Formation of cleavage furrow in telophase U Cytosolic transport of secretory vesicles Movement of phagocytic cellsWhich of the following options correctly describes the functions of both cilia and flagella? Excretion Protection Locomotion Body’s defense BENTEN: During meiosis I, pairs of homologous chromosomes align randomly along the metaphase plate before being separated. This process helps generate genetic variation in the offspring of sexual reproduction. Which of the following best explains how the random alignment of homologous chromosomes during meiosis helps generate varied offspring? Random alignment increases the likelihood of crossing over between non-sister chromatids. Random alignment results in the formation of gametes that contain different numbers of chromosomes. Random alignment increases the number of possible chromosome combinations in the gametes. Random alignment results in the formation of some diploid and some haploid gametes.
- Match the following terms with the correct description Go phase A. During this phase, the cell divides into two identical cells. G, phase B. During this phase, the cell grows In size and synthesizes MRNA Gz phase C. This phase directly precedes mitosis. s phase D. This phase can be percelved as a moment in time in which the cell is nelther dividing nor preparing to divide. M phase E. DNA Is replicated during this phase.Provide short definition for this terms Cytolysis Selectively permeable Phagocytosis Osmosis Contractile vacuoles GuttationSome cancer cells are insensitive to typical chemotherapy. Research into the mechanisms underlying this insensitivity uncovered an ability by these cells to pump the treatment drug out of the cell against its concentration gradient. Additional drugs have been developed that inhibit the pump, thus trapping the chemotherapeutic agent inside to promote cancer cell destruction. The Figure shows what happens when two types of cells are treated with a 3H-labeled anti-cancer drug, paclitaxel. Two additional drugs, imatinib and nilotinib, are evaluated for their ability to overcome the cancer cells ability to pump out the chemotherapeutic agent. An asterisk (*) indicates a statistically significant difference from the cells receiving paclitaxel alone. Do the additional drugs seem to the effective in over-coming the pump? Which set of graphs (A or B) best supports your answer? Explain your answer.