Which of the following are characteristics that distinguish cancer cells from normal cells? Check All That Apply Cancer cells lack differentiation. Cancer cells have normal nuclei. Cancer cells have an unlimited potential to replicate.

Q: Why are retroviruses prone to accumulating oncogenes?

A: Retro viruses can cause backward flow of information from RNA to DNA. They contains the enzyme…

Q: High lignin content in leaf litter is associated with lower palatability among most decomposers.…

A: Lignin is "a complex organic polymer that is found in the cell walls of many plants, including…

Q: Demonstrate your understanding of the way a retrovirus replicates once inside a host cell. Name the…

A: HIV is a retrovirus . It is an enveloped virus . The envelope is derived from the host cell…

Q: Which of the following statements regarding retroviruses is FALSE? A)  a cellular enzyme converts…

A: Normally virus can have genetic material as either RNA or DNA. Retrovirus is a type of virus which…

Q: Plant B grows in unstable soil, it also needs to grow rather tall and grow quickly. This results in…

A: Roots are the most important part of a plant it grow under the ground and take water and food from…

Q: When looking at plant hormones, pick one promoter and one inhibitor, and explain the hat they do and…

A: ABA causes stress-related reactions in plants, such as seed dormancy and stomatal closure.  Immune…

Q: Denitrification occurs under:     anaerobic conditions     aerobic conditions     both aerobic…

A: Denitrification is the process in which the nitrogen compounds makes its way back into the…

Q: 1. Choose between:  GENETIC DIVERSITY, SPECIES DIVERSITY, ECOSYSTEM DIVERSITY ____________a.…

A: The variety of species present in a given community is referred to as species diversity. In order to…

Q: How will tissue PO2 change (if at all) in an exercising muscle that does not receive an increase in…

A: Partial pressure- Portion of the total pressure exerted by the presence of a single gas molecule.…

Q: QUESTION 46 In eukaryotic mitochondrial chemiosmosis, a proton-motive force allows protons to move…

A: A molecular assembly in the inner mitochondrial mebrain carries out the synthesis of ATP. This…

Q: bacterial sample.

A: CFU: It stands for Colony forming unit. It is defined as the single and viable propagule which…

Q: QUESTION 13 Which of the following is NOT true about the function of vacuoles? O a. Storage of waste…

A: The cell has been divided into cell organelles. Division of labor is also visible at the organelle…

Q: Which of the following is not a pigment that aids in photosynthesis? a.) electrons b.) chlorophyll…

A: Introduction :  The process through which green plants use sunlight to synthesize nutrients from…

Q: How are the respiratory system and circulatory system connected? The air from outside the mouth…

A: Answer) Through the respiratory system the oxygen from the nose reaches the lungs and from the lungs…

Q: Suppose the following experiment was run: An unbreakable cell was placed in 3 beakers with different…

A: Osmosis is a process of diffusion in which the solvent molecules move from its higher concentration…

Q: Slow block to polyspermy is linked to the cytosolic accumulation of the ion Select one: sodium O b.…

A: A polyspermy egg is one that has been fertilised by several sperm. Every chromosome in a diploid…

Q: Which of the following will promote apoptosis? Select one: a. electron transfer in cytochrome c Ob.…

A: Apoptosis is programmed cell death which is used to eliminate unwanted cells. Apoptosis carries a…

Q: Some plants actually thrive in soils that most plants find challenging.  One example is the…

A: This paragraph describes how some plants are able to thrive in soils that are challenging for most…

Q: Based on the following data, which bacteria is most likely a human pathogen? Bacteria E.coli S.…

A: The quantity of light absorbed by the solution or sample is called absorbance or optical density. In…

Q: In the pathway M1 + M2 M3+ M4, enzyme E facilitates the reaction. If compound M4 is further…

A: Enzyme feedback is a type of regulatory mechanism that uses enzymes to adjust the rate of a…

Q: 39)Start and stop signal sequences on a newly translated protein A) Tell the ribosomes when to move…

A: The translation is the process of creating a polypeptide chain based on the codon sequence found in…

Q: Which of the following statements is FALSE? The Delta protein itself is a transcription regulator;…

A: The Delta protein is a transmembrane protein that is involved in signaling pathways in both animals…

Q: what are the effects of caffeine on the nervous system? Why does it have these effects?

A: Please follow step 2 for detailed explanation.

Q: In describing the external hierarchy of the biological world, which of the following is NOT…

A: (b) All the organisms in a tropical rainforest make up a population is NOT accurate. A population…

Q: The TISSUES THAT DIFFERENTIATE to form the pancreas are derived from

A: Gastrulation is an important phase in embryonic development. In this phase, the pluripotent stem…

Q: Biofilms represent an important environmental niche.  What processes regulate might regulate…

A: A biofilm is a thin layer of microorganisms, such as bacteria, fungi, and archaea, that form a layer…

Q: Question 25 Which of the following would you expect to see when comparing the genomes of two…

A: Our genome is made up of about 3 billion base pairs of DNA that make us who we are. DNA sequences…

Q: Name the main types of high-risk HPV. What changes can they lead to and how fast?

A: HPV 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59, 66, and 68 are the 14 high-risk HPV types. Out…

Q: apply the knowledge of the ways by which materials, including those used in implants and sensors,…

A: The term "biocompatibility" refers to compability of materials to exist with living cell/ tissues or…

Q: Match the type of cytoskeleton protein to the structure, protein, or role by writing the correct…

A: Introduction:- The network of protein filaments in the cytosol of eukaryotic cells is known as…

Q: Which of the following is NOT true about the function of vacuoles? O a. Storage of waste products…

A: Cell organelles are specialized Sub cellular enveloped structures repsible for performing specific…

Q: Contraction of sarcomeres is dependent upon the motor protein attached to and moving along

A: The germ layer, mesoderm, is the source of soft tissue called muscles. Connective tissue is…

Q: According to Darwinian evolution, there must be variation and selection. In the evolution of large…

A: Natural selection is a continuous process where traits that give population reproductive advantages…

Q: Decomposers cannot obtain their energy directly by photosynthesis.

A: Plants and other living things employ a process called photosynthesis to transform light energy into…

Q: In photosynthesis, Select one: Oa. CO2 is split to create NADPH Ob. water is made to create NADP Oc.…

A: Introduction: The green components of the plant,  blue/green compound called chlorophyll A and a…

Q: Give detail explanation  of what pathologies are involved in A woman has been trying for a baby…

A: Infertility is a situation where a female who is desperately trying to get pregnant is not getting…

Q: In addition to pyruvate dehydrogenase, which of the following enzymes is also a regulatory site in…

A: Cellular respiration is a metabolic process in which glucose molecule is broken down and eventually…

Q: Describe the structure of a phospholipid and a phospholipid bilayer

A: Phospholipids are present in cell membranes.  They are amphipathic in nature.

Q: The pacemaker potential describes a slow depolarization of the membrane from -60 mV to -40 mV to…

A: A small structure known as the sinoatrial node (SAN) is located in the right atrium, close to the…

Q: Succinate oxidation is critical for generating the proton motive force (pmf) that drives ATP…

A: Succinate oxidation is the process of breaking down succinate, a molecule found in the Krebs cycle,…

Q: QUESTION 11 Starting from the exterior of the cell, what order does a food particle encounter as it…

A: While encountering with the food particles, Phagocytosis is a method of eating in which a cell wants…

Q: 5.Antimetabolites 5-fluorouracil and methotrexate are used for treatment of cancer. Explain the…

A: 5 fluorouracil and methotrexate are used as an anti cancer drug in chemotherapy.  Chemotherapy…

Q: The nucleic acid of a virus is

A: A virus is a submicroscopic infectious agent that replicates only inside the living cells of an…

Q: The following is a Mannitol Salt Agar plate. What does the yellow color on the right side of this…

A: In microbiology, mannitol salt agar, sometimes known as MSA, is a popular selective and differential…

Q: Briefly outline the aetiology and pathophysiology of Coeliac disease

A: There are a few important points : Prolamins: Proteins in food responsible for immune reaction and…

Q: Reaction A, AG= -7.3 kcal/mol Reaction B, AG = +4.0 kcal/mol. The overall coupled reaction would be…

A: Couple reactions are reactions where the energy is being transferred from one reaction to another…

Q: During sarcomere contraction, Select one: Oa. Calcium, troponin Ob. Calcium, microfilaments O c.…

A: The answer is option A- calcium, troponin

Q: Scientists identify a tumor cell in rats that divides more rapidly in the presence of galactose.…

A: Retroviruses are a class of RNA viruses that, in order to replicate, inject a DNA copy of their…

Q: What is the MAPK signaling pathway? What are the important enzymes and their function within the…

A: •MAPK signaling pathways have also been identified in higher organisms. In mammals, three major…

Q: The function of the lysosome is to Select one: a. remove ubiquitinated proteins b. make proteins c.…

A: Macromolecules are disassembled by lysosomes into their component parts, which are then recycled.…