Suppose we live in a universe in which the electron and positron have charges opposite to ours, i.e. the electron is positively charged and the proton is negatively charged. Nothing else is different. Would life be different?

Q: Question 18 Listen It is possible to inherit an allele that arose as a spontaneous mutation a) True…

A: Introduction The mutation is the sudden deleterious effects in the DNA sequences, they can arise…

Q: You have a petri dish containing 2 x 106 cells and you add 2 x 105 pfu of virus to the dish. What is…

A: The multiplicity of infection(MOI) is the ratio of infectious pathogens (viruses or virions) to…

Q: During metaphase, what may happen if spindle fibers (kinetochore microtubules) will not be attached…

A: A cell cycle checkpoint is a control point where stop-and-go signals can govern the cycle. Various…

Q: If nuclear DNA replicates during the S (synthesis) phase of the cell cycle, when does mitochondrial…

A: Mitosis is a type of cell division in which one cell (the mother) divides to produce two new cells…

Q: please answer both 18 and 19  asap

A: Every cell needs oxygen to complete cellular respiration, which emits carbon dioxide and water as…

Q: Fill in the Blank Question Coming from words that mean "sugar coat", the layer of carbohydrates…

A: The plasma membrane is the selective barrier of the cell that regulates the entry and exit of…

Q: 3.Describe the hypodermis, dermis, and epidermis.

A: Introduction The largest body organ is the skin which serves as the first primary barrier to prevent…

Q: Which of the following marks an important event during telophase? movement of chromosomes at the…

A: Introduction A normal cell can divide by two processes one is Mitotic cell division and the second…

Q: If the concentration of the bacterial nutrient, maltose, is higher outside the cell than inside the…

A: Passive transport  A type of transport of molecules across the cell membrane where no expenditure of…

Q: Explain why the following statements are false and reword them to be true, regarding meiosis or…

A: Introduction :  A chromatid is one-half of two similar copies of a duplicated chromosome. At the…

Q: Some proteins such as DNA ligase can temporarily bind to DNA. If such a protein interacts with the…

A: In DNA replication, the DNA unwinds, and the two strands detach at the "replication origins" a…

Q: Anti-cholinergic agents are large in size to block the receptor and employs H-bonding from hydroxy…

A: Answer: Option (a) true is correct.

Q: 5. What is the name of the outer cell layer of the blastocyst and what does it give rise to? Does…

A: Introduction  Human fertilisation is the joining of a human egg and sperm, which takes place in the…

Q: Which of the following statements about microscopes is correct? Select ALL correct answers. The…

A: Explanation: A tool used to magnify tiny things is called a microscope. Even at the cellular…

Q: Describe the principal structural and functional features of a neuron.

A: A collection of cells with similar cellular makeup and shared functions is referred to as a tissue.…

Q: If a pink snapdragon is crossed with a red snapdragon, what phenotypes can result, and what is the…

A: A dihybrid cross is made up of two people who have two features that are regulated by two different…

Q: The following is the site where a lipid is added to a protein to make a lipoprotein: O a. Nucleus O…

A: In eukaryotic cells, there is extensive compartmentalization as there are many membrane bound…

Q: a) b) c) You run away from your home because your parents forced you into medicine. You meet a drug…

A: Introduction :- The organic molecule acetylcholine serves as a neurotransmitter in the bodies and…

Q: 1. You are extracting DNA from 10 mL of whole blood. WBC's (white blood cells) are collected via…

A: DNA extraction is a process of isolating DNA (genome) from a given sample of cells. It requires…

Q: I’m preparing 100 mLs of medication for a patient at the hospital. It must be diluted to 10% of the…

A: Each medicine requires a particular dose or concentration for its optimal action. Beyond that it can…

Q: Which of the following is the most important contributor to the difference between the resting…

A: A membrane's voltage varies rapidly in a series known as action potentials.

Q: Describe the two different experimental approaches that give evidence for nuclear equivalence in the…

A: Introduction The nuclear equivalence principle states that the nucleus of all differentiated cells…

Q: Importance of functional groups in biological system with at least two examples?

A: Introduction  When a molecule contributes in a living organism's biological reaction or process, it…

Q: Hyperventilating can result in a decrease in CO₂ (g) concentration in the blood. How would this…

A: Extra cellular fluids  The fluids that are present outside the cell for example blood.

Q: Follow the instructions below and address the following promp Tell us about your favorite example of…

A: Introduction Adaptation is the physical feature of an organism that enables them to survive in that…

Q: How are we able to distinguish between the two (above) life cycles on a bacterial lawn?

A: Introduction  Bacteria are prokaryotic, or single-celled, creatures that are virtually ubiquitous on…

Q: Explaoin the causes of cancer ?

A: The human body is made of cells. For growth and development, these cells in the body are divided and…

Q: Which is a common chromosome configuration during prophase, metaphase, and anaphase? Chromosomes…

A: Introduction Strasburger 1875 first reported the presence of chromosomes in eukaryotic cells. The…

Q: 1. The impact and severity of epidemic diseases on a given population are often determined by…

A: Epidemic diseases have been a major problem throughout human history. They are often determined by…

Q: You have a petri dish containing 1 x 106 adherent cells. You have a vial of poliovirus with a…

A: Virology is a field of microbiology that studies many forms of viruses, covering their features,…

Q: Extension Questions 14. Other polar molecules include nucleic acids and some proteins. Look at the…

A: Deoxyribonucleic acid, also known as DNA, is a negatively charged polydeoxyribonucleotide…

Q: You are interested in studying the evolution of Rnase-based gametophytic self-incompatibility. You…

A: Explanation: -Assuming random dispersal of pollen, the fraction of S1 pollen grains that will be…

Q: What are the advantages and disadvantages of producing asexually especially in algae and seaweeds?

A: Introduction :- A broad and varied collection of photosynthetic eukaryotic organisms are…

Q: Can the carbohydrate enzymes be genetically engineered

A: Genetic engineering used in gene therapy, manufacturing drugs etc.

Q: H. H PROTEINS: Dipeptides and polypeptides Complete the diagram to show how amino acids react to…

A: Introduction :  Amino acids are building blocks of proteins that play many important roles in the…

Q: The graphical theory of life history evolution predicts that semelparity will evolve when there is…

A: Introduction:   The ability of an individual to produce offspring per breeding event or lifetime is…

Q: Explain the following terms and what are its corresponding requirements for Raman applications: a.…

A: Confocal microscope Cytation C10 confocal imaging reader combines automated confocal and widefield…

Q: Explain how studying variants could help scientists identify genes that are related to specific…

A: Genomics is the study of genomes, genomes include full information about an individual's genes and…

Q: Imagine a cell can perform exocytosis, but only minimal endocytosis. What would happen to the cell?…

A: Exocytosis is the process of ejecting materials from the cell, whereas endocytosis is the process of…

Q: When do chromosomes condense during the cell cycle? OG1 phase OG2 phase OM phase OS phase

A: Mitosis is the stage of the cell cycle in which newly formed DNA is separated and two new cells with…

Q: 2', 3'-Dideoxyinosine has been approved as an anti-HIV drug. Propose a mechanism by which it might…

A: The management of HIV/AIDS normally includes the use of multiple antiretroviral drugs in an attempt…

Q: Helper T cells that have been activated   a Can activate macrophages b Can stimulate cytotoxic T…

A: The major histocompatibility complex, abbreviated as MHC, is a set or group of glycoproteins that…

Q: It means both dominant and recessive traits heterozygous homozygous genotype phenotype

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Starvation proteins are produced by a crop during which of the following segments of the growth…

A: Introduction :- The log, or exponential, phase is characterised by the cells growing at a constant,…

Q: Shown here is a monosachharide. How many total forms of this sugar are there? 1CHO н 2 он 3 H ОН…

A: Monosachharide  They are the simplest form of sugar and are basic unit of large carbohydrates.

Q: Mitosis or meiosis?

A: Paramecium is an eukaryotic protozoa. It contains two types of nucleus -the larger one is…

Q: 22. State the channels involved during an action potential in cardiac CONTRACTILE cells and then…

A: In order to understand how an action potential is generated in cardiac contractile cells, it is…

Q: mpare and contrast ionic, covalent, and hydrogen ds. How do these bonds work? Do they form between…

A: Everyone here tries to gain stability and so is the atom. An atom also try to gain the stability by…

Q: As you are performing this protocol, you realize that the ultraviolet (UV) light does not work as…

A: Introduction A gene is a DNA segment that encodes for protein or RNA (ribonucleic acid). It is the…

Q: Label the Amoeba and Identify whether it is eukaryote or prokaryote and Indicate the type of…

A: An amoeba often called an amoeboid, is a type of cell or unicellular organism which has the ability…

Abiogenesis