Biology Question

Q: What are the reasons why the products based on onion and garlic that use against COVID-19 can be…

A: Generally, intake of onions could help build immunity to protect against infections. Onions are…

Q: Create a Dichotomous key that includes Human Pig Aye aye Koala Giant panda

A: A dichotomous key is a useful scientific tool for identifying various organisms based on their…

Q: Compute for the CFU/ml of drinking water. Is this Passed or Failed based on the Philippine National…

A: Drinking water is the water that is used in drink or food preparation. The potable water is that…

Q: 3. Which of these are pioneer species for primary succession? Select all correct answers. a. moss…

A: Pioneer species defind as the species that first make colony in new habitat created by…

Q: An individual heterozygous for 3 genes, Aa Bb Cc are test-crossed to aa bb cc and 1000 progenies are…

A: Note: There is an error, Abc - 145 instead it should be, ABC - 145. Given: An individual…

Q: You apply a drug to a batch of neurons and record membrane potential changes in the presynaptic and…

A: Here membrane potential raises from -70mv to - 55mv.  That means depolarization occurs.  At…

Q: on 1: Explain the ethical considerations in germ line gene therapy. Question 2: Give examples…

A: Gene therapy is a technique in which a person with a hereditary condition is treated by transferring…

Q: In an anabolic reaction   A. biological molecules are broken down and the Gibbs free energy…

A: Biological macromolecules are the molecule that are needed in more amount for the body.  Major…

Q: Sickle cell anemia is a genetically inherited autosomal recessive trait in which results in a…

A: a) The homozygous individuals of sickle cell anemia are affected, their frequency can be represented…

Q: Which of the following may be true of two species that are a result of allopatric speciation? Select…

A: Speciation is the process of formation of new species. When mutations accumulate in the organisms…

Q: List three major CONSEQUENCES of the lack of telomeres, based upon what you know about their normal…

A: Telomere- Telomeres are distinctive structures found at the ends of our chromosomes. They are…

Q: Discuss the two mechanisms that result in the termination of transcription - How do they differ and…

A: Transcription is a process in which RNA is synthesized with the help of the template strand of DNA…

Q: Neurons supplying smooth muscle secrete histamine display receptors only on the dendrites create…

A: Introduction  Neurons (also known as neurones or nerve cells) are the basic units of the brain and…

Q: What is the concavity on the medial surface of left lung called?

A: The lungs are two spongy, air-filled organs on either side of the chest (thorax). The trachea…

Q: List three ways that enzymes can become denatured and lose their function.

A: Enzymes can denature and lose their functions by following ways -  Increase of temperature…

Q: (A) How is the evolution of the relationship between predator and prey like an rms race? (B) Why is…

A: A predator is a mammal that hunts, kills, and consumes other animals. Prey are organisms that are…

Q: What evidence is found in the fossil record that shows that early ancestors of humans walked upright…

A: Orrorin tugenensis fossil that include the teeth and two thigh bones was found in 2000 in Kenya. The…

Q: Can lactic acid culture infect the human gastrointestinal tract? If yes, why is this method not used…

A:

Q: d. What is the risk (probability) that the fetus is affected? Show solution. Express final answer as…

A: Answer :- d) Duchenne muscular dystrophy is a genetic disorder It is a x linked recessive disorder…

Q: . Illustrate the different types of Microtome. a. Identify its uses b. Identify its different parts…

A: In biology, microscopic studies are important to study the structure and organisation of different…

Q: A) Explain what is meant by group selection. (B) How is kin selection different from group…

A: A) Explain what is meant by group selection. (B) How is kin selection different from group…

Q: 12. Some plants need more light than others to survive. Knowing this, explain how the following…

A: Introduction Ecological succession is a process by which species structure is changed over time.…

Q: Discuss the regulation of the tryptophan operon. How does this story change under the two…

A: Introduction: The trp operon is a collection of genes found in E. coli bacteria that code for…

Q: Directions: Drag and drop the labels onto the plant cell diagram. In the space below, describe the…

A: Ans: Plant cells like animal cells are eukaryotic entities that have membrane bound organelles. The…

Q: 5'-GATTACAATAGGAATTC~~ GAATTCTCGTGACTCCG-3' 3'-CTAATGTTATCCTTAAG~ CTTAAGAGCACTGAGGC-5' Which of the…

A: PCR or polymerase chain reaction is a DNA amplifying technique where a short piece of a gene or a…

Q: Consider the following types of cells: F+, F-, Hfr, and F’ cells. Which of these four types of cells…

A:

Q: During which of the following phases do the chromosomes separate and move to opposite side of the…

A: Cell division is the process through which a mother cell splits into two or even more daughter…

Q: Which event occurs during interphase?​ a. The nucleus divides. b. Protein synthesis is halted. c.…

A: Cell division can be either mitosis or meiosis. Meiosis is a cell division that produces the gametes…

Q: transcribed RNA

A: Transcription is the process of copying a segment of DNA into RNA. Only one of the two DNA strands…

Q: Please explain why Cucumis bloomingtonii is sterile.

A: Sterile  The plant or animal which can't produce viable gametes.

Q: Match the polymer to its monomers. protein polysaccharide enzyme starch deoxyribonucleic acid…

A: Biomolecules occurs naturally in living organisms. All forms of life have biomolecules as their…

Q: Describe the genetic makeup of a plasmid in an F’ cell, including the types and origins of genetic…

A: Plasmids are DNA molecules that exist outside of the chromosomes. They are microscopic, round, and…

Q: 4. What are the respective functions of the separation of homologous chromosomes and the separation…

A: Separation of chromosomes in meiosis has two main functions to reduce half total number of…

Q: fishes swim bladders

A: Swim bladder is located in the dorsal cavity lying just under the spinal cord in the coelomic cavity…

Q: H2O2 (Hydrogen Peroxide) is compared between the sedentary person and the active, who has the higher…

A: Hydrogen peroxide is a reactive oxygen species,it act as an oxidising molecule, and mainly produced…

Q: Discuss the impact of Genetics in human lives Concept in Focus

A: Genetics is the study of factors responsible for heredity, variations and environmental conditions.…

Q: Which of the following is NOT one of the two tissue layers of a cnidarian? A. outer epidermis B.…

A: The germ layers are responsible for production of different tissue types in living organisms.…

Q: Which of the neuroglial cell types shown form myelin sheaths within the CNS? OA Ов Ос F

A: Neuroglial cells Neuroglia or glia or glial cells are non-neuronal cells present in brain and spinal…

Q: 1 what kind of maccomlecule is shown Carboltydrates 2₁ Identify the bond between 1 and 2

A: Carbohydrates are macromolecules is made up of a large number of monosaccharides units, glucose,…

Q: how does the base sequence contained in the telomeric regions of chromosomes differ from that found…

A: Telomere Telomere is a special structure having unique DNA which is located on the end of each…

Q: 20. Animals may utilize ornamentation such as bright colors as well as take part in elaborate…

A: In case of polygamous condition, one organisms atrract their opposite sex by special features…

Q: 49. The "killer" yeast phenotype is caused by A. tyramine production B. production of fusel alcohols…

A: INTRODUCTION Killer yeast They are yeast like Saccharomyces cerevisiae that can produce toxic…

Q: 22. When investigating the shell color of a species of snail found only in a remote area seldom…

A: During the process of evolution, some changes may favour the species but others may be unfavourable…

Q: Identify the fixation and embedding protocols of seed tissues for microtome sectioning? How thin…

A: Microtome A microtome is a mechanical instrument which is used to make thin slices of tissues. Thes…

Q: Alu elements in the human genomes are examples of: A. SINE elements B. LINE elements C. Autonomous…

A: Answer :  Alu elements in the human genomes are examples of  A. SINE elements

Q: Which of the following can typically decrease genetic variation? Otoxins O predator-prey…

A: Evolution is a steady phenomenon which bring about a change and transform the life from simple one…

Q: After an extensive forest fire, an affected region of the forest shows signs of ecological…

A: Ecological succession Ecological succession refers to the change and development of a system over…

Q: Scientists today can use many investigative methods to study evolution. Which method was developed…

A: Introduction  Evolution is the process of a species' characteristics changing over several…

Q: 4. Which level of protein structure do proteins need to function (there may be more than one correct…

A: Primary structure of protein is correct odering of amino acids chain.  Exact sequence is very…

Q: In chromosomes, doubly-stranded DNA wraps tightly around histone proteins. Think about the structure…

A: DNA It is a biomolecule that carries genetic information and information for the process of protein…

Genetic Recombination

Recombination is crucial to this process because it allows genes to be reassorted into diverse combinations. Genetic recombination is the process of combining genetic components from two different origins into a single unit. In prokaryotes, genetic recombination takes place by the unilateral transfer of deoxyribonucleic acid. It includes transduction, transformation, and conjugation. The genetic exchange occurring between homologous deoxyribonucleic acid sequences (DNA) from two different sources is termed general recombination. For this to happen, an identical sequence of the two recombining molecules is required. The process of genetic exchange which occurs in eukaryotes during sexual reproduction such as meiosis is an example of this type of genetic recombination.

Microbial Genetics

Genes are the functional units of heredity. They transfer characteristic information from parents to the offspring.