Can you explain why people “cursed” by shamans or “witch doctors” sometimes actually die?

Q: Suppose that the string of A nucleotides following the inverted repeat in a rho-independent terminat...

A: Rho-independent termination (also known as intrinsic termination) is a transcriptional termination m...

Q: Define recessive

A: Recessive refers to a trait that appears only when a genotype is homozygous; a trait that is hidden ...

Q: Why is transcription a particularly important level of gene regulation in both bacteria and eukaryot...

A: Transcription is the process in which formation of mRNA take place on a DNA template. This process i...

Q: Look again at Fig. 43.12. Imagine that a different novel antigen is added on day 40 rather than a se...

A: The foreign substance responsible for showing reaction with antibodies can be referred to as an anti...

Q: 1. Describe the movement of amoeba on microscopes. 2. Describe the movement of the euglena on micros...

A: Under microscope, amoeba draw and withdraw the pseudopods while changing shape called amoeboid movem...

Q: Which of the following experimental techniques was used by Hershey and Chase to establish the geneti...

A: Answer : option 3) Isotope labelling is correct.

Q: Sister chromatids segregate during

A: Sister chromatids segregate during Meiosis II.

Q: Which of the following features is associated with the Watson and Crick model of the DNA?

A: 1. Watson and crick described that DNA strands right which twisted around each other forming right h...

Q: A bacterium synthesizes DNA at each replication fork at a rate of 1000 nucleotides per second. If th...

A: Introduction :- During DNA replication, the replication fork is a structure that arises within the l...

Q: A number of scientists who study cancer treatment have become interested in telomerase. Why? How mig...

A: Cancer is a gathering of in excess of 100 unique sicknesses. It can foster any place in the body. No...

Q: In Darwin's theory of natural selection, which of the following is a source of evolution: a.Individu...

A: c.Individuals with random mutations who are able to reproduce.

Q: Explain the roles of presynaptic inhibition and of facilitation

A: Nerve cells work together in clusters to affect each other's functions. The benefit of presynaptic f...

Q: Name six different levels at which gene expression might be controlled.

A: The process of turning on a gene in a cell to create RNA and proteins. The RNA, the protein made fro...

Q: How many nucleosomes are involved per turn of the spiral arrangements of the chromatin fiber?

A: Chromatin and chromosome are referred to as the structures associated with the DNA molecule. Double-...

Q: What is the difference between global warming and the greenhouse effect?

A: All living and non-living things that are found naturally, that is, not artificially, are included i...

Q: How does biogeography explain the theory of evolution?

A: Introduction :- The study of the geographic distribution of plants, animals, and other forms of life...

Q: Make a timeline summarizing the important discoveries, events and people involved in the history of ...

A: Timeline summarizing the important discoveries, events, and people involved in the history of geneti...

Q: Can we manage future agricultural production in ways that feed the growinghuman population in a sust...

A: The quantity of food humans generate today versus the amount required to feed everyone in 30 years f...

Q: If a recessive mutation occurs in a male on an X chromosome versus a Y chromosome, leading to steril...

A: The males have two different sex chromosomes, X and Y. The females have only a single type of sex ch...

Q: Briefly describe Mendel’s rule of inheritance: segregation and independent assortment

A: Mendel proposed laws of inheritance namely law of segregation and laws of independent assortment by ...

Q: Explain how the type of locomotion is important in the nutrition, ecology, and behavior of each type...

A: Protozoan perform three type, flagellated ciliary or amoeboid locomotion. Amoeboid protozoan live in...

Q: frequencies

A: Abstract Behavioral isolation is thought to arise early in speciation due to differential sexual and...

Q: Which is the dominant form of DNA found in the cell? (A z BA с) н D) B

A: The self-replicating biomolecules, that are present in the chromosomes and carries genetic informati...

Q: After _____ are absorbed by intestine cells, they go into lymph vessels rather than blood. A. minera...

A: ANSWER :LIPIDS

Q: All but one species of large birds native to New Zealand’s tropical forests are now extinct. Numbers...

A: The term evolution is associated with a natural process that plays an important role in allowing the...

Q: What enzyme is missing in the Ahxk2 cells, and what reaction does the enzyme catalyze?

A: Wild type cells are usually considered as dominant. Here wild type cells (white) and hexokinase muta...

Q: What groups within a phylum from invertebrates should be elevated into their own phylum? Explain.

A: Vertebrate and invertebrate are clearly divided are separated by presence and absence of vertebral c...

Q: Provide a example of a plant that possess only a primary body and another that has both primary and ...

A: In plants; the Primary plant body is chiefky consists of apical meristem;this apical meristem divide...

Q: Where can KecKzia rhizonkila, Escherichia coli, and Bacillus subtilis generally be isolated from in ...

A: Introduction: Microorganisms are widespread in nature. In the five-kingdom classification, they are ...

Q: Find a genetically modified organism of interest. What organism is the origin of the coding sequence...

A: GMO stands for the genetically modified organism, a type of life form whose genome has been altered ...

Q: Supercoiling of DNA A requires GTP as source of energy B is not observed in eukaryotes (c) requires ...

A: Requires the action of topoisomerases. Option-C

Q: Using Benedict's Test would the substance (saliva + acid + potato chips) test positive or negative? ...

A: Benedict's test is used for the identification of reducing sugars such as simple carbohydrates (gluc...

Q: QUESTION : How did the bacteria maintain its homeostasis when homeostatic disturbance occur.  Explai...

A: The bacteria the example of prokaryotic organisms that do not contain any membrane bound cell organe...

Q: What are the main reasons for gaps in the fossil record?

A: Fossils are the naturally preserved remains of dead organisms or plants which existed in the geologi...

Q: Which bases can exist in imino form? O Adenine, Cytosine Guanine, Thymine O Adenine, Cytosine, Guani...

A: Mutations are alterations occur inside the body naturally or induced . As a result of which , geneti...

Q: 1. Describe the basics of flow cytometry. How is this technology used to sort cells?

A: Bioinstrumentation, also known as biomedical instrumentation, is a branch of biomedical engineering ...

Q: All statements are related to blood sugar, Select the one that is NOT true.

A: Blood sugar it is the very important component in living organisms, it is also known as glycaemia. S...

Q: 1. How can the flagellum of euglena enable it to move? 2. What is the importance of eyespot and gull...

A: 1. Before directly knowing about how the flagellum of euglena enable it to move we should know about...

Q: Which statement is not true? A. most people in the world cannot digest milk sugar as adults B.rabbit...

A: Question 1:-  A) Statement A is correct as 40% of humans stop producing enough lactase to digest mil...

Q: What are the two basic types of terminators found in bacterial cells? Describe the structure of each...

A: A transcription terminator is a nucleic acid sequence which indicates the termination of a gene or o...

Q: Make a diagram/interpretation of the feedback mechanisms involved in regulating processes in the fem...

A: The female reproductive processes are highly regulated by different hormones released by endocrine g...

Q: Which special set of enzymes in bacteria can address concerns on supercoiling when the DNA performs ...

A: During replication and translation, when there is unwinding of the DNA helix, it introduces supercoi...

Q: The redundancy of the genetic code means that some amino acids are specified by more than one codon....

A: A codon is the nucleotide triplet that encodes an amino acid. The three-letter nature of codons mean...

Q: What are some of the costs and benefits to an apple tree and to the honeybee that pollinates it?

A: Symbiosis is a generic term for interspecific interactions in which the two species live collectivel...

Q: What are the histone types found in the octamer wrapped by DNA strands?

A: Introduction: The DNA is wrapped around the histone protein, and the structure formed is called a nu...

Q: What different methods were used to help break the genetic code? What did each method reveal and wha...

A: Deoxyribonucleic acid contains genetic information of an organism. The main function of genes is to ...

Q: In prokaryotes, histone-like proteins are all positively charged proteins that bind DNA non-specific...

A: Bacterial DNA binding proteins, also referred as histone-like proteins, are a class of tiny, typical...

Q: In a food chain, on average, of the food is burned for energy and exhaled and the energy becomes was...

A:   INTRODUCTION  The Food chain is an series of organism by uptaking the energy and  nutrients then o...

Q: 3. A more complete definition of fitness is the ability to survive and produce offspring who can als...

A: Introduction :- The ability of a species to reproduce in its environment is referred to as evolution...

Q: How do the elements in phloem such as sieve tubes, companion cells, phloem fibres and phloem parench...

A: introduction:-Tissues are collections of cells that have a similar structure and work together to fu...

Stress

Stress is defined as the feeling of being overwhelmed or unable to cope with emotional or mental pressure. Any event or action that makes a person annoyed, furious, or nervous can trigger it. Chemical changes in the body caused by stress can cause blood pressure, blood sugar levels, and heart rate to rise.