B. What effect would the loss of nitrogen fixers have on the nitrogen cycle and the world? Justify your answer.

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

A: ANSWER: Shamanism is a religious practice that involves a practitioner (shaman) interacting with wha...

Q: An X-linked dominant allele contro eceptor mutation that is responsi aldness (MPB). A father who sho...

A: X related qualities are traits that are found on the X chromosome. There are Gerenally well known to...

Q: Which of these choices does NOT explain why RNA is less stable than DNA? O The 2' hydroxyl group all...

A: There are two types of genetic material in organisms: DNA RNA

Q: One of the major questions of regeneration is whether the cells keep a “memory” of what they had bee...

A: Muscles are specialised bodily parts that allow animals to move or locomote. Muscle tissues make up ...

Q: Which of the foll owing characteristi cs about homologous chromosomes in somatic cells is false? O T...

A: Option 1 is the correct answer as alleles can be different.

Q: Question 8 The unique stem-loop structures of the transfer RNA helps the RNA perform its function of...

A: RNA is ribose nucleic acid, having mainly 3 forms. t-RNA--transfer RNA r-RNA -- ribosomal RNA m-RNA ...

Q: Why don’t viruses expose their fusion loops prior to entry?

A: ANSWER;- Viral membrane fusion is the process by which encompassed infections enter host cells. It i...

Q: Based on their anatomical and behavioral differences, biologists previously placed humans and chimpa...

A: The method of determining the nucleic acid sequence - the order of nucleotides in DNA – is known as ...

Q: MATCHING about feeding types bulk feeders [Choose ] sponge, tube worm, baleen whale suspension feede...

A: Bulk feeder - human, orca, eagle. Suspension feeder - sponge, tube worm, baleen whale. Detritovore/d...

Q: Briefly describe the lac operon and how it controls the metabolism of lactose.

A: A lac operon is a set of genes that share a single promoter. The genes in the operon code for protei...

Q: (functional or structural)

A: 1 In this study, LTP was induced using a stimulating electrode to induce a brief high-frequency trai...

Q: If you were a part of the research teams conducting such phenomenon (the covid-19 vaccines testing o...

A: Covid 19 is a highly deadly disease which affected many countries .  Vaccines are the only protectin...

Q: Relate the organizational similarities of all cells to the need to conduct essential life functions.

A: Introduction: Cells are the building blocks of life. They've been organized in numerous ways to serv...

Q: Define the three types of regulation involving RNA ?

A: Introduction: Gene regulation is the process of controlling the expression of genes by varying the l...

Q: Listed in parts a through g are some mutations that were found in the 5′ UTR of the trp operon of E....

A: Introduction: To generate the amino acid tryptophan, E. coli has a trp operon that codes for enzymes...

Q: In a monohybrid intercross of violet pea flowers with white pea flowers, Mendel observed an F2 compr...

A: Mendel's Heredity Laws are commonly phrased as follows: 1) The Law of Segregation: A gene pair defin...

Q: Relate the structure of cilia and flagella to their functions.

A: Introduction: Microtubules are formed of tubulin proteins that make up the filamentous tubular struc...

Q: Define the Comparison of Gene Activity ( +or -) in the Presence or Absence of Lactose for Various E....

A: The expression of the lac operon is regulated by operator sequence and repressor protein.

Q: State the concept of Isolation of the Repressor ?

A: Jacob and Monod propose a negative control strategy in which certain genes, called regulatory genes,...

Q: During the initiation of translation in bacteria, the small ribosomal subunit binds to which consens...

A: A gene is a DNA-based functional heredity unit that delivers instructions for the production of RNA ...

Q: Question 8 The unique stem-loop structures of the transfer RNA helps the RNA perform its function of...

A: tRNA (Transfer ribonucleic acid) is one type of RNA that is used in translation machineri to decode ...

Q: Define about cyclic adenosine monophosphate (cAMP) ?

A: Introduction: cAMP is abbreviated for cyclic adenosine monophosphate. It is generally formed when th...

Q: How does agriculture, economy and plant physiology interconnected?

A: The term Agriculture, economy and plant physiology though seems to be different, they are actually i...

Q: H,0 Pure water Positive pressure Negative pressure H,0 H20 H,0 Solute A В C

A: Water potential: it is the potential energy of water per unit volume in comparison to pure water und...

Q: Fertilization does not take place in a moment of passion. It occurs four to five days later. Maybe i...

A: To understand the above situation of fertilization please read the below process to have a better un...

Q: 1 4 2 6 7 3.

A: Cartilage and Bone are types of connective tissue and are composed of cells embedded in an extracell...

Q: What is the diameter of the field of view (DFV) of a 1000x objective lens if the DFV of a 400x objec...

A: Given: Objective lens 1 magnification= 1000x DFV1 = ? Objective lens 2 magnification= 400x DFV2 = 50...

Q: How will the offspring be affected if one of the gametes or one of the parents carries an impaired n...

A: Any syndrome marked by deformities or malfunctions in any of the body's systems and caused by an abe...

Q: There are three termination codons (UAA, UAG, UGA) but usually only one initiation codon (AUG) is us...

A: A codon is a DNA or RNA trinucleotide sequence that codes for a certain amino acid. The genetic code...

Q: What is your opinion/stance on biofuels as an alternative energy source?

A: In my view/opinion I consider Biofuel is best alternative energy source. But there are both pros and...

Q: Questión 15 The following statements best describes the RNA structure EXCEPT A it is usually single ...

A: Answer : Option D is correct. - according to the question asked above, option (d) cannot describe th...

Q: Question 11 The A and B forms of DNA A are both left handed helix B are both right handed helices (c...

A: DNA is a dioxyribose nucleic acid. Which has made up of 2 polynucleotides strands coiled around each...

Q: Describe how modern organisms can be used to determine evolutionary relationships.

A: Evolutionary relationships between organisms can be inferred using modern organisms that are alive t...

Q: The long solenoid structure of the chromatin material binds to a protein scaffold through the SARS o...

A: The solenoid model of DNA is the packaging of DNA in case of eukaryotes.  Short region of DNA doubl...

Q: In what way do the nitrogen and phosphorus cycles regulate Earth’s carboncycle?

A: The term biogeochemical cycle is associated with the movement of several nutrients such as phosphoru...

Q: Describe shunting inhibition. What is the cellular mechanism, and how does it cause inhibitory effec...

A: Shunting is a neuronal event that happens when an excitatory postsynaptic potential and an inhibitor...

Q: In the trp operon, what happens to the trp repressor in the absence of tryptophan?a. It binds to the...

A: An operon is a DNA unit that contains a cluster of genes controlled by a single promoter. The genes ...

Q: In Figure 4-6, why does the diagram not show meiosesin which two crossovers occur between the same t...

A: Crossing over is a process that takes place only and only between the chromosomes that are homologou...

Q: 3. The indicator used for inclusive learning a) Olfactory indicator c) Universal indicator b) Synthe...

A: Introduction  Inclusive learning is the method of teaching which ensures the participation of all st...

Q: temperature using δ18O of planktonic (surface floaters) foraminifera back through time at one site i...

A: Introduction The deuterium excess is sensitive to kinetic fracationation processes that occur during...

Q: In The Lake as a Microcosm, this 10th century biologist showed that romoving just one species trom a...

A: The correct answer to the given option is d. A microcosm is a widely studied isolated system and thi...

Q: Having identified the genetic identity of the parent cats, fully proof your answer to show the simul...

A:     One copy of the genetic code is known to be inherited from the mother's parent with the he...

Q: Question 1 A What is the sequence of the sample DNA submitted for sequencing given the gel electroph...

A: Sanger sequencing is a method for determining the nucleotide sequence of DNA using a chain terminati...

Q: The final amount of each primer required in a PCR reaction is 25 picomol. If the total volume of the...

A: This is a dilution based calculation. We can dilute a stock solution to get the desired concentratio...

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

A: Introduction: The two DNA strands are antiparallel means that 5’ end of one strand faces 3’ end of o...

Q: The purification continues with a cation exchange step in which the positively charged cytochrome C ...

A: A linear XY linear graph for the equation. A straight line "y = mx + b" where y = absorbance at 595 ...

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

A: ANSWER :LIPIDS

Q: Describe the experimental evidence that demonstrates that living organisms come from other living or...

A: Cells, the most fundamental unit of life, are found in all living things. All of life's vital activi...

Q: How do heredity and environment affect intelligence?

A: Heredity, often known as inheritance or biological inheritance, is the transfer of attributes from p...

Q: Why must a plant or animal make trade-offs among growth, reproduction, defenses, and other adaptive ...

A: Introduction: A tradeoff is a decision based on the current circumstances that involve giving up one...

Metabolic pathways

Metabolism is defined as the group of life-supporting, enzyme-mediated chemical reactions in organisms. A metabolic pathway is a set of these chemical reactions that involve anabolism (synthesis of complex biomolecules) and catabolism (breakdown of biomolecules into small molecules) that occur inside a cell. Metabolites are the reacting substances, products, and intermediate substances of an enzymatic process that are altered by a series of chemical events catalyzed by enzymes.