With regards to small pox disease,describe the difference between variolation and vaccination and explain why vaccination is a better choice

Q: 3- a muscle contracts more forcefully if: a- its motor units contracted simultaneously. b- the amoun...

A: Muscle contraction is regulated through the the function of alpha motor neuron/lower motor neurone w...

Q: Use the chart to categorize the following.  Rose  Mushroom  E. coli  Algae  Chloroflexia  Human  Met...

A: Introduction: Nutrition is the sum of all those activities which are concerned with ingestion, diges...

Q: Font Styles White-eyed fly x Red-eyed fly Number of Offspring Phenotype of Offspring red eyes (norma...

A: As per our company guideline we are supposed to answer only first question or first 3 sub parts of t...

Q: The effective-refractory period present during Phase 2 of the action potential of ventricular myocyt...

A: A transient shift in membrane permeability across the cellular membrane of cardiac cells is known as...

Q: Why is extra primers added to the pcr reaction?

A: Introduction :- The polymerase chain reaction, or PCR, is a chemical reaction used by molecular biol...

Q: Draw and describe the different stages of meiosis of a cell with 6 chromosomes

A: Meiosis is a procedure in which a single cell divides twofold to form four cells with half the numbe...

Q: (i) The phenomenon by which living or dead plant cells absorb water by surface attraction. (ii) The ...

A: Urinary system- includes pairs of kidneys, ureters, and urinary bladder. The kidney produces renin t...

Q: 13. The repeating unit a. in human DNA telOmeres is TTTCAT b. in humon DNA telomeres is TTACGG c. in...

A:

Q: Describe the spinal cord according to: A. location B. shape and length C. vertebral levels of upp...

A: Note :- Since you have asked multiple questions im only answering the ist 3 as per bartleby guidelin...

Q: Put the numbers of the cell pictures in the correct order to show the sequence of stages in meiosis....

A: 1. Anaphase 1 2. Anaphase 2 3. Prophase 1 4. metaphase 1

Q: To protect oligotrophic lakes from eutrophication, it is important to

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Q: vetebrae

A: The vertebrae regions shown here are the cervical , thoracic and the lunbar vertebrae . 

Q: What explanations can account for the following pedigree of a very rare trait? Be as specific as pos...

A: The pedigree analysis helps us identifying the mode of inheritance of a particular disease by observ...

Q: . In preparing a slide, what is the significance of heating the sample after it is stained?

A: 2.Fixation is often achieved either by heating (heat fixing) or chemically treating the specimen. In...

Q: Noncompetitive inhibition can often be explained by which of the following models? the induced fit m...

A: The action of enzyme depends on different factors. Enzymes are biocatalysts in nature. All the react...

Q: In photosystem II of the photosynthesis light reaction, water is broken. What three products are rel...

A: Introduction :    In thyllakoid lumen,  water and salt present.  Here photolysis of water takes plac...

Q: the protein you are making is one that is not destined to be secreted into the extracellular space, ...

A: In a eukaryotic cell, all protein translation begins in the cytoplasm (except for a few proteins mad...

Q: During exercise, activation of alpha-adrenergic receptors in skeletal muscle arterioles: A)is oppose...

A: *There are three types of adrenergic receptors are present alpha beta-1 beta-2 *Alpha receptors ca...

Q: Evaluate marine protected areas and reserves as solutions for conserving biodiversity

A: With the sole aim of conserving endangered marine species, marine protected areas and reserves have ...

Q: What are the main elements of Darwin's theory of evolution?

A: Introduction :- Natural selection, according to Charles Darwin's theory of evolution, is how evoluti...

Q: Give at least 3 reproductive (prezygotic) isolating mechanisms? Briefly discuss how it isolates indi...

A: The reproductive isolation mechanisms are a set of evolutionary mechanisms, behavioural, and physiol...

Q: What valuable information can an archaeologist gain from understanding the connections between long-...

A: Archeology gives us the chance to find about past culture through the investigation of artifacts, an...

Q: Label all the visible parts of this stem cross section of gumamela. Also, provide an appropriate des...

A:  The Gumamela scientific name is Hibiscus rosa-sinensis. Commonly known as China rose.it is an everg...

Q: In the following graph, curve (line) N represents a vascular function curve (venous return curve) in...

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Q: Which of the following explains infants' ability to tell the difference between new and old stimuli?...

A: *A newborn baby recognizes his mother voice and pay little attention and baby will see toy this is c...

Q: A difference between bacterial and eukaryotic translation is Multiple Choice translation can begin o...

A: A difference between bacterial and eukaryotic translation is A. translation can begin on an mRNA sti...

Q: To successfully obtain Forest Stewardship Council certification, a forest operation must

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Q: 55- For antigravity muscles, firing the medulla leads to: A. Decerebrate Rigidity C. Excitation the ...

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Q: 8. The following diagram represents the Christmas-tree-like structures during transcription. On the ...

A: Introduction: A single nucleic acid strand has a backbone composed of repeating pentose-phosphate un...

Q: Why is a balanced frequency of different alleles of a gene in a population more useful for the survi...

A: Introduction In this question we will discuss why is balanced frequency of different alleles of a ge...

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A: Autosomal dominant disorder inheritance The dominant autosomal mutated gene cause the defect in gene...

Q: What factors determine a species?

A: Species It is defined as the largest group of organisms in which two individuals are capable of repr...

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A: Membranes are primarily composed of a bilayer of lipids(fats). In addition to lipids, there are prot...

Q: In pea plants, the traits below exhibit the following dominance patterns: Recessive Expression: Wrin...

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and s...

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Q: Name three industrial fishing practices, and explain how they result in bycatch and marine habitat d...

A: Fishing practices are employed to sustain the ever-growing human population. However, it comes with ...

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A: Bacteriophages are a large category of viruses with a wide range of characteristics. DNA or RNA can ...

Q: What kind of mutations are most likely to cause genetic diseases? A. Mutations in somatic cells B....

A: Here 1st scenario based on mutation and 2nd question based on genetic analysis. I answered you all, ...

Q: 45. Refer to the drawings in Figure 13.2 of a single pair of homologous chromosomes as they might ap...

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Q: Meiosis: Events Put the letter of each meiotic stage next to the correct event. Use each answer choi...

A: meiosis is a type of cell  division in which the daughter cells have half the number of chromosomes ...

Q: 6. By incubating cells with an inhibitor of TFIIH helicase activity. Which step in the transcript wo...

A: Answer - The initiation & the starting of the elongation process will be stopped if the cell is ...

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Q: QUESTION 14 (1) In action potential's all-or-none law, a sub-threshold depolarization won't trigger ...

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Q: Compare and contrast Replication of DNA in prokaryotes and eukaryotes

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A: This question belongs to the function of electron transport chain.

Q: Compare and contrast TRANSLATION in prokaryotes and eukaryotes

A:

Q: During a bout of heavy exercise, terminal resistance arterioles in a muscle may dilate and transient...

A: A state of "physical fitness" can be defined as a condition of well-being. Bodily health is a genera...

Q: 50- Cerebellum can get information about movement: a- Corticopontine - cerebral c- Corticospinal tra...

A: Introduction: The cerebellum receives information from the sensory systems, the spinal cord and othe...

Q: A person traveled to Asia and is having trouble with jet lag. What would be the best way to get used...

A: Answer Jet lag, also known as jet lag disorder, is a transitory sleep issue that can affect anybody ...

Q: What is genetic equilibrium?

A: Generic equilibrium is the result of the Hardy-Weinberg law, which is a scientific principle stating...

Viral Infections

Viruses are abundantly found, minute entities that have genetic material enclosed within a protein coat. The proteinaceous material enclosing the genetic material of the virus is called a capsid. The genetic material could be either DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). A virus is too minute to be looked at with naked eyes and therefore visualized with the help of a microscope. They are acellular entities that require a host for processes, such as replication, transcription, translation and multiplication. Plants, animals, and bacteria act as host wherein the virus reproduce. Viruses cannot multiply outside the host's body and thus are considered nonliving outside the host body.