Why is the Salk vaccine not going to chaise a disease?    -it has been altered to evade the immune system.      -it is not taken up by the digestive tract.    -it is not a virus.

Q: How do the cells become organized into functional organs?

A: Introduction Life starts from a single cell called Zygote. A zygote is formed by the fusion of the m...

Q: 1. Explain the pattern of inheritance and write in the genotypes of the numbered individuals. (a) (b...

A: The autosomal dominant or X-linked dominant disease is called single gene disorder as the disease re...

Q: When during the development of most mammals is lactose available for use by E. coli in the gut? How ...

A: Introduction  The bacterial lac operon is primarily based on Lactose and deals with the breakdown of...

Q: A new virus variant has a protein with the following amino acid substitutions: S25K, L72F, T931, G12...

A: b) G1227D  C) S25K , L452R , L681R  a) A155G 

Q: How do soil impact the biogeography of a region? Explain using an example. word count 200-300

A: There are different types of soil found around the world, the factors that made the soil of a region...

Q: Give 10 examples of house items that contain biological molecules

A: Biomolecules are an organic molecules that includes lipid, carbohydrates, protein and nucleic acid.

Q: Organizations that aim to protect the rights of animals have been battling leisure breeders to stop ...

A: Animal breeding is basically a type of animal science which help in development of superior animal l...

Q: You have been asked to determine the bacterial count in a sample of water. The number of CFU from 1 ...

A: The CFU count is the number of viable cells per ml of the sample. The CFU count is done on the basis...

Q: Why can wet soils occur both near the equator, where rainfall is high, and at high latitudes, where ...

A:  wet soils occur both near the equator, where rainfall is high, and at high latitudes, where rainfal...

Q: What is the underlying molecular mechanism of action for the antibiotic novobiocin?

A: Streptomyces niveus produces Novobiocin, which is an antibiotic. It's also known as albamycin or cat...

Q: Compare methods that biologists use to study cells and point outthe ways in which many of these appr...

A: A cell is the smallest unit of a living thing. An organism is a living creature that is made up of o...

Q: why are hemoglobin proteins made only in red blood cells and insulin proteins only in certain pancre...

A: The fundamental dogma refers to the sequence of events that allow information to be used and transfe...

Q: b. all of their children have porphyria pologi 1 no mol molOu 1 malo with pornhuria

A: Answer - {b} all of their children have porphyria. 

Q: Briefly explain how insulin and glucagon work in concert to regulate blood glucose.

A: The pancreas is a composite gland. A large pancreatic duct runs through the gland, carrying enzymes ...

Q: Traditional gender role socialization encourages ______________________behavior in males. a. instrum...

A: Society expects different attitudes and behaviors from boys and girls. Gender socialization is the t...

Q: Please draw out all possible combinations of gametes resulting from the independent assortment of th...

A: According to Mendel's law of independent assortment, alleles from two (or more) distinct genes are s...

Q: What roles do microtubules play in movement by cilia and flagella?

A: Cilia and Flagella are dynamic cytoplasmic filamentous structures that protrude through the cell wal...

Q: From the table below which shows the metabolic rate for each activity, if a person with height 1.50m...

A: Energy expenditure of human body: It is calculated by the features of body such as its composition a...

Q: Which of these is not a driver of sympatric speciation_ a. Reduction of gene flow in a population b....

A:

Q: Organisms within the same family interbreed in nature. * True False Organisms in the same kingdom ha...

A: A biological species is a group of organisms with the same morphological characteristics that can re...

Q: Using Venn diagram, differentiate Greeks and Muslim science

A: The Greek science didn't related to modern science . Greek science was transmitted to the Islamic sc...

Q: Give the Genetic Proof of the Operon Model ?

A: An operon represents a genetic unit with one or more structural genes and an operator sequence and o...

Q: The wing polymorphic cricket, Grylus beensis, has some individuals who are capable of long Nights (o...

A: The question is related to Hardy Weinberg Equilibrium. p is the dominant allele. q is the recessive ...

Q: immunohistochemistry protocols is appropriate

A: b. Using Rabbit anti-GFAP and Chicken anti-S100beta, followed by anti-rabbit Alexa 488 and anti-chic...

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: What is peritoneum ? Write down its many layers?

A: The serous membrane is a thin membrane that outlines interior body cavities and organs such as the h...

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: DNA polymerases used in PCR

A: The polymerase chain reaction (PCR) is a method for rapidly producing millions of copies of the desi...

Q: Why did DNA, rather than RNA, evolve to be the carrier of genetic information in cells?

A: This is one of the primary dissimilarities between DNA and RNA. DNA (Deoxyribonucleic acid) is the n...

Q: The culture primarily contains nutrients such as sugars and a gel (agar). Why don’t viruses grow in ...

A: Culture media are an integral part of the microbiology lab. There are various kinds of media used in...

Q: Why does a eukaryotic cell need both membranous organelles and fibrous cytoskeletal components? Just...

A: The nucleus of a eukaryotic cell is surrounded by a nuclear membrane, which carries well-defined chr...

Q: Which of the following statements about science and religion is false?

A: Science is the study of things, nature and behaviour in our surrounding by using laws and practical ...

Q: Viruses replicate by entering a cell and using the host cell's enzymes to produce more copies of its...

A: 1- Volume of sphere- 4/3πr3 2- Volume of cylinder= πr2 h Diameter= 2r Here: π=3.14 r=radius of spher...

Q: Why do people differ in the rate and the quality of reaction?

A: Nervous system is a complex system it controls the human on what to do  and what to speak (i.e it co...

Q: .Mechanical isolation

A: Mechanical isolation is a form of reproductive isolation which prevents 2 different species from int...

Q: 1. Which of the following layers protect the mammalian oocyte during ovulation? * a. cortical and hy...

A: Structure of mammalian Oocyte:  mature mammalian Oocytes have many layers before ovulation- Follicle...

Q: Diagram the genotype of a female fly that is recessive for apterus (ap, chromosome 2), heterozygous ...

A: Introduction: Morgan and his group found that when two genes in a dihybrid cross were situated on th...

Q: explain how the symptoms of breast cancer justify investigation through the standard methods? Give a...

A: As we all know, a disease in which abnormal cells divide uncontrollably and destroy body tissue is t...

Q: Difference of contusions from concussions

A: One might assume a concussion is just a more serious contusion. But the reality is that both injurie...

Q: Groodies are useful (but fictional) haploid organisms that are pure genetic tools. A wild-type grood...

A: The groodies that are having a very long tail and also have flagella and are not fat are 44 in numbe...

Q: Compare the body of a flatworm tha a sponge and jellyfish. How are they similar and how are they dif...

A: Sponges They belong to the phylum Porifera. These are multicellular organisms. Their bodies are full...

Q: ach of the following is a critical difference between protostomes and deuterostomes except A. de...

A: Protostomes are a group of animal species that descend from the same progenitors and undergo protost...

Q: Which group of invertebrates is most closely related to vertebrates? A. molluscs B. anneli...

A: Mollusca This is the second largest animal phylum. Are terrestrial and aquatic having an organ syste...

Q: What are the advantages and disadvantages of using the Slide Culture technique?

A: Slide culture technique is mainly utilized for the preparation of fugal colonies. Fungi are consider...

Q: What are the characteristics of the cleavage embryo?

A: Answer : Cleavage is the mitotic division in which the daughter cells are formed from the parent cel...

Q: The ethical concerns about biotechnology shows that A religion and science are not supposed to inter...

A: There are a number of issues that have been raised from modern biotechnologies. These issues are: P...

Q: How did the bacteria maintain its homeostasis when homeostatic disturbance occur.  Explain your answ...

A: The bacteria are classified according to the chemical nature of cell wall into Gram positive and Gra...

Q: Define about DNA Transposons ?

A: DNA is a material found inside cells that transports genetic information and transmits it from gener...

Q: 1. The clade that includes the common ancestor to the Chordata clade and all the Chordata lineages w...

A: Clade is defined as the group of individuals and their single common ancestor. 

Q: . A chicken breeder is working with a population in whichthe mean number of eggs laid per hen in one...

A: Heritability does not reflect the degree to which a trait is genetic; rather, it measures the propor...

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.