true or false: Identical twins are a result of totipotent cells splitting apart after one egg is fertilized by one sperm.

Q: Electrical impulses travelling from a point of origin to adjacent regions of the cortex is referred…

A: A sudden uncontrollable electrical disturbance on the brain is known as seizure. Causes change in…

Q: Q.1. Enumerate the key concepts in the evolution theory of Darwin.

A: The two most important concepts in Darwin's theory of evolution are as follows:

Q: Which of the following helps Human sperm with locomotion? a) Flagellum b) Basal body c) Nucleosome…

A: *Sperm is male reproductive  gamete that produce motile sperm with a tail called as  flagellum…

Q: Ultraviolet light principally causes which of the following dmages to DNA? A methylation of specific…

A: UV light can kill cells by damaging DNA to an irreversible extent. The light initiates reaction…

Q: List the characteristics of fossils.

A: The following are some of the characteristics of fossilised organisms:

Q: After a naive B cell encounters a 1 and binds an antigen with its2 it enguifs and degrades the…

A: Immune cells are of two types: B -cells and T-cells. The B-cells which has never encounter any…

Q: (vi) Taqpep is a protease that controls tabby patterning in multiple cat species. A protease is an…

A: The Taqpep is a transmembrane protein of M1 amino peptidase family.  It is a protease enzyme means…

Q: Can two normal individuals of the same species with sexual reproduction have identical genomes and…

A: Introduction - Sexual reproduction is a type of reproduction that comprises a complicated life cycle…

Q: What are homologous chromosomes? Which are the human cells that do not have homologous chromosomes?

A: Introduction - Chromosomes are thread-like structures that reside within the nucleus of animal and…

Q: Why did scientists select fruit flies for his genetics experiments?

A: Drosophila melanogaster is a small common fly species that belongs to the Drosophilae family. It is…

Q: Explain adaptive radiation. Give examples in support of your answer.

A: Introduction In this question we will explain the adaptive radiation.

Q: Once the RNA primers are replaced the fragments in the lagging strands are sealed by DNA pol I. A…

A: The replication is the process of producing double standard DNA molecule from the parental double…

Q: anaerobic fates of pyruvate (conversion to lactate or ethanol) in terms of ATP production?

A:

Q: a. The scale of a spectrophotometer extends from 1 to 100% T, what are the values of these two…

A: Ans a. Absorbance of these two extremes from percent transmittance ( %T) can be calculated by the…

Q: Q.1. Enumerate the post-transcriptional modifications in a eukaryotir mRNA.

A: Transcription is the process by which DNA is converted into messenger RNA. The following are…

Q: First find and label ATP Synthase on the diagram below. Make boxes and add the labels for ATP, ADP,…

A: Cellular respiration takes place in four steps glycolysis where glucose is converted into pyruvate.…

Q: Which type of molecule binds at the core promoter sites in association with RNA polymerase? A…

A: RNA polymerase can attach to the polymer by only one method. This method involves binding of Basal.…

Q: se trhe imlage to arISwer the Posterior pituitary releases oxytocin Baby suckles Oxytocin stimulates…

A: Homeostasis refers to the process of maintaining internal physiological parameters in a changing…

Q: Explain the principle of 'Using Safer solvent taking suitable example of a conventional reaction and…

A: Safer solvents and auxiliaries. This principle promotes the use of safer solvents and auxiliaries.…

Q: What do you mean by "survival of the fittest"?

A: Natural selection is a process of adaptation by the organism to the changing environment by bringing…

Q: You treat cells with 2,4 dinitrophenol (DNP). This compound creates a temporary channel in the inner…

A: DNP is a compound that is toxic and highly flammable/explosive. It uncouples oxidative…

Q: Q.4. Give a reason for the discontinuous synthesis of DNA on one of the parental strands?

A: Introduction In this question we will write the reason for the discontinues synthesis of DNA on one…

Q: What is Pepsin

A: Digestion of food begins inside the mouth with the help of the enzyme salivary amylase and digestion…

Q: . What is Ringworm? What are the different types of ringworm?

A: Ringworm is A highly contagious fungal infection of the skin or scalp. Ringworm is spread by…

Q: 1. Why do loons have difficulty walking on land? 2. Where do baby loons spend most of their time…

A: Introduction Loons are water birds, range in length from 60 to 90 cm (2 to 3 feet)re members of the…

Q: Is  UVC disinfection of N95 face masks  effective?  Give two (2) important considerations for UVC…

A: Decontaminating mask could be effective against the shortage of masks in pandemic.UVC…

Q: A disomic product of meiosis is obtained. What is itslikely origin? What other genotypes would you…

A: Meiosis is the process by which organisms divide and form different gametes. The formation of…

Q: According to the recent malaria report of the Department of Health, Disease and Prevention Bureau…

A: The malarial parasite passes its life cycle I'm two different host's. The man is the intermediate…

Q: The ancestors of extant tetrapods first evolved the ability to live out of water over 350 million…

A: Tetrapods are vertebrates with four limbs or appendages that resemble legs. These animals are…

Q: A new recessive mutant allele doesn’t show pseudodominance with any of the deletions that span…

A: Pseudodominance is defined as the sudden appearance of the phenotype of a recessive gene in a…

Q: Which of the following receptors is most implicated in the energy crisis following a concussion?…

A: A concussion is a type of brain injury that can occur after a blow to the head. Concussions can…

Q: Enzymes that acetylate the e-amino group of lysine in the histone tails are called and are involved…

A: Histone is made up of majority lysine and arginine (positive amino acids) as a result negative…

Q: DNA ligases will seal all nicks there are in the DNA strands during the replication process and in…

A: DNA nicks introduced during the process of replication, recombination or repair if left unchecked,…

Q: Detoxification of lipid drugs and other harmful compounds in ER is carried out by? a) Cytochrome D…

A: Introduction - Detoxification is the process of removing a drug of dependency from the body without…

Q: Consider the components of fatty-acid degradation and fatty-acid synthesis on the left. The…

A: Fatty acid synthesis It is the formation of fatty acids. The pathway involves acetyl-CoA and NADPH…

Q: The elements that present in Protoplasm

A: A cell's protoplasm, cytoplasm, and nucleus are all examples of protoplasm. The phrase was first…

Q: protein: Sterol transport protein Identification of an orthologue present in humans A description of…

A: * Orthologous genes are originated by descent from single gene of last common ancestor like that the…

Q: 1. What are the characteristic of the mating systems of rheas?

A: DISCLAIMER As per guidelines, you have asked multipart questions, so we will solve the first…

Q: Consider the following image - the dotted lines represent hydrogen bonds between nitrogenous bases:…

A: There are two different type of nucleic acids and these are DNA and RNA. Four different types of…

Q: egmentation O Can be fused into specialized functional regions Is seen in insects, worms, and their…

A: The sequence repetition of similar organs, tissues, cell types on different body segments placed on…

Q: DIRECTIONS: Examine the illustrations of the marine organisms shown below whose fossils make up part…

A: * Darwin said that the Fossils records provide evidence that the living organisms evolved from many…

Q: f you lost your ability to walk, could you access all of your house? What would need to change?…

A: Whenever one loses their ability to walk, they become wheelchair bound. Hence, their house, car…

Q: Stimulation of D1 Medium Spiny Neurons in the Striatum causes of the Globus Pallidus and subsequent…

A: The basal ganglia are involved in action selection. It is a proven fact that a direct pathway leads…

Q: If an experimental design includes systematic variation it means that: O Changes in only one…

A: ANSWER;- Across experiment units, independent variables are changed in such a way that the separate…

Q: 3. Listed within this chart are descriptions of a variety of DNA mutations. Your job is to fill in…

A: *Mutations cause change in  DNA sequence thar are resulted from DNA copying errors during cell…

Q: Spongy bones do not have a haversian system. a) False b) True

A: Introduction - Compact bone is more dense and lighter than spongy (cancellous) bone. Plates…

Q: A Lynx and jaguarundi share a more recent common ancestor than do ocelot and caracal. The speciation…

A: * A cladogram tells and shows the  ancestral relationships among organisms and cladograms were drawn…

Q: How Enteropathogenic E. coli influences carcinogenesis

A:

Q: Darwin based his Theory of Evolution by Natural Selection on series of observations.  Which of the…

A: In today's world when a pandemic spreads those who have strong immunity could survive and could be…

Q: energy flow differently in island pyramids vs landscape pyramids? Is the recycling of matter more…

A: The pyramid of energy depicts the flow of energy from one trophic level to another trophic level. It…

DNA and RNA

Deoxyribonucleic acid (DNA) is usually called the blueprint of life. Deoxyribose is a monosaccharide that has a key function in the synthesis of deoxyribonucleic acid. One less oxygen-containing hydroxyl group occurs in deoxyribose sugar. Nucleic acid, deoxyribonucleic acid, is one of the natural components. Deoxyribonucleic acid is a double-stranded molecule. Watson and Crick postulated the double-stranded model of the helix. A deoxyribonucleic acid is a molecular group that carries and transmits genetic information from parents to offspring. All eukaryotic and prokaryotic cells are involved.

DNA as the Genetic Material

DNA, or deoxyribonucleic acid, is a long polymeric nucleic acid molecule discovered in the late 1930s. It is a polymer; a long chain-like molecule made up of several monomers connected in a sequence. It possesses certain characteristics that qualify it as a genetic component. Certain organisms have different types of nucleic acids as their genetic material - DNA or RNA.

Genetics

The significant branch in science which involves the study of genes, gene variations, and the organism's heredity is known as genetics. It is also used to study the involvement of a gene or set of genes in the health of an individual and how it prevents several diseases in a human being. Thus, genetics also creates an understanding of various medical conditions.      

DNA Replication

The mechanism by which deoxyribonucleic acid (DNA) is capable of producing an exact copy of its own is defined as DNA replication. The DNA molecules utilize a semiconservative method for replication.