Abacteria isolated from Yellowstone National Park is found to use the chemical methane as a food source. Which term best describes the energy source for this organism? OChemotroph OPhototroph OHeterotroph OAutotroph

Q: Examine the following karyotypes and answer the questions about each karyotype in the table below.…

A: Chromosomal abnormalities can occur due to non-disjunction  i.e. a pair of chromosomes fails to…

Q: Which of the following classifications represents the ecological level with the greatest diversity?…

A: The population, community, ecosystem, and biosphere are all levels of organisation in ecology. All…

Q: Which of the following lipids is NOT found in biological membranes? O triacylglycerols O glycolipids…

A: Lipid of biological membrane :-

Q: The principle of Acquired Characteristics states that O species change because there is variation…

A: The characteristics in an organism is controlled by its genetic element that is the DNA. That DNA…

Q: Q.3. Explain the terms: 1. Race 2. Breed 3. Cultivars 4. Variety

A: Animal husbandry is the department of science that deals with the exercise of breeding, farming, and…

Q: What is a recombinant DNA vaccine? List two such vaccines. State their advantages.

A: Plasmids, which are small circular pieces of DNA, are used in the production of recombinant DNA…

Q: Question 31 Lipids, aside from their structural and energy storage functions, are also able to…

A: Lipids are composed of hydrocarbons and for this reason they are hydrophobic in nature. Different…

Q: .Define autosome, hemizygous, homozygous, and heterozygous?

A: Genes  Genes are basic unit of heredity. They are present on the DNA.

Q: Select the one best answer to the following statements. 1. Nontherapeutic research a. will always…

A: Answer  1st answer is (e)   b and d only

Q: Using Figure 17-37, calculate what percentage of conceptions are triploid. The same figure shows XO…

A: Introduction A zygote is a fertilised egg cell produced by the union of a female gamete (egg, or…

Q: Why is colour blindness more prominent in males than females?

A: Introduction In this question we will discuss why colour blindness is more prominent in males than…

Q: .What is the bottleneck effect?

A: Introduction In this question we will discuss about the

Q: Sometimes, the young ones born have an extremely different set of eyes or limbs. Give a relevant…

A: Introduction We will answer the question in below step

Q: What are the primary and the secondary constrictions o a chromosome? What is the other name given to…

A: * primary constrictions is the centromere of chromosome and the chromatids of a chromosome attached…

Q: 1. Carcinoembryonic antigen (CEA) is a protein biomarker related to colon cancer. Its concentration…

A: CEA is a type of tumor marker. Tumor markers are substances made by cancer cells or by normal cells…

Q: What are the habitat corridors in the Philippines?

A: The main function of the corridors is to connect biodiversity areas through a patchwork of…

Q: humectants as food additives.

A: Food additives Food additives are substances that when added to food increase their flavours, taste,…

Q: A particular specie of animal has a carrying capacity of K and a growth rate of r. From an initial…

A: Population refers to the number of individuals in a particular area.  When the resources are…

Q: Which co-receptor molecules are common to both TC and TH cells and their respective antigen…

A: The CD2-LFA-3 and LFA-1-ICAM pathways relevance to T-cell recognition

Q: Which of the following is not part of the green revolution? -Irrigation -Mechanization -GMO's…

A: Green Revolution (a term utilized for rapid expansions in wheat and rice yields in emerging nations…

Q: Five sweetener samples (labelled A to E) were tested by 97 individuals for the intensity of their…

A: A identify as Glucose.  B identify as Sucrose. C identify as Aspartame. D identify as Lactose. E…

Q: Syneresis is a process by which there is the loss of water trapped within the gel matrix through the…

A: The given statement above is true

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

A: The post transcriptional modifications :- 1 . Splicing : Here the introns are removed from the mRNA…

Q: 1. A sample DNA was analyzed. 42% of the nucleotides contained Adenine. Calculate the % of…

A: DNA or deoxyribonucleic acid is the molecule present in almost all the living things that code for…

Q: Which of the following statements describes one reason that plant oils are generally healthier for…

A: Fats and oils are generally lipids. It composed of glycerol and fatty acids. Fats of animal origin…

Q: A lichen is a two-member symbiotic community consisting of a fungus, which provides structure and…

A: The microorganisms offer the host animal food, and the host gives the microorganism either some of…

Q: Describe the steps of transcription in bacteria

A: Introduction - In the nucleus, transcription occurs. To make an RNA (mRNA) molecule, it uses DNA as…

Q: Two eukaryotic genes (A and B) are involved in two different metabolic pathways, and each has a…

A: Transcription elements are proteins that modify the transcription of genes, ie. Their copying into…

Q: Which of the following human cells produce insulin?

A: Insulin is a hormone which controls the blood sugar level in human beings. If insulin is not…

Q: Q.15. State the principle of vaccination. How can vaccines be used to prevent microbial infections?…

A: Introduction In this question we have to state the principle of vaccination.

Q: GROUP 6 Write an essay on the role of magnesium in tolerance of plant species to water and heat…

A: Magnesium is the central core of the chlorophyll molecule in plant tissue. Thus, if Mg is deficient,…

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: Need help on questions 3 and 4, please. Drop-down answer choices are images. Canine Scott Syndrome…

A: 3. TMEM16F splice site mutation segregated with the CSS trait and TMEM16F protein was undetectable…

Q: Natural selection favored dark-colored fur in the rock pocket mouse.  The selective force on the…

A: Natural selection  It is a natural biological process where organisms adapt and change there…

Q: Q.2. Describe the individuals with the following chromosomal abnormalities: 1. Trisomy at chromosome…

A: 1) Trisomy - Trisomy results in Down's syndrome, which is an autosomal-linked genetic disorder that…

Q: How do you think the evolution of mammals (including the emergence of humans) might have been…

A: Mammals evolved from members of the reptile order Therapsida during the Triassic Period…

Q: vectors. Examine Figure 2 below. Provide three (3) qualitative descriptions of the P. falciparum…

A: Plasmodium falciparum is the causal agent of malaria in humans. It is transmitted to humans by the…

Q: semen creates a________ environment for sperm to safely travel through both the male and female…

A: The humans are sexually reproducing organisms in which male and female gametes fused to form a…

Q: Why are older expectant mothers routinely given amniocentesis or CVS?

A: Prenatal diagnostic procedures such as chorionic villus sampling (CVS) and amniocentesis are used to…

Q: How is asexual cellular reproduction different in animals versus plants?

A: Asexual reproduction is a mode of reproduction that occurs without the fusion of gametes and doesn’t…

Q: Which of the following statements is TRUE regarding the ABO blood system? O People who have the B…

A: Plasma membrane of RBCs contain various antigens and based on the presence or absence of various…

Q: Erythroblastosis fetalis is a hemolytic disease experienced by the second born caused by the…

A: Erythroblastosis foetalis is a haemolytic disease of the foetus which is caused by the transmission…

Q: 4. Which one of the following is NOT a nonessential amino acid? A. Alanine B. Cysteine C. Proline D.…

A: 4 Question) Which of the following is not a non essential aminoacid? Answer ) D.  Methionine is a…

Q: What are the species of aerobic bacteria which can be found in chronic wound?

A: Introduction A wound is an injury that occurs quickly and involves lacerated or punctured skin (open…

Q: Q.4. Explain why excessive dosage and abusive usage of drugs such as amphetamines, LSD and…

A: Effects of drugs on human :- Seizures, stroke, mental confusion and brain damage. Lung disease.…

Q: TRUE or FALSE: Type 2 diabetes is a ketosis-resistant, adult-onset diabetes that always require…

A: Intensive insulin therapy is a type of diabetes treatment that aims to keep your blood sugar levels…

Q: How do systematists apply the principle of parsimony?

A: Biological systematics is the research of the past and current diversity of living forms, as well as…

Q: A mutation produces a new beneficial dominant allele.  Which of the following statements is false…

A: Mutation   Any changes in the DNA from its originality is known as mutation.

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: 1_Vancomycin inhibits cell wall synthesis by: a.Binding irreversibly to transpeptidase and inhibit…

A: Vancomycin inhibits cell wall synthesis in gram-positive bacteria by binding firmly to the…

Substance Abuse

Substance abuse refers to the use of illegal drugs in excessive quantities, as well as the misuse of legal substances such as prescription or over-the-counter pharmaceuticals or alcohol for purposes other than those intended. Drug addiction, also known as substance use disorder, is a disease that affects the brain and behavior of a person. It leads to a failure to control the use of any drug or prescription, legal or illegal.