13. If the original inoculum contained 7 ml of broth, determine the number of colony forming units in the entire tube of inoculum.

Q: Which are the components that are part of the synthesis of T3 T4?

A: Thyroid hormones are produced by thyroid glands which consists of thyroid follicles serving both as ...

Q: An example of Psychosomatic Disease heart break after the death of a long term partner. loss of a pe...

A:     Psychosomatic disease is caused by mental stress, emotional trauma rather than any physical infe...

Q: Which of the following is a type of genetic change that couldproduce an oncogene?a. Missense mutatio...

A: The oncogene can be defined as any gene that particularly codes for a protein that leads to the tran...

Q: Use the genotype of the two parents in the pedigree to decide if the white lock of hair is dominant ...

A: Traits are of two types autosomal or sex-linked. Autosomal traits are one that occurs due to a mutat...

Q: Functional types of transmembrane proteins?

A: A transmembrane protein is a kind of integral membrane protein which spans whole cell membrane. Most...

Q: How does the conduction of message take place in endocrine system?

A: A collection of glands that functions to secrete chemical messenger/ hormones for regulating various...

Q: An enhancer is a _____________ that ___________ the rate of transcription. a. trans-acting factor, i...

A: Transcription is the first step in central dogma of protein synthesis. It involves formation of sing...

Q: A pharmacist is asked to compound the following for the preparation of 100 capsules: Estriol 200 mg ...

A: The aliquot method is used when the measuring instrument is incapable of measuring a substance with ...

Q: You have isolated a new protein called STICKY. You can predict from comparisons with other known pro...

A: The proteins for isolation must be separated from the cells in which they are located. The cells are...

Q: Give an account of the perching mechanism of a bird?

A: The warm-blooded vertebrates that belong to the class of Aves and have characteristics feathers and ...

Q: For whom would an appreciation of the structural characteristics of the human heart come more easily...

A: Anatomy is the investigation of the structure and connection between body parts. Physiology is the i...

Q: An Hfr strain that is hisE+ and pheA+ was mixed with a strain thatis hisE− and pheA−. The conjugatio...

A: Transfer of genes in prokaryotes occurs through horizontal transfer mechanisms such as transduction,...

Q: Leydig cells ________.a. secrete testosteroneb. activate the sperm flagellumc. support spermatogenes...

A: Leydig cells can also be called as interstitial cells. They are group of polyhedral cells which are ...

Q: The gonads produce what class of hormones?a. amine hormonesb. peptide hormonesc. steroid hormonesd. ...

A: Gonads are the reproductive glands of the animals. Their primary function is to produce gametes duri...

Q: Define glycolysis and explain its input and output, its basic steps, andhow it is linked to the Kreb...

A: Glycolysis, Krebs cycle, and Oxidative phosphorylation are three essential stages of cellular respir...

Q: Plant have ____ while animals lack it. A. starch B. cellulose C. protein D. fat

A: Plants differ from animals in many aspects, for example, plants are autotrophs while animals are het...

Q: What organism causes cholera, and what are the symptoms ofthe disease?

A: Cholera is a disease that caused by a bacterial infection of small intestine. This disease is usuall...

Q: Which muscle produces movement that allows you tocross your legs?a. the gluteus maximusb. the pirifo...

A: Movement is a change in posture or position of any body part of a living organism. It is essential a...

Q: In what process is tumor necrosis factor (TNF) not involved?a. chemotaxis of phagocytesb. fever c. t...

A: Tumor necrosis factor (TNF) is produced by macrophages, lymphocytes, and other immune cells as an in...

Q: As you learned, membranes impermeable to hydrogen ions are required for electron transfer phosphoryl...

A: Mitochondria produce energy by generation of hydrogen ions across a membrane.Mitochondria has two ho...

Q: How would you advise and manage patients to take their medications

A: Medication adherence is a practice of following the medicine routine. It involves taking the correct...

Q: Identify two characteristics that make mitochondria different from other organelles .

A: Cell organelles are structures within a cell that perform specific functions like controlling cell g...

Q: How would the deletion of the following sequences or features most likely affect a eukaryotic pre-mR...

A: Pre-mRNA or precursor mRNA is a type of primary transcript, which becomes the matured messenger RNA ...

Q: What would happen to an ecosystem if (a) all its decomposers and detritus feeders were eliminated, (...

A: A ecosystem is a network of living life forms related to the nonliving segments of their condition, ...

Q: Imagine that you travel around the world and find two populations of  fish that look very similar, b...

A: Phenotypic plasticity can be defined as the changes in the behaviour, morphology and physiology of a...

Q: The concentration of potassium ions inside a nerve cell membrane is higher than the concentration of...

A: Similar to plasma membranes, the membranes of neurons also contain selective permeability. This resu...

Q: Mention the most significant function of the Nephridia.

A: The excretory system consists of organs that are responsible for regulation of chemical composition ...

Q: Draw the structure of gymnosperms?

A: Gymnosperms are naked seeded plants, these have exposed ovules on megasporophylls. These plants do n...

Q: Name the structure that connects the hypothalamus with the pituitary gland.

A: Hypothalamus is a part of the brain located at the base of the brain. Hypothalamus performs many cru...

Q: Explain how antibody diversity is generated in vertebrates.

A: Anatomy and physiology are the branches of biology, anatomy deals with the study of the structure of...

Q: The enzyme tryptophanase splits the amino acid tryptophan into ________ and pyruvic acid (plus ammon...

A: Tryptophan is an amino ACID that can go through deamination and hydrolysis by microscopic organisms ...

Q: What do you mean by glands?

A: The chemical messengers that are produced in the body are called hormones. Hormones act on target ti...

Q: What kind of arthropods are chiggers?

A: Chiggers are tiny mites that usually get their traits confused with the scabies mites. They are also...

Q: The seedless banana, the world’s most popular fruit, islosing the battle against two fungal epidemic...

A: Epidemics are the rapid spread of certain disease at a particular time in a specific area affecting ...

Q: Compare and contrast the roles and activities of the differentTh cells. What cytokines do they produ...

A: CD4+ cells are also known as  T helper cells (Th cells) and it is actively associated with the adapt...

Q: Describe what are missense mutations and its effects on structure and function using haemoglobin as ...

A: A missense mutation may be a mistake within the DNA which ends up within the wrong aminoalkanoic aci...

Q: Increases the number of free hydrogen ions or protons (H+) in the intermembrane space of the mitocho...

A: Mitochondria are the double-membrane bound organelles that are also known as the powerhouse of the c...

Q: 6.) How do the percent of calories from each macronutrient group (protein, fat, and carbohydrate) co...

A: Dietary Reference Intakes (DRIs) are a set of reference values used to plan and assess the nutrient ...

Q: N. gonorrhoeae Become Resistant toPenicillin Through which Mechanisms?

A: Penicillin is the first antibiotic drug used by scientists. It destroys several infections and bacte...

Q: Which Bacteria and Archaea play a major role in acidmine drainage? Why do they carry out the reactio...

A: Acid mine drainages (AMD) structure when sulfide minerals (e.g., pyrite and FeS2) are exposed to oxy...

Q: If you place a sample of your blood (which is primarily red blood cells) in a beaker of distilled wa...

A: Osmosis refers to the movement of solvent molecules from the region of less concentrated solution to...

Q: Fill in the blank:  The largest of the ovarian attachments is called the _______________________ lig...

A: The reproductive system of human is an organ system which is made up of all the anatomical organs in...

Q: Difference between Primary and secondary productivity.

A: Ecosystem is a community or collection of living organisms that live in and interacts with each othe...

Q: Fill in the blank:  When carbonic acid dissociates, _______________________ and hydrogen ions are re...

A: The bicarbonate buffer system can be defined as an acid-base homeostatic mechanism that includes the...

Q: What test can be performed to differentiate between group A and group C streptococci?

A: Bacteria are a group of prokaryotic microscopic single celled organisms. They live in diverse enviro...

Health Epidemiology

Health is an essential factor for all human beings. For all humans, health is a critical factor. An individual's ability to meet life's challenges and retain his or her capacity for optimal functioning is reflected in his or her condition of health. This needs the physical, mental, and biological parts of one's constitution to maintain a degree of functioning that has a favorable influence and support for one another.