Rowena was tasked to measure the actual magnification of her specimen mounted on a  slide without drawing or taking a photomicrograph. Which type of microscope should she use?

Q: Which of the following explains why prokaryotes have a bigger gene-to-genome size ratio compared to…

A: *prokaryotic genome is composed of  single or double stranded DNA molecule form of circle. The…

Q: Which of the following functions is NOT or cannot be performed by lipids? They can bind to DNA…

A: Answer- They can bind to DNA response elements to control gene expression.

Q: Q.2. Comment on the statement, "Migration may increase or decrease the effects of selection".

A: Introduction We will comment on the statement given in the question.

Q: In the diagram below, which of the following labels (in red) would represent single- stranded…

A: During DNA replication, the single-stranded DNA binding protein (SSB) wraps the single-binded DNA…

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: 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 is a common cause for the production of oncogenes?   a. defective ion channel proteins…

A: Cancer  The continuous uncontrollable division of defective cell can leads to the cancer.

Q: Question 12 Five sweetener samples (labelled A to E) were tested by 97 individuals for the intensity…

A: Carbohydrates They are macromolecules and are one of the three main ways by which our body obtains…

Q: Which one of the following is not associated with too much protein? A. reduction of lean body mass…

A: Proteins are biomolecules that are composed of a long chain of amino acids. They are important for…

Q: Why is Raphanobrassica fertile, whereas its progenitorwasn’t?

A: Raphanobrassica. Any intergeneric hybrid between Brassica (cabbages, etc.) and Raphanus is known as…

Q: Which of the following DOES NOT define a gel? O a.it is in a semi-solid state O bit is connected at…

A: Option C)

Q: SPO11 re

A:

Q: Give and explain at least (5) five simple habits you can adopt that may reduce the risk of problems…

A: 1. Stay hydrated- Drink as much water as you can. Drinking proper amount of water keeps urinary…

Q: rue/False) Scientists have now been able to use the hether a particular DNA segement can be used to…

A: SNP or single nucleotide polymorphism that is change in the single nucleotide may cause change in…

Q: Methane (biomass) O is commonly used as a fuel source at landfills O is produced by yeast cells O is…

A: Biomass is the mass present in living material.

Q: Gasping for Oxygen Explain how each of the following contribute to dissolved oxygen decline in…

A: Various factors are responsible for dissolved oxygen decline in aquatic ecosystems :-

Q: 1 what is the Kel4tionshi gallstahes ahd Pheumohia?

A: Gallstones are classified as very tiny, hard crystalline masses that are generated improperly in the…

Q: Question 32 Besides just using antibiotics, describe 2 specific actions we as humans are doing that…

A: A drug is a chemical that, when it interacts with the body, has a physiological impact on it. They…

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

A: Lipid of biological membrane :-

Q: 4. In cellular respiration we have learned 3 different instances when the ATP cycle (ATP/ADP + Pi)…

A: a*phosphorylation (ATP hydrolysis) When ATP is hydrolyzed, its gamma phosphate transferred to the…

Q: Match each indicator species with the appropriate region: Western Great Lakes - St. 1. White-tailed…

A: * western great lakes St.Lawrence forest region consists of peninsula of southern Ontario by the…

Q: Starting with acetyl-S-enzyme-1 and malonyl-CoA, how many molecules of acetyl-CoA synthesize an…

A: * Acetyl CoA is a molecule that involves in many biochemical reactions like  protein and…

Q: What is the difference between the concepts of karyotype and genome?

A: Karyotype refers to an individual's shape, size, banding patterns, and number of chromosomes. The…

Q: A strand of DNA contains the base pair 5’-T-C-A-G-C-A-T-3’. Give the base sequence on the…

A: Answer

Q: .What is the bottleneck effect?

A: Introduction In this question we will discuss about the

Q: In the fatty acid degradation of the following molecule: How many Acetyl CoA, NADH, and FADH2 will…

A: The fatty acids are degraded by beta-oxidation that occurs within the mitochondrial matrix and…

Q: A child could have the same blood type as one of his/her parents but it doesn't always happen that…

A: Blood types are the result of the presence or absence of antigens on the surface of the individuals…

Q: 13) Draw a graph representing the changes in membrane potential across the axonal membrane before,…

A: The electric signals that flow down the dendrites to form a nerve impulse or an action potential are…

Q: uestion 3 Nhat features do AB+ individuals share? O contains N-acetylglucosamine and galactose on…

A: Blood group are named according to the type of antigen they are present with. Persons may thus have…

Q: An advantage of gas exchange in water, compared with gas exchange in air is that water usually…

A: Gas change is the process by means of which oxygen and carbon dioxide flow among the bloodstream and…

Q: 1. The enzyme that fills the gaps between the Okazaki fragments is ________. a.DNA polymerase…

A: Introduction DNA, or deoxyribonucleic acid, is the carrier of genetic information from generation to…

Q: What information can be inferred from this graph? 250 200 Diabetic subject 150 100 Normal subject 50…

A: The screening and diagnostic test for type 2 diabetes mellitus is Oral glucose tolerance test (…

Q: Nitric oxide produced by the endothelial layer of blood vessels stimulates the smooth muscle layer…

A: The ability of internal communication was established from protista group. In course of evolution,…

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: Questions:- Which of the following statements is incorrect about celiac disease? Group of answer…

A: ANSWER;- B.Celiac disease is entirely driven by gluten exposure, but it presents with the…

Q: Match the description on the left side to the correct term from the choices on the right side.…

A: The living world comprises of the plants, the animals and the microorganisms which we cannot see…

Q: Explain why chytrids are considered an ancient fungal group.

A: Microscopic organisms are referred to as microorganisms. Bacteria, archaea, protozoa, algae, fungi,…

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: What are the types of evolution

A: The various types of evolution are as follows:

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…

Q: 7. In the PCR technique, each round of amplification by the Taq DNA Polymerase enzyme produces 2 new…

A: Introduction PCR is a technique that helps to amplify specific DNA sequences. The strands of DNA…

Q: 3. Describe the allosteric regulation of allosteric activation of the a-ketoglutarate dehydrogenase…

A: *Allosteric regulation is the regulation of an enzyme by binding effector molecule other than the…

Q: Provide the mechanism of Merrifield Resin synthesis taking any tripeptide. Explain one method of…

A: One peptide folded in a certain way, or numerous peptides folded together, makes up a protein. Such…

Q: Question 17 What is the process in which antibodies attach to antigens, causing the formation of…

A: The interaction between antigen and antibody is called antigen antibody reaction, which is…

Q: 1. Infections caused may fall into one of four categories which vary depending on the site affected…

A: Infections It is defined as the invasion of organism's body cells by disease causing pathogens.…

Q: Question 6 Which of the following WILL INCREASE gelling if addition of Ca2* ions was added? a.…

A: INTRODUCTION Answer of question number 6 is given below.

Q: Which growth condition shown above has the largest doubling time? How would you explain the…

A: * Anaerobic condition can be seen when the uptake or lack of oxygen is greater than its production…

Q: Polyunsaturated lipids are liquid at room temperature because they have ______ in their fatty acid…

A: Lipids are the fats and are basically biological macromolecule that play very important role in…

Q: List the characteristics of fossils.

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

Q: Diets aimed at reducing coronary heart disease should be: O low in trans-fatty acids and low in…

A: Coronary heart disease refers to the disease involving the coronary arteries ( arteries which supply…

Microbial Isolation

Isolation of the microorganisms in microbiology is the process of developing a pure culture by separating one species of microbe from a mixture of many other species. A pure culture is a culture that contains only one species of microbe.