Name three major types of water pollutants, and provide an example of each. Explain which classes of water pollutants you think are most important in your local area

Q: Domestic cats and dogs and other domesticated animals have they shown any signs of evidence of evolu...

A: Domestication is an evolved trait in which animals are selectively bred and experience significant m...

Q: . The DNA polymerases are positioned over the following DNA segment (which is part of a much larger ...

A: Introduction  DNA replication is very crucial process for the continuation of life as every new daug...

Q: Describe microevolution.

A:

Q: Explain the graph. What are represented by the red and green lines?

A: In the ecosystem different species coexist together. They form food chain and food web. They form a ...

Q: 1. An albino man whose parents are both normal marries a woman ome of whose parents is normal and th...

A: Albinism is a autosomal recessive transmission pattern disease. Suppose the genotype of Albino is aa...

Q: What are helicases and topoisomerases?

A: Enzymes are the proteins present in the cells and have catalytic powers.  

Q: If thymine makes up 15 percent of the bases in a specificDNA molecule, what percentage of the bases ...

A: DNA is a polymer of deoxyribonucleotides that regulate genetic traits.  

Q: PCR can be used______ . a. as a cloning vector b. in DNA profiling c. to modify a human genome

A: DNA is the genetic material present in the cells of living beings.  

Q: Describe some models of speciation and give examples of each.

A: An evolutionary process IN which a new species comes into form is known as speciation. A species is ...

Q: How are grasslands classified?

A: In this question we will discuss about how grasslands are classified.  

Q: Given your knowledge of temperate biomes, why can temperate seasonal forests retain more of their so...

A: Biome refers to the community of flora and fauna with are like characters concerning the environment...

Q: List all the cellular components (organelles and structures) involved in the proteins production. Pr...

A: The study of the formation, functioning, and behavior of cells is known as cell biology. Cells are t...

Q: To understand the genetic basis of locomotion in the diploid nematode Caenorhabditis elegans, recess...

A: Introduction Genetics is a branch of biology that studies genes, genetic diversity, and heredity in ...

Q: ____tends to keep populations of a species similar to one another. a. Genetic drift c. Mutation b. G...

A: Charles Darwin proposed the idea of Natural selection and it is the driving force behind evolution. ...

Q: . The production of pigment in the outer layer of seedsof corn requires each of the three independen...

A: Let Pr be purple, pr be red and acr be yellow. Part A. The phenotype of parent  P1 = AA CC RR prpr ...

Q: Four homozygous recessive mutant lines of Drosophilamelanogaster (labeled 1 through 4) showed abnorm...

A: Introduction Heterozygous means that you have inherited various versions of a gene from each parent....

Q: "Recombinant DNA Technology Began with Two Key Tools". What are these two Tools ?

A: Recombinant DNA technology is the technique of joining together of DNA molecules from two different ...

Q: The process in which environmental pressures result in the differential survival and reproduction of...

A: Introduction  Evolution is the key process that regulates the survivability and continuity of specie...

Q: Which statement(s) describe(s) a microplate reader? A. It is spectrophotometer B. It can read the ab...

A: Introduction :  microplate reader is used to detect biological,  chemical and physical events of sam...

Q: list at least three potential targets for antiviral therapies/drugs. For each one, briefly justify y...

A: Anti Viral Drugs attack one of the various steps of viral entrance or replication or exit. These can...

Q: Which of the following enzymes are NOT used in recombinant DNA technology O A. Eco RI O B. Ligase O ...

A: INTRODUCTION Recombinant DNA (rDNA) is a process of joining DNA molecules from two different sources...

Q: Using appropriate examples, describe some of the ways thatgenetically engineered microorganisms are ...

A: Genetic engineering modifies the genome of organisms.  

Q: the most common method of * indicating pressure in medicine is by the height of a column of mercury ...

A: A manometer is an instrument used to measure and indicate pressure, it is used for measuring the liq...

Q: Indicate the testing procedure for the cortical sensation

A: The purpose of examination of cortical sensation is mainly to see if there is evidence for a lesion ...

Q: Suppose you counted 79 R_ and 33 rr. The total number of individuals you counted, N, is 112. You exp...

A: Answer 

Q: Why uncut and cut PCR at different position in the agarose gel? which one can be decided accuracy th...

A: *Gel electrophoresis a technique to separate DNA fragments based on their size. *DNA samples are loa...

Q: Please help me answer how much volume of cell suspension needed (for 5*10^4 cells) in microliters. P...

A: For some experiments, it is essential to use the specified number of cells of microbes (or otherwise...

Q: The spectrophotometric profile of this RNA extraction can be interpreted as Spectro-DNA2.pdf 212 KB ...

A: This is method use for assessing the RNA concentrations and it's purity. 

Q: How do you know that the events in Figure 8-13 are occurring in the nucleus?

A: Cotranscriptional processing of RNA follows after transcription which produces premature RNA transcr...

Q: Epinephrine stimulates a variety of adrenergic receptors. Which of the following receptors when stim...

A: The adrenergic receptors (α1, α2, β1, β2, β3) are a type of G protein-coupled receptors and many cat...

Q: If we could prevent wastes from flowing from the Chesapeake Bay into the Atlantic Ocean, it would he...

A: Water pollution is the pollution of streams, rivers, lakes, seas, or groundwater by pollutants emitt...

Q: Lactose fermentation can be used to distinguish between which of the following? Bacteria of the ...

A: Fermentation is one of the earliest food processing processes. Lacto-fermentation is a type of ferme...

Q: blap The reason that x-rays show bones so well Ca it absorbs x-ray much better than surrounding soft...

A: Introduction: Bones are constituted of calcium in the form of calcium phosphate and calcium carbonat...

Q: . The genotype r/r ; p/p gives fowl a single comb, R/− ; P/−gives a walnut comb, r/r ; P/− gives a p...

A: Comb in poultry is defined by two genes usually designated as R and P.  When only the dominant allel...

Q: Molds are ubiquitous or widespread due to what visible structure? Explain in minimum of 4-5 sentence...

A: Introduction:- Molds are microscopic creatures that can be found both indoors and out. They are a na...

Q: Starches can be defined as indigestible saccharides

A: Starch is the carbohydrate that is composed of many glucose molecule units that arr joined together ...

Q: No. Country of Origin Societal Contributions Discoveries Penicillin Scientists 1 Alexander Fleming 2...

A: All these 10 discoveries are described as Most Important Discoveries because they contribute a lot t...

Q: What are the conditions for coevolution to occur?

A: Introduction :- The concept of  "coevolution" refers to situations in which two (or more) species ha...

Q: Red-legged frogs (Rana draytonii) breed from around November to late April,while yellow-legged frogs...

A: There are 2 Rana aurora. The first, Rana aurora, or we can say the Northern Red-legged frog, occupie...

Q: Human females have two X chromosomes (XX); males have one X and one Y chromosome (XY). a. With respe...

A: Male has two types of chromosomes are X and Y whereas females have two chromosomes both are X and X....

Q: How did the first fermenting autotrophs appear? What about the first aerobic organisms?

A: Autotrophs, like heterotrophs, respire or ferment and consume the organic molecules they produce; th...

Q: why Humans have respiratory structures from the gut, for fishes, they’re not

A: * most fishes exchange oxygen and carbon dioxide in wate with the help of gills. *Beside the gills t...

Q: What is the correct order of information flow in bacterial and eukaryotic cells? (a) DNA----> mRN...

A: Introduction :- Eukaryotes are organisms with a nucleus and other membrane-bound organelles in their...

Q: 1) In capsule staining, why does the capsules did NOT take in any dye?  2) In endospore staining, w...

A: Stain is a dye used to colour living or dead organelles. Stains are of three types -  Acidic  Basic...

Q: Natural selection makes an adaptive trait more commonin a population. After many generations, will a...

A: Adaptive traits are traits that adapt the condition and changes in physical and behavioral character...

Q: The optimal volume for blood-culture collection on adults is

A: d. dependent upon the patient's body weight

Q: What is RNA interference?

A: Recombinant DNA technology (rDNA technology) is extremely useful for analyzing a species' entire gen...

Q: the living cells of * bone osteoclasts Osteocytes O

A: Bones provide the structure for our bodies. Human skeleton is made up of 206 bones.

Q: 11 The cell membrane is composed of phospholipids. How do the phospholipids arrange themselves withi...

A: Introduction :- The cell membrane is also known as the plasma membrane. It is the membrane that can ...

Q: True False

A: Yes,It is a true statement. Homo naledi fossils were first discovered in Rising Star Cave in South A...

Environmental effects

Environmental effect is the beneficial or adverse impact of human products, services, or activities on the environment. For example, the release of volatile organic compounds negatively affects the environment and causes smog formation. On the other hand, collecting litter and putting it in bins positively affects the environment.