Compare the historical technique of VNTR analysis to that of STR analysis in relation to discriminatory ability and data quality. write approx 700 words

1)Discuss why PCR amplification and size separation using capillary electrophoresis is used in the generation of an STR Profile. write approx 700 words

Anthropologists believe that, several million years ago, our ancestors colonized an ecological niche different from the one occupied by the other African apes. Label the lettered parts of your answer. A. What is the unique hominin niche? B. What aspects of the hominin niche have fostered large brains? C. What is altriciality and what might have favored it in the human lineage?

Several ideas might explain the persistence of alleles that lower individual fitness. Label the lettered parts of your answer. A. What is a kin-selected gene? B. What is a sexually antagonistic gene? C. Which of these two best explains the persistence of alleles associated with male homosexuality in human populations? Explain your thinking.

1- What are the concentration gradients for Na+ and K+?
2- Explain why a positive Veq for a cation means an inward driving force and a negative value means an outward driving force?

7. Describe the structure of the B-cell receptor (BCR). How is the BCR able to trigger a signal transduction pathway when its cytoplasmic tail is only 3 amino acids in length? Outline BCR signal transduction from the point of antigen binding through the NF-κB pathway. What is the result of signal transduction events from the BCR?

Discuss one important application in the field of biotechnology that has made headlines in the past year or two

1)Discuss how single nucleotide polymorphisms/mutations can be analysed and utilised in forensic science. please write approx 700 words

Visit or call a store with a plant nursery (Walmart, Home Depot, etc.) and describe the planting of spinach to an associate or customer as if you were really having this issue. Ask them what they recommend you should do. Do not mention the scientific method or even imply any of these steps while discussing your 'problem.' Listen closely to see if the associate/customer's recommendations align with what is expected for the scientific method.

Explain using examples, ‘how’ and ‘why’ you would collect Sensitivity and Specificity data when performing a Validation Study on a new DNA STR Profiling Kit.

Describe the molecular mechanism by which high energy charge in the cell inhibits the activity of the pyruvate dehydrogenase (PDH) complex. Explain why metabolic regulation of PDH makes sense with regard to controlling metabolic flux through the citrate cycle.

1. When designing an experiment to test your hypothesis, you need at least two different conditions. In the “experimental” condition one or more of the variables are altered to test the hypothesis. The other condition is called the “control” condition. In your own words, what is the purpose of the control condition during the experiment. (3 points)

2. Ionic and covalent bonds between atoms are necessary to build molecules and elements. What is a key difference between ionic bonds and covalent bonds? Hint: The biggest difference has to do with electrons (3 points)

1. How does distance of a prey item affect the net energy gain of the predator?

2. How does prey size affect the optimal distance at which to pursue prey?

3. How does abundance of prey affect the optimal distance?

4. What is the relationship between net energy gain and distance to the prey item for small prey?

Part A - Overview of Macromolecule Classes

Organic compounds are large polymers containing carbon. All cellular and tissue-based structures of the human body can be linked to at least one of these groups.
Sort the descriptions into the bins of macromolecule classes.

Monosaccharide is
the monomerConcentrated energy
made up of hydrocarbon
chains or ringsNot soluble in waterStructural and biological
catalyst macromolecules of
amino acids with various functionsATP is a modified versionMake up the majority of
cell membrane structureHas several different
levels of foldingGenetic information comprising
a sugar-phosphate backbone and
complementary base pairingCommonly used source of
energy with the ratio
1 carbon-2 hydrogen-1 oxygen

Carbohydrates   Lipids  Proteins   Nucleic acids

Part D - Lipid Overview
Like carbohydrates, all lipids contain carbon, hydrogen, and oxygen atoms, but in lipids, carbon and hydrogen atoms far outnumber oxygen atoms. The most abundant lipids in the body are triglycerides, phospholipids, and steroids.
Drag and drop each item to all bins that apply.

Charged "head" region with an uncharged "tail" regionFats that contain phosphate groupsBilayer forms selectively permeable cell membraneThree fatty acids attached to one glycerol moleculeAt least one fatty acid chain, typically saturated with hydrogensFats that are the basis for some hormonesMost physiologically important example is cholesterol

Triglycerides  Phospholipids  Steroids

Part F - Nucleic Acid Overview
Nucleic acids carry genetic information, which provides the basic blueprint of life. These are some of the largest macromolecules in the body, and they are composed of nucleotides.
Drag and drop each term to the appropriate statement. Not all terms will be used.
View Available Hint(s)

DNA
Instructions to make protein
Ribose
Cytosine
Deoxyribose
RNA
Thymine
Uracil
1. Guanine always pairs with ___
2. Besides replicating before cell division, the other fundamental role of DNA is ___
3. In DNA, adenine pairs with ___ but in RNA, adenine pairs with ___
4. ATP is a modified nucleotide used for cellular energy that contains the sugar___
5. The sugar in DNA is ___ while the sugar in RNA is ___