AP Biology Period 2 #WongNation

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Mealwormzzz...

May 13, 2018

Devansh Taori (Period the Second) Biology Advanced Placement | Mister Rodney Wong Introduction Ethology is the study of an animal’s response to sensory input. Or, put more simply, the study of animal behavior. Behaviors fall into one of two basic categories: learned and innate. Innate behaviors are instinctual, such as the suckling response of mammals or the begging response of baby birds. These behaviors do not have to be learned, and all animals of that species show the same type of behavior in those circumstances. Learned behaviors are based on experience in each situation. A dog might learn that they receive a reward when they urinate outside, and therefore will continue to do so in hope that the reward continues. They have learned that a given behavior leads to this favorable response. All behaviors are generally considered adaptive, meaning that they give the organism some benefit towards survival and/or reproduction. In this lab we studied orientation behaviors

PhylogenYEE #WongSwagger #JesusSavesAll

May 13, 2018

Devansh Taori (Period 2) Biology AP, Mr. Wong The phylogenetic tree worksheet was extremely insightful. While completing it, I learned many different things about how phylogeny works. I've attached the completed worksheet with my reflection to this blog. As always, thanks to the legendary Mr. Wong for letting us do this assignment. And, thank you to Manas for being a baller.

Bacteria That Glow #GlowNation

March 08, 2018

Devansh Taori (Period Two) Biology Advanced Placement pGLO Laboratory Report Introduction The ultimate objective of this lab was to perform a genetic transformation. It is well established that gene expression is controlled by DNA. Genes are usually expressed through protein synthesis, a process where mRNA reads a sequence of DNA (transcription), processes it (usually only in eukaryotic cells), and proceeds to be transformed into a polypeptide when tRNA matches its anticodon with the codons on the mRNA (translation). Thus, if DNA can be altered in some way, then the gene expression can be altered as well. In this particular lab, we wanted to see if we could inject a sequence of DNA that codes for Green Fluorescent Protein into E. Coli bacteria. Since the specific pGLO plasmid codes for resistance to ampicillin, while the green fluorescent protein is only expressed in the presence of the sugar arabinose (a molecule which prompts transcription of the gene), the presence of the plas

Hardy-Weinberg Going Hard

March 05, 2018

Devansh Taori (per. 2) Biology AP Introduction Evolution occurs in populations of organisms and involves variation in the population, heredity, and differential survival. One way to study evolution is to study how the frequency of alleles in a population changes from generation to generation. Important questions surrounding the topic of evolution involve what the inheritance patterns of alleles, not just from two parental organisms, but also in a population are. Exploration of how allele frequencies change in populations can help us with predicting what will happen to a population in the future. Mathematical models and computer simulations are tools used to explore the complexity of biological systems that might otherwise be difficult or impossible to study. Several models can be applied to questions about evolution. In this experiment, we built a spreadsheet that models a hypothetical gene pool changes from one generation to the next. The model exolores parameters that affe

Corn Genetics #Genetricks #WongSwag

January 15, 2018

Devansh Taori Biology AP Period 2 Mr. Wong Conclusion In this experiment, we analyzed two types of crosses within corn plants – monohybrid and dihybrid crosses. In monohybrid crosses, the parent plants differ with respect to only one trait. However, for dihybrid crosses, the parent plants differ with respect to two traits. In the monohybrid cross, the probable parent genotypes for color were Pp and for texture were Ss. According to probability theory, the expected % of dominant to recessive traits was 75% to 25%. We indeed did find this when looking at our results – 173 were purple (dominant), and the other 64 were yellow (recessive) – that's 73% to 27%. 184 were smooth (dominant), and the other 53 were shrunken (recessive) – that's 78% to 22%. Thus, looking at results, it's clear to see that in the monohybrid cross, the offspring displayed their traits in accordance with standard Punnett Square probability theory. In the dihybrid cross, however, the optima

Investigation 7: Mitosis Lab #Money #LilWayne #WongIsALegend

December 11, 2017

Devansh Taori Biology AP, Per. 2 Mr. Rodney Wong Introduction One of the major keys to life is replicating and passing on genetic material to the next generation. In eukaryotes, the process is extremely complex and involves three phases: interphase, mitosis, and cytokinesis. Interphase has the first growth stage (G1), synthesis (S, where the chromosomes are replicated), followed by the second growth stage (G2). In mitosis, the duplicated chromosomes separate into two nuclei. Finally, in cytokinesis, the cytoplasm divides and two daughter cells are formed. Cell division involves many different proteins – in particular, CDKs (cyclin-dependent kinases). These CDKs turn off and on various processes in cell division, thus facilitating the overall cycle. The way CDKs do this is by partnering with proteins called cyclins (how aptly named!). One such complex is mitosis-promoting factor, and it contains cyclin A or B and cyclin-dependent kinase. CDK is activated when it is

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