In this video, we work examples of exponential growth and decay regarding colonies of bacteria and radioactive decay. We will find the "k" value, and solve for it using logarithms. These exponential word problems are very similar to...

In this video, we do an example of radioactive decay. How do you solve for k? This video shows how to use logarithms (and natural logarithms) to solve for the k or t value. From there, you can use your function to solve word problems.

An introduction to the topic on functions in C. In this video, we explore functions that don't have any input parameters or return values.

Although early scientists knew heredity came from within organisms, they couldn't initially identify the genetic material until pivotal experiments like those of Griffith and later Hershey and Chase. In 1952, Hershey and Chase used...

Blood grouping is based on the presence of A and B antigens on red blood cells and their corresponding antibodies in the serum. Blood type A has A antigen and anti-B antibodies; type B has B antigen and anti-A; type AB has both antigens...

DNA repair mechanisms like base excision repair (BER) and nucleotide excision repair (NER) fix damage by removing and replacing affected regions. BER removes a single damaged base using glycosylases (e.g., to fix deaminated cytosine),...

The cell cycle is a highly regulated process of eukaryotic cell division involving interphase (G1, S, G2 phases) for growth and DNA replication, followed by mitosis for chromosome segregation and cell division. Progression through the...

XLD agar (Xylose Lysine Deoxycholate agar) is a selective and differential medium used primarily for isolating and differentiating Salmonella and Shigella species. It differentiates organisms based on xylose fermentation, lysine...

In this video, you will learn to make cladograms from the given data. Also, CSIR UGC NET problem is discussed to clear the concept. A cladogram is a diagram used to represent a hypothetical relationship between groups of animals, called...

This video explains how the technique of flow cytometry is used to detect for the presence of apoptotic cells in a given cell population. The technique used is Annexin V-Propidium iodide staining. Annexin V is a calcium-dependent...

The Major Histocompatibility Complex (MHC) is a tightly linked gene cluster encoding cell surface molecules essential for antigen presentation and tissue graft rejection, known as histocompatibility antigens. In humans (HLA complex on...

Practice life sciences questions using real examples from 2012.

Humans inherit two alleles for each gene, and their interaction determines how traits are expressed—homozygous if both alleles are the same, and heterozygous if they differ. In complete dominance, one allele masks the other; in...

A dihybrid cross is a breeding experiment between P generation (parental generation) organisms that differ in two traits. The individuals in this type of cross are homozygous for a specific trait. Traits are characteristics that are...

The 1943 Luria–Delbrück experiment, known as the "Fluctuation Test," demonstrated that mutations in bacteria occur randomly rather than as a directed response to environmental stress, such as viral infection. By showing wide variation in...

Rap song all about the upper-case letter

Rap song all about the simple tense

We've learned the simpler future and imperfect tenses for regular first and second conjugation verbs. But there are irregular verbs that will also need to use these tenses, and some of them are very common, such as the verb sum, so we...

In this series we are going to learn all about crime scene investigation. But we must first understand precisely what crimes are. What does it mean to say that someone has committed a crime? What are the types of crime that can be...

We've already learned about the present tense in Latin, so now let's take a look at the simple future tense, for first and second conjugation verbs. This will use a specific infix, and help us say things like "I will", or "I shall"....

Dr. McWheelie helps Santa load gifts into his sleigh, but the little loader breaks down. Join Dr. McWheelie to repair cars and celebrate Christmas with your favorite car cartoons!

The car doctor is giving her friend a remote control car for his birthday as a gift.

Explore the impact of Poetic Pilgrimage, a duo challenging stereotypes and uniting the worlds of hip hop and Islam through their powerful spoken word.

Density in poetry refers to how much meaning is conveyed in a small amount of space. Gwendolyn Brooks’ We Real Cool and Muhammad Ali’s Me, We demonstrate how few words can carry deep significance, capturing entire stories, emotions, and...