61 episodes

A concise review of the Khan Academy MCAT Videos.

Ok this is really random but I just hit a thousand plays or this, so could you hmu with any critique? Email mcatstudyone@gmail.com (takes 20 seconds!)

Created by Hamza Taj

# MCAT Modules - Revie‪w‬ Hamza Taj

• Courses

A concise review of the Khan Academy MCAT Videos.

Ok this is really random but I just hit a thousand plays or this, so could you hmu with any critique? Email mcatstudyone@gmail.com (takes 20 seconds!)

Created by Hamza Taj

8:3. DNA Libraries and Generating cDNA

## 8:3. DNA Libraries and Generating cDNA

Prot —> mRNA —> cDNA —> dsDNA. (Step 2 via reverse transcriptase and step 3 via DNA Polymerase). Now the dsDNA is injected into a virus which infects bacteria to make lots of the DNA.

• 4 min
8:2. Polymerase Chain Reaction

## 8:2. Polymerase Chain Reaction

Denaturation (Heat to high temp), Primer Annealing (Cool slightly), Primer Extension via polymerase (Heat but not as much as step 1).

• 6 min
8:1. Gel Electrophoresis

## 8:1. Gel Electrophoresis

GE find us the length of a DNA Strand (how many base pairs long).

• 6 min
7:5. Applying the HP Equation

## 7:5. Applying the HP Equation

Not really sure why I did a module on this - basically you know they’re homo recessive because they have blue eyes (the recessive trait), and you know to use q BECAUSE we’re dealing with the recessive trait.

• 1 min
7:4. The Hardy-Weinberg Equation

## 7:4. The Hardy-Weinberg Equation

HP Equation gives P(allele frequencies). P^2 is probability of homo dominant, Q^2 is probability of homo recessive, 2pq is probability of heterozygous allele combo. P = frequency of dom allele, Q = frequency of recessive allele.

• 2 min
7:3. Worked Example: Punnett Squares

## 7:3. Worked Example: Punnett Squares

Discusses Dihybrid Crosses and the Law of Independent Assortment.

• 6 min

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7 Ratings

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