Mcat biology exam - Study guides, Class notes & Summaries

Central Dogma - ANSWER - DNA → RNA → Protein Purines - which bases? - how many rings? - ANSWER - Pyrimidines - which bases? - how many rings? - ANSWER - Remember: "Pyrimidine" has a "y" in it; so does "cytosine" and "thymine."

MCAT Biology Study Exam Questions Correctly Answered. Cell Theory - CORRECT ANSWER Four Tenets: 1. All living things are composed of cells 2. The cell is the basic functional unit of life 3. Cells arise only from preexisting cells 4. Cells carry genetic information in the form of DNA Eukaryotic Cells - CORRECT ANSWER Contain a true nucleus enclosed in a membrane. Prokaryotic Cells - CORRECT ANSWER Do not contain a nucleus. Organelles - CORRECT ANSWER Suspended in semifluid cytoso...

MCAT Biology Exam Questions With Verified And Updated Solutions. Cell Theory - answerFour Tenets: 1. All living things are composed of cells 2. The cell is the basic functional unit of life 3. Cells arise only from preexisting cells 4. Cells carry genetic information in the form of DNA Eukaryotic Cells - answerContain a true nucleus enclosed in a membrane. Prokaryotic Cells - answerDo not contain a nucleus. Organelles - answerSuspended in semifluid cytosol. In eukaryotic cells they are ...

MCAT BIOLOGY EXAM -609 QUESTIONS AND ANSWERS 2024

Central Dogma DNA → RNA → Protein Purines - which bases? - how many rings? Brainpower Read More 0:14 / 0:15 Pyrimidines - which bases? - how many rings? Remember: "Pyrimidine" has a "y" in it; so does "cytosine" and "thymine." Phosphodiester Bond Joins one nucleotide to the next; between the 3rd C of one ribose and the 5th C of the other to create the sugar-phosphate backbone Directionality of DNA (convention) 5' → 3' (but strands are ant...

MCAT Biology Exam Latest Updated 2024 With Complete Solutions Natural selection (types) Different types of selection lead to changes in phenotype: 1) Stabilizing selection 2) Directional selection 3) Disruptive selection 4) Adaptive selection Stabilizing selection Keeps the phenotypes in a narrow range, excluding extremes. Directional selection Moves the average phenotype toward one extreme. Disruptive selection Moves toward two different phenotypes at the extremes and can lead to sp...

MCAT Psychology & Sociology, MCAT Biochemistry & MCAT Biology Exam Latest Updated 2024 With Complete Solutions Long-Term Potentiation (LTP) A persistent increase in synaptic strength following high-frequency stimulation of a chemical synapse. Retrieval Information stored in long-term memory can return to working memory through this process. Semantic Networks Organize information in networks of meaningfully related memories. Spreading Activation One item triggers an activation of related ...

MCAT Biology Exam Questions & Answers 2023 Update

Central Dogma - Answer-DNA → RNA → Protein Purines - which bases? - how many rings? - Answer- Pyrimidines - which bases? - how many rings? - Answer-Remember: "Pyrimidine" has a "y" in it; so does "cytosine" and "thymine." Phosphodiester Bond - Answer-Joins one nucleotide to the next; between the 3rd C of one ribose and the 5th C of the other to create the sugar-phosphate backbone Directionality of DNA (convention) - Answer-5' → 3' (but strands are antiparallel, s...

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