Table of contents

1. Introduction to Genetics51m
2. Mendel's Laws of Inheritance3h 37m
3. Extensions to Mendelian Inheritance2h 41m
4. Genetic Mapping and Linkage2h 28m
5. Genetics of Bacteria and Viruses1h 21m
6. Chromosomal Variation1h 48m
7. DNA and Chromosome Structure56m
8. DNA Replication1h 10m
9. Mitosis and Meiosis1h 34m
10. Transcription1h 0m
11. Translation58m
12. Gene Regulation in Prokaryotes1h 19m
13. Gene Regulation in Eukaryotes44m
14. Genetic Control of Development44m
15. Genomes and Genomics1h 50m
16. Transposable Elements47m
17. Mutation, Repair, and Recombination1h 6m
18. Molecular Genetic Tools19m
- Genetic Cloning
  9m
- Methods for Analyzing DNA
  9m
19. Cancer Genetics29m
- Overview of Cancer
  21m
- Cancer Mutations
  7m
20. Quantitative Genetics1h 26m
21. Population Genetics50m
- Hardy Weinberg
  19m
- Allelic Frequency Changes
  31m
22. Evolutionary Genetics29m

1. Introduction to Genetics

Fundamentals of Genetics

Genetics

1. Introduction to Genetics

Fundamentals of Genetics

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Multiple Choice

A polar body is ______ than a primary oocyte.

larger

genetically different

more metabolically active

smaller

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Verified step by step guidance

Understand the biological context: A primary oocyte is a large cell in the ovary that undergoes meiosis to eventually form an ovum (egg). During this process, polar bodies are also produced.

Recall the process of meiosis in oogenesis: The primary oocyte divides asymmetrically to produce one large secondary oocyte and a much smaller polar body.

Consider the size difference: Because the cytoplasm is unevenly divided, the polar body receives very little cytoplasm, making it smaller than the primary oocyte.

Evaluate genetic content: Both the primary oocyte and polar body have the same genetic content initially, but the polar body is not more genetically different; it is essentially a byproduct of meiosis.

Assess metabolic activity: The primary oocyte is metabolically active to support development, whereas the polar body is not more metabolically active.