Table of contents

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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

3. Extensions to Mendelian Inheritance

Overview of interacting Genes

Genetics

3. Extensions to Mendelian Inheritance

Overview of interacting Genes

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Multiple Choice

If complementary DNA strands were arranged in a parallel manner (rather than antiparallel), what would you expect to observe?

The DNA double helix would become more stable due to enhanced base pairing.

The genetic code would be read in the same direction on both strands.

DNA replication would proceed normally without any changes.

Hydrogen bonding between bases would be disrupted, preventing stable double helix formation.

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Verified step by step guidance

Recall the normal structure of DNA, where two complementary strands run in opposite directions (antiparallel), one strand from 5' to 3' and the other from 3' to 5'.

Understand that base pairing (A-T and G-C) depends on the antiparallel orientation to allow proper hydrogen bonding between complementary bases.

Consider what happens if the strands are arranged parallel (both running 5' to 3' or both 3' to 5'): the alignment of bases would be altered, disrupting the hydrogen bonding pattern.

Recognize that without proper hydrogen bonding, the double helix cannot form a stable structure, leading to instability or failure to form the typical DNA double helix.

Conclude that the genetic code reading and replication processes rely on the stable double helix structure, so parallel strands would prevent normal DNA function.