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

7. DNA and Chromosome Structure

DNA as the Genetic Material

Genetics

7. DNA and Chromosome Structure

DNA as the Genetic Material

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Multiple Choice

Which of the following best explains how DNA can be used to help solve a crime?

By using DNA to predict the exact time a crime occurred

By comparing DNA samples from a crime scene to those of suspects to identify a match

By determining the age of a suspect based on their DNA sequence

By analyzing DNA to reconstruct the physical appearance of the victim

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Verified step by step guidance

Understand that DNA contains unique genetic information for each individual (except identical twins), which can be used as a biological fingerprint.

Recognize that DNA samples collected from a crime scene can be compared to DNA samples from suspects to check for matches.

Learn that matching DNA profiles between a crime scene sample and a suspect's sample can help identify or exclude individuals involved in the crime.

Note that DNA cannot be used to predict the exact time a crime occurred or determine the age of a suspect directly from the sequence.

Understand that while DNA can sometimes provide clues about physical traits, reconstructing a victim's appearance solely from DNA is not currently precise enough for forensic identification.