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

7. DNA and Chromosome Structure

DNA as the Genetic Material

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Multiple Choice

After Mendel's work, biologists determined that a single chromosome carries which of the following?

Proteins that directly determine inheritance

Multiple genes, each responsible for different traits

Only one gene for a single trait

Only non-coding DNA sequences

Verified step by step guidance

Recall Mendel's principle that traits are inherited through discrete units called genes, which are located on chromosomes.

Understand that chromosomes are long DNA molecules that contain many genes, not just one gene or a single type of sequence.

Recognize that each gene on a chromosome can be responsible for a different trait, meaning multiple genes are carried on a single chromosome.

Note that chromosomes also contain non-coding DNA sequences, but these do not directly determine inheritance of traits.

Conclude that a single chromosome carries multiple genes, each responsible for different traits, rather than only one gene or proteins.

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