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

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

The image of chromosomes in cotton plants shows an example of what process?

Genetic drift

Polyploidy

Crossing over

Gene silencing

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Verified step by step guidance

Step 1: Understand the key terms given in the options. Genetic drift refers to random changes in allele frequencies in a population, which is a population genetics concept and not directly observable in a chromosome image.

Step 2: Recognize that crossing over is a process during meiosis where homologous chromosomes exchange segments, which can be seen in detailed chromosome pairing but usually not as a whole chromosome number change.

Step 3: Gene silencing involves turning off gene expression and is a molecular process, not something visible in chromosome structure or number.

Step 4: Polyploidy is the condition of having more than two complete sets of chromosomes, which can be directly observed in chromosome images as an increased chromosome number or sets.

Step 5: Conclude that if the chromosome image shows multiple sets of chromosomes beyond the diploid number, it is an example of polyploidy, a common phenomenon in plants like cotton.