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

Sex Chromosome

Genetics

3. Extensions to Mendelian Inheritance

Sex Chromosome

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Multiple Choice

In humans, which region on the Y chromosome determines maleness?

Sperm producing factor (SPF)

Testis determining region (TDR)

Sex Determining Region (SRY)

Barr Body (BB)

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Verified step by step guidance

Understand the role of the Y chromosome in sex determination. The Y chromosome is one of the two sex chromosomes in humans, and it plays a crucial role in determining male characteristics.

Identify the key gene responsible for initiating male development. The gene known as the Sex Determining Region Y (SRY) is located on the Y chromosome and is pivotal in triggering the development of male physical characteristics.

Explore the function of the SRY gene. The SRY gene encodes a protein that acts as a transcription factor, which is essential for the formation of testes in the developing embryo.

Differentiate between the SRY gene and other terms mentioned. The SRY gene is distinct from other terms like Sperm Producing Factor (SPF), Testis Determining Region (TDR), and Barr Body (BB), which are either incorrect or unrelated to the determination of maleness.

Conclude that the SRY gene is the correct answer. The SRY gene is the specific region on the Y chromosome that determines maleness by initiating the development of male-specific organs and characteristics.