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

2. Mendel's Laws of Inheritance

Sex-Linked Genes

Genetics

2. Mendel's Laws of Inheritance

Sex-Linked Genes

Previous problemNext problem

Struggling with Genetics?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

X-linked genes differ from Y-linked genes in which of the following ways?

X-linked genes are inherited exclusively from the father, while Y-linked genes are inherited from both parents.

X-linked genes are always dominant, while Y-linked genes are always recessive.

X-linked genes are present on both the X chromosomes in females, while Y-linked genes are only present on the Y chromosome in males.

X-linked genes determine only male-specific traits, while Y-linked genes determine female-specific traits.

Previous problemNext problem

Verified step by step guidance

Understand the difference between X-linked and Y-linked genes by recalling their chromosomal locations: X-linked genes are located on the X chromosome, while Y-linked genes are located on the Y chromosome.

Recognize that females have two X chromosomes (XX), so X-linked genes are present in two copies in females, whereas males have one X and one Y chromosome (XY), so Y-linked genes are only present in males.

Recall that X-linked genes can be inherited from both parents because females inherit one X chromosome from each parent, but Y-linked genes are inherited only from the father since only males have a Y chromosome.

Note that dominance or recessiveness is a property of specific alleles, not inherently linked to whether a gene is on the X or Y chromosome, so statements about all X-linked genes being dominant or all Y-linked genes being recessive are incorrect.

Understand that X-linked genes are not limited to male-specific traits; they can affect both males and females, while Y-linked genes typically influence male-specific traits because only males have a Y chromosome.