In genetics, why are X-linked recessive disorders such as red-green color blindness and hemophilia far more prevalent in biological males than females?
Answer and explanation
Correct answer: D. Males are hemizygous (one X) and express recessive alleles directly without a second allele
- Step 1: Males () are hemizygous for X-linked genes; inheriting a single recessive mutant X chromosome manifests the disease. Answer: Males are hemizygous (one X) and express recessive alleles directly without a second allele. Why not the others: Females require two copies of the mutant allele to be affected.
Practise more Molecular Biology, Genetics, and Human Physiology.
Free questions with an explanation for every one, and full timed Matura Shtetërore (Albania) mock tests.
More Molecular Biology, Genetics, and Human Physiology questions
- In cell biology, which organelle is responsible for generating the majority of cellular adenosine triphosphate (ATP) via aerobic cellular re…
- In cell biology, what is the primary structural component of the biological cell membrane described by the fluid mosaic model?
- In cell biology, where does the process of glycolysis occur within a eukaryotic cell?
- In cell biology, which cellular organelle contains hydrolytic acid enzymes designed to degrade worn-out cell parts and engulfed pathogens?
- In cell biology, what is the net yield of ATP molecules produced per molecule of glucose solely through the glycolysis stage?
- In cell biology, during which phase of the cell cycle does DNA replication (synthesis) occur?