X chromosome: gene for color blindness, Matt Ridley
Interviewee: Matt Ridley. The two genes that produce red and green light-sensitive proteins are located on the X chromosome. Mutations in these genes can cause color blindness. Color blindness is a common inherited sex-linked disorder that affects a personâ€™s ability to see or recognize certain colors. Eight to ten percent of all males and one half of a percent of all females are color-blind. (DNAi Location: Genome > Tour > Genome spot > Chromosome X: Color vision > A chromosome X story)
Most of our chromosomes come in pairs; we get one from each parent. But the X chromosome is an exception. Women have a pair of X chromosomes, men have only one from their mother. Color blindness is found in men much more often than women, and the reason is because men don't have a spare X chromosome. So if the red-green color blindness gene is not working in a man, there's no spare one to replace it with.
red green color blindness ridley talks chromosome mutations chromosome x matt ridley sensitive proteins x chromosome x chromosomes x story color vision interviewee sex linked disorder genes females pairs colors
- ID: 15419
- Source: DNALC.DNAi
- Download: Theora Video MPEG 4 Video
15940. What is color blindness?
The two genes that produce red and green light-sensitive proteins are located on the X chromosome.
15415. Chromosome 20: gene for adenosine deaminase, Matt Ridley
Matt Ridley talks about chromosome 20, gene for adenosine deaminase.
15413. Chromosome 18: BCL2 oncogene, Matt Ridley
Matt Ridley talks about chromosome 18, BCL2 oncogene.
16262. Concept 10: Chromosomes carry genes.
Fruit flies help to reveal that chromosomes carry genes.
16263. Chromosomes carry genes.
DNAFTB Animation 10:Thomas Hunt Morgan describes his discoveries using fruit flies.
15398. Chromosome 3: gene associated with alkaptonuria, Matt Ridley
Matt Ridley talks about chromosome 3, gene associated with alkaptonuria.
15399. Chromosome 4: Huntington's Disease, Matt Ridley
Matt Ridley talks about chromosome 4, Huntington's Disease.
15397. Chromosome 2: fusion of 2 small chromosomes, Matt Ridley
Matt Ridley talks about chromosome 2, fusion of 2 small chromosomes.
16249. Specialized chromosomes determine sex.
DNAFTB Concept 9: Study of meiosis revealed the chromosomal basis of sex.
15420. Y Chromosome: SRY gene responsible for the masculinization process, Matt Ridley
Matt Ridley talks about Y Chromosome, SRY gene responsible for the masculinization process.