What is the genotype of a male with colour blindness?YNXnYnXNYXNYXn

A male who has normal vision marries a woman who is colorblind. What percentage of  their male offspring will be colorblind?

Which of the following statements is not true?Men have one X chromosome and one Y chromosomeWomen have two X chromosomesBoth men and women carry two alleles for the colour blindness geneThe Y chromosome is smaller than the X chromosome2Colour blindness is controlled by a sex-linked gene with two alleles on the X chromosome: a dominant normal (N) allele and a recessive colour blind (n) allele. What is the genotype of a female carrier of colour blindness?XnYXNXnXNXNXnXn3What is the genotype of a male with colour blindness?YNXnYnXNYXNYXn4There are four different phenotypes of blood types in humans, which are determined by three different alleles: A, B and O. Which of the following are genotypes of a person with blood group O?IOIO onlyIAIB or IOIOIAIO  or IOIOIBIO  or IOIO5What is meant by the term ‘codominance’?One allele of a gene is dominant over the otherA gene is only found on the X chromosomeTwo different alleles of a gene are expressed equallyA gene has only one allele

Red-green color blindness is much more common in males because Blank______.Multiple choice question.females have more cone cells than males dothe disease is triggered by testosteroneestrogen has a protective effect on visionthe abnormal gene is on the X chromosome

Why is colorblindness more prevalent among males? Provide a thorough explanation. Use the terms allele and chromosome in your answer.

Red-green colorblindness is inherited as a sex-linked recessive trait. The gene is found on the X chromosome. Can a man with normal color vision father a daughter who is red-green colorblind?No, the expression of the trait skips a generation.Yes, if the man is heterozygous for red-green colorblindness.No, he can't (unless there is a mutation).Yes, if the woman with whom he mates is red-green colorblind.