Because red-green colour-blindness is an X-linked recessive condition, which of the following situations is not possible? a) a colourblind father passes the condition to this daughter b) a colourblind father passes the condition to his son c) a heterozygous mother passes the condition to her daughter d) a heterozygous mother passes the condition to her son
Because red-green colour-blindness is an X-linked recessive condition, which of the following situations is not possible?
a) a colourblind father passes the condition to this daughter
b) a colourblind father passes the condition to his son
c) a heterozygous mother passes the condition to her daughter
d) a heterozygous mother passes the condition to her son
Red-green colour blindness is a deficiency of colour vision so that a person affected by it cannot tell the difference between red and green. This is an X-linked recessive condition.
Which statement is correct?
a) The allele is written as X^r, and an affected female is heterozygous.
b) The allele is written as X^r; an affected male is X^rY and a heterozygous female is X^RX^r
c)The allele is written as X^r and a male with genotype X^RY is affected
d) The allele is written as X^R; a normal male is X^RY and a homozygous recessive female is X^rX^r.
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