In genetics, what is meant by sex linkage?
In humans a sex-linked recessive allele c is responsible for red-green colour blindness - Leaving Cert Biology - Question 5 - 2007
Question 5
In genetics, what is meant by sex linkage?
In humans a sex-linked recessive allele c is responsible for red-green colour blindness. Complete the blank spaces above... show full transcript
Worked Solution & Example Answer:In genetics, what is meant by sex linkage?
In humans a sex-linked recessive allele c is responsible for red-green colour blindness - Leaving Cert Biology - Question 5 - 2007
Step 1
In genetics, what is meant by sex linkage?
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Answer
Sex linkage refers to the association of genes with sex chromosomes. Specifically, it involves genes that are located on the sex chromosomes (X or Y). Such genes exhibit inheritance patterns that differ based on the sex of the individual. For example, the X chromosome carries many genes, including those related to specific traits that may be expressed differently in males and females.
Step 2
Parents
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Answer
X Y
Step 3
Gametes
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Answer
X c
Y c
Step 4
F1
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Answer
X c
X c
Y c
Y c
Step 5
Phenotypes:
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Answer
Sex: Female
Female
Male
Male
Vision: Colour blind
Normal
Colour blind
Normal
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