Which of the following is an example of genomic imprinting in humans?
A) The maternal and paternal alleles of a gene pair are both expressed.
B) One of the two X-chromosomes in females is randomly expressed and the other is repressed.
C) Human males have only one Y-chromosome and one X-chromosome.
D) A random pattern of autosomal allele inactivation is observed.
E) In some allele pairs, only the paternal sourced allele is expressed, and in others, only the maternal sourced allele is expressed.
Answer: E
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If the 13 CODIS SSR loci are genotyped, why does each person (except identical twins) have a unique combination of SSR alleles?
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Why are shelled eggs evolutionarily advantageous?
What will be an ideal response?