Answer:
a. The maternal copy of UBE3A is expressed and the paternal copy is silenced.
Explanation:
When UBE3A chromosome is in neurons, paternal allele is silent and maternal allele is expressed in process of genomic imprinting. In some cases UBE3A is expressed from both paternal and maternal chromosomes. The paternal chromosome is blue whereas maternal chromosome is magenta.
Answer:
a life event happens when some benefits are lost to gain other benefits
Answer: Warm, moisten and purify inspired air.
Explanation:
They protect bacterial cells from white blood cells.
dna, genes, animo, to acids