There are two main mechanisms in which bacteria receive extracellular genes. ... Horizontal gene transfer contributes to the spread of antibiotic resistance through the exchange of genetic material across genera, which increases the potential for a harmful, antibiotic resistant bacteria to develop.
Answer:
Adhesion.
Explanation:
Water molecules exhibit the properties of cohesion and adhesion. Adhesion refers to the property of water molecules to stick to some other substance while cohesion is the property of water molecules to stick together. Hence, sticking of water molecules to the penny is example of adhesion where water molecules are attracted towards the penny.
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.