Aerial roots perform a number of functions unlike the usual functions performed by roots stationed on soils. They help with air exchange, propagation, stability and nourishment. In many cases, aerial roots can be removed without harm to the plant
If a dominant allele pairs up with a recessive allele, the dominant allele is what is physically shown, it over powers the recessive allele.
Answer:
The pathogen is Pasteurella multicida.
Explanation:
Pastuerella multicida is a gram negative, non motile bacteria that is penicillin sensitive and belongs to the family pasteurellaceae. It is a common cause infection from dogs and cats bites.
Gram staining is a method use to distinguish and classify bacterial species into large groups which are either gram positive or gram negative.
Gram negative bacteria are bacteria that do not retain the crystal violet stain used in their gram staining while
Gram positive bacteria are bacteria that retain the crystal violet stain by their thick peptidoglycan cell wall found in them.
Human blood groups are governed by three alleles. These are called I A ; I B ; I O .
I B shows the codominance
I O is recessive to both other alleles
