Answer:
B)attach specifically to host cell receptors
Explanation:
Viral spikes are one of the envelope proteins. These proteins are coded for by viral genes. Viral spikes project from the envelope surface. They are also called peplomers. One of the functions of these spikes is to specifically interact with the receptors present on the surface of the host cell to mediate the attachment of the virus to the host cell surface. Viral spikes and the host cell surface receptors are complementary to allow their specific binding. For example, the spike protein of the SARS-coronavirus bind specifically to the human host cell receptor ACE2.
An exoskeleton is the outer skeleton of an animal to protect them. An exoskelton is also called a shell.
Complete question:
A cross of 2 ♂♀unknown plants produces offspring where three-fourths (¾) have axial flowers and one-fourth (¼) have terminal flowers. What are the genotypes of the parent plants?
Answer:
Both parent plants are heterozygous for the trait. Their genotype is Aa.
Explanation:
Due to technical porblems, you will find the complete explanation in the attached files
Answer: Health outcomes
Explanation:
Health outcome can be defined as the events that occurs after an intervention or care, these events can be measured clinically by physical examination, laboratory testing and imaging; self reported or observed.
Health outcomes are defined as changes in health of an individual or a group of individuals that result from specific healthcare interventions. Example of health outcome is improvement in a patient's eye sight after a cataract surgery.
It must occur in the nucleus where the DNA in the cell is located.
