You are asked by a colleague to evaluate a 5-year-old boy as a second opinion. he has a history of chronic and recurrent upper respiratory tract infections, several admissions to the hospital for pneumonia, and three surgeries for pe tubes for chronic otitis media. of note is a right sided heart on repeated radiographs. convinced you know the diagnosis based on history alone, you confirm your diagnosis with a biopsy of the nasal mucosa. you expect to find which of the following?
a. eosinophilic infiltrate
b. bordetella pertussis
c. absence of nasal mucous glands
d. random orientation of cilia
e. nasal polyps

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.

c: warm water flows from the western tropical pacific toward south america. that should be the right answer! hope it .

i think its white blood cells

i hope this

the right option is; decreased genetic variation  

decreased genetic variation describes the effect of this environmental change.

genetic variation is the naturally occurring genetic diversities or differences between organisms of the same species in a population. genetic variation allows the survival and adaptability of a species when they encounter changing environmental conditions. when an endangered species reduces, it loses genetic variation which may not be restored even if the species rebound and will only be recovered through the gradual collection of mutations over many years.