Question

question 20 (1 point)
transmission means the disease is spread through a population from
one infected individual to another.
vertical
horizontal
nosocomial
indirect
question 21 (1 point)
palindromes are sequences of dna that are identical when read from the 5 to 3
direction on one strand of dna and from the 5 to 3 direction on the other strand.
true
false
question 22 (1 point)
epidemiology is the study of disease in individuals.
true
false
question 23 (1 point)
the pcr technique operates by cycling through three basic steps. these three steps
include all of the following except
denaturation.
priming.
extension.
cloning.

Explanation:

Question 20

Vertical transmission is from parent to offspring. Nosocomial is hospital - acquired. Indirect is via a vector. Horizontal is from one individual to another in a population.

Palindromes in DNA are sequences that are the same when read \(5'\) to \(3'\) on one strand and \(5'\) to \(3'\) on the complementary strand.

Epidemiology is the study of disease in populations, not just individuals.

Answer:

Horizontal

Question 21