Question 1 The lateral flow strip test shown below is made to detect the presenc

ID: 174134 • Letter: Q

Question

Question 1

The lateral flow strip test shown below is made to detect the presence of Salmonella bacteria in food. What molecule is the test designed to detect?

A) Single type of protein made by salmonella

B) Any kind of bacteria protein, even bacteria that aren’t able to make people sick

C) DNA sequence found only in Salmonella

D) DNA sequence found in all living thiings

Question 2

Gel electrophoresis tests such as the one shown below detect specific DNA sequences. The DNA sequences appear in different parts of the gel because:

A) Some DNA is more slippery than other DNA

B) Some sequence are longer than others and the length determines how fast the DNA runs through the gel

C) Some DNA has a higher density than other DNA samples and the density of the DNA determines the way it runs through these gels

MaxSignal salmonella Test Strip Kit Negative Positive

1. The lateral flow strip test is used to detect the antigen produced specifically by Salmonella bacteria in food.

2. In agarose gel electrophoresis, when an electric field is appllied, DNA migrates from negative cathode to positive anode through the pores in gel.

So, the answer is B. Some sequence are longer than others and the length determines how fast the DNA runs through the gel

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