With the help of DNA fingerprinting which can be used to determine paternity. There are three babies (Baby A, Baby B and Baby C) in a maternity ward, and three sets of confused and worried parents. (Father and Mother #1 are a couple, as are Father and Mother #2, and Father and Mother #3.) 

You do each PCR reaction and load each one into a separate well of an agarose gel, and then run the gel.

 

 

Why is it that some people show two bands?

#Question id: 11124

#Unit 9. Diversity of Life Forms

A researcher compared the nucleotide sequences of a homologous gene from five different species of mammals with the homologous human gene. The sequence homology between each speciesʹ version of the gene and the human gene is presented as a percentage of similarity.

What probably explains the inclusion of rabbits in this research?

#Question id: 11125

#Unit 7. System Physiology – Animal

In chemical synapses that involve a so-called second messenger, typically a G-protein linked to the postsynaptic receptor is activated when neurotransmitter binds to that receptor. Which of the following represents an activity performed by the activated second messenger?

#Question id: 11126

#Unit 7. System Physiology – Animal

Which of the following is characteristic of the events occurring at an excitatory synapse?

#Question id: 11127

#Unit 7. System Physiology – Animal

As the receptor potential rises higher above threshold, which of the following best characterizes the new frequency of action potentials?

#Question id: 11128

#Unit 7. System Physiology – Animal

Inhibition of pain signals by tactile stimulation of a skin surface involves which of the following selections?

#Question id: 11129

#Unit 7. System Physiology – Animal

Which of the following statements concerning the neuronal membrane at rest is correct?