?Birds are evolved from reptiles, but also differ dramatically. Which features of birds differentiate them from most reptiles?
What will be an ideal response?
Ans: Birds have large eyes, comparatively larger brain, lightweight skeleton, feathers, flight
muscles, lungs that enjoy constant air flow, and a four-chambered heart (shared with crocodiles).
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Which of the following is true of innate behaviors? Innate behaviors _____
A) are only weakly influenced by genes B) occur in invertebrates and some vertebrates but not mammals C) are limited to invertebrate animals D) are expressed in most individuals in a population
Which of the following molecular techniques, or combination of techniques, would be most appropriate for detection and quantitation of an RNA retrovirus, like HIV, in a blood sample in order to establish the patient's viral load?
a. RT-PCR b. Real-time PCR c. Real-time RT-PCR d. Multiplex PCR
The difference between fitness of a given genotype and another genotype considered optimal is called the selection coefficient (s)
What is the selection coefficient for a genotype (aa) that produces an average of 99 offspring when Aa individuals produce an average of 100 offspring?
The basic mechanism of viral multiplication is similar for all viruses
Indicate whether the statement is true or false