The presences of different genes for several types of hemoglobin in mammals, but not in sharks and

many other vertebrates, is evidence of ____ of genetic material.



a. an inversion
b. duplication
c. reciprocal translocation
d. deletion
e. both duplication and deletion


B

Biology & Microbiology

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Which of the following has been associated with a form of liver cancer?

A. Human T-cell lymphotropic virus B. Hepatitis A virus C. Human papilloma virus D. Hepatitis B virus

Biology & Microbiology

AGAMOUS is a gene that has been implicated in the regulation of stamen formation in Arabidopsis flowers.  If this is true, a mutant with a functional AP3 gene but a nonfunctional AGAMOUS gene would  

A.  produce petals but not stamens. B.  produce stamens but not petals. C.  produce petals and stamens. D.  not produce stamens or petals. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean?   Gather Content · What do you already know about the evolution of flower development genes?   Consider Possibilities · Consider the different answer options. Which can you rule out?   Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?   Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Biology & Microbiology

Which antibodies cross the placenta and protect the fetus?

A. IgA B. IgG C. IgM D. IgD

Biology & Microbiology

The pituitary gland is controlled by the:

a. pineal gland b. pancreas c. medulla d. thalamus e. hypothalamus

Biology & Microbiology