The gametophyte of a fern is

(a) haploid.
(b) photoautotrophic.
(c) a structure that produces eggs and/or sperm.
(d) all of the above.


(d) all of the above.

Biology & Microbiology

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What is one technique that is used to identify a specific RNA sequence of a sample from a library?

A. Western blotting B. Northern blotting C. Southern blotting D. Eastern blotting

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Many breast cancers involve mutations in the BRCA1 gene. Explain the difference between sporadic

and familial breast cancer caused by this gene at a molecular level.

What will be an ideal response?

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The loudest sounds a nurse hears while listening to a patient's heart through a stethoscope are caused by 

A. closing of the AV valves. B. opening of the semilunar valves. C. depolarization of the ventricles. D. contraction of the atria. E. contraction of the ventricles.

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Explain how the use of Bt crops can result in the evolution of pesticide-resistant insect populations. What issues may

arise in this scenario? What will be an ideal response?

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