Biology Questions

Q:

Where would rna polymerase attach?

A) Phosphate groups B) DNA
C) Both A & B D) None of the above
 
Answer & Explanation Answer: B) DNA

Explanation:

RNA polymerase attach to DNA molecule.

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Q:

Lysogeny can result in all of the following except

A) Acquisition of new characteristics by the host cell B) Transduction of specific genes
C) Immunity to reinfection by the same phage. D) Immunity to reinfection by any phage
 
Answer & Explanation Answer: D) Immunity to reinfection by any phage

Explanation:

Lysogeny can result in all of the following except Immunity to reinfection by any phage. Lysogeny means phage DNA is incorporated in Host cell DNA. 

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Q:

In autotrophic bacteria, where is chlorophyll located?

A) in the nucleoid B) in the infolded plasma membrane
C) in the ribosomes D) in chloroplast membranes
 
Answer & Explanation Answer: B) in the infolded plasma membrane

Explanation:
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Q:

The terminal part of the carpel in a flower, which may be sticky is ______

A) Ovary B) Style
C) Stigma D) Anther
 
Answer & Explanation Answer: C) Stigma

Explanation:
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Q:

Activation of the receptors by stimuli is called

A) Adaptation B) Perception
C) Habituation D) Sensation
 
Answer & Explanation Answer: D) Sensation

Explanation:

Sensation is the activation of the receptors by stimuli.

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Q:

Androgens such as testosterone are produced by the

A) Spermatoganea B) Interstitial cells
C) Seminiferous D) None of the above
 
Answer & Explanation Answer: B) Interstitial cells

Explanation:

Androgens such as testosterone are produced by the Interstitial cells.

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Q:

Which of the following is a treatment for heart disease?

A) Percutaneous Coronary Intervention (PCI) B) Coronary Artery Bypass Grafting(CABG)
C) Heart transplant D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

All the above options are the treatments for heart disease.

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Q:

Select the correct statement about active and passive immunity.

A) A vaccination is an example of the introduction of passive immunity into the body B) Active and passive humoral immunity are both mechanisms of adaptive immunity that useantibodies
C) Immunological memory is established by passive immunization D) The antibodies utilized in active immunity are acquired from another organism
 
Answer & Explanation Answer: B) Active and passive humoral immunity are both mechanisms of adaptive immunity that useantibodies

Explanation:
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