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AP Biology MCQ Question with Answer

AP Biology MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 15
In angiosperms, what is the female reproductive structure that contains the ovules?

Stamen
Pistil (carpel)
Sepal
Petal
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Question No : 16
The relationship between a bee and a flower, where the bee obtains nectar and pollen while aiding in pollination, is an example of:

Mutualism
Parasitism
Competition
Commensalism
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Question No : 17
What is the process by which segments of DNA are shuffled during the formation of gametes, leading to genetic diversity?

Meiosis
Mitosis
Replication
Crossing over
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Question No : 18
Which term refers to structures that have no apparent function but resemble functional structures in other organisms?

Homologous structures
Analogous structures
Vestigial structures
Adaptive structures
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Question No : 19
In a DNA molecule, adenine (A) pairs with:

Thymine (T)
Cytosine (C)
Guanine (G)
Uracil (U)
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Question No : 20
What is the term for a virus that infects bacteria?

Bacteriophage
Retrovirus
Prion
Viroid
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Question No : 21
What is the term for an infectious protein that can cause disease in animals?

Bacteriophage
Virus
Prion
Viroid
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