Question Detail

BIO 201 Genetics 1 Objective Question
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Question

How does double fertilization in angiosperms differ fundamentally from dispermy in animals?
Options
A In plants, one sperm fertilizes the egg while the second fertilizes the central cell; in animal dispermy, two sperm fertilize one ovum abnormally
Correct Answer
B Double fertilization produces an inviable polyploid embryo, while animal dispermy generates viable twins
C Double fertilization involves two diploid pollen grains fusing with an animal egg
D Animal dispermy produces triploid endosperm, whereas plant double fertilization produces haploid gametophytes
Correct Answer

Option A is the correct answer.

Detailed Explanation

Double fertilization is a normal plant process where one sperm fertilizes the egg (2n zygote) and another fertilizes the central polar nuclei (3n endosperm), unlike pathological dispermy in animals.

Hint

No hint available

Question Info

Course: BIO 201
Topic: Genetics 1
Type: Objective
Difficulty: Not specified
Question 221 of 285
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