Open Question
In a life cycle with alternation of generations, multicellular haploid forms alternate witha. unicellular haploid forms.b. unicellular diploid forms.c. multicellular haploid forms.d. multicellular diploid forms.
27. Protists
Protist Life Cycles
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Alternation of generations __________.
A
is unique to plants
B
is distinguished by a unicellular haploid stage and a multicellular diploid generation
C
consists of a diploid gametophyte stage alternating with a haploid sporophyte stage
D
is distinguished by a multicellular haploid generation and a unicellular diploid generation
E
is distinguished by haploid and diploid stages that are both multicellular
Verified step by step guidance1
Understand the concept of alternation of generations: It is a life cycle that occurs in plants and some algae, involving two distinct forms that alternate with each other.
Identify the two stages involved: The haploid stage, known as the gametophyte, and the diploid stage, known as the sporophyte.
Recognize that both stages are multicellular: In alternation of generations, both the gametophyte and sporophyte stages are multicellular, which is a key characteristic.
Differentiate between the stages: The gametophyte produces gametes (sperm and eggs) through mitosis, while the sporophyte produces spores through meiosis.
Conclude that the correct description of alternation of generations is that it is distinguished by haploid and diploid stages that are both multicellular.
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