Three words are shown below: Isomorphic sporophyte gametophyte These words can be used in the spaces P, Q, and R to complete the sentence below. Thallus in Ulva is of two types. The one with 26 chromosomes is called P and the other with 13 chromosomes is called Q. Morphologically both gametophyte and sporophyte are exactly alike hence called R.
Correct answer: B. Option B
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation
Sporophyte is diploid (2n), gametophyte is haploid(n). Since in the sentence above, P corresponds to 26 chromosomes which is a diploid number, considering the chromosome number mentioned later in the sentence. P is thus sporophyte and Q is gametophyte. Only option B has this P and Q place under these correct heading, hence are our answers. As the name suggests "isomorphic" means the same morphology.
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