Refer to the life cycles illustrated in Figure 13.1 to answer the following questions.

-In a life cycle such as that shown in part III of Figure 13.1, if the zygote's chromosome number is 10, which of the following will be True?

Question

Refer to the life cycles illustrated in Figure 13.1 to answer the following questions.

-In a life cycle such as that shown in part III of Figure 13.1, if the zygote's chromosome number is 10, which of the following will be True?

Quizplus · Accepted Answer

In this life cycle, the sporophyte is diploid and produces haploid spores through meiosis. Each spore has half the chromosome number of the sporophyte, so each spore has 5 chromosomes. The gametophyte is haploid and produces gametes through mitosis. Each gamete has half the chromosome number of the gametophyte, so each gamete also has 5 chromosomes. Therefore, the gametophyte's chromosome number per cell is 5, and the sporophyte's chromosome number per cell is 10 (since it is diploid).

Refer to the Life Cycles Illustrated in Figure 13