Question

Fill in the missing item in each sentence, and then put the sentences in order starting with the earliest event in spermatogenesis. Not all terms will be used.

a) Sperm, Meiosis I, Spermatogonia, Seminiferous tubules
b) Spermatogonia, Seminiferous tubules, Meiosis I, Sperm
c) Seminiferous tubules, Spermatogonia, Sperm, Meiosis I
d) Seminiferous tubules, Meiosis I, Spermatogonia, Sperm

Answer 1

The correct order of events in spermatogenesis, starting from the earliest, is spermatogonia, seminiferous tubules, Meiosis I, and then sperm (option b).

Step-by-step explanation:

The student's question involves arranging the stages of spermatogenesis in the correct sequence. We know that spermatogenesis begins with spermatogonia lining the seminiferous tubules, which then undergo mitosis to create primary spermatocytes. These primary spermatocytes go through Meiosis I, forming secondary spermatocytes, which then undergo Meiosis II to eventually become sperm.

1. Spermatogonia
2. Seminiferous tubules
3. Meiosis I
4. Sperm

The correct sequence is b) Spermatogonia, Seminiferous tubules, Meiosis I, Sperm.