6 Truelfalse: Mark the following statements as true (T) or false (F). If the sta

Question

6 Truelfalse: Mark the following statements as true (T) or false (F). If the statement is false, correct it to make it a true statement. a. Gametes result from two rounds of cell division. b. Meiosis results in diploid cells. c. Homologous chromosomes overlap at points called chiasmata or crossover d. The DNA replicates prior to the start of meiosis I. 7 Number the following events and number 5 next to the final event. of spermatogenesis in the proper order, with number 1 next to the first event Primary spermatocytes undergo meiosis I to yield two secondary spermatocytes Spermatids migrate to the epididymis to undergo spermiogenesis. The two secondary spermatocytes undergo meiosis I to produce four haploid spermatids. Spermatogonia divide into more spermatogonia and primary spermatocytes. Spermatogonia undergo repeated rounds of mitosis.

Explanation / Answer

6)

a. true

b. false - Meiosis results in haploid cells.

c. true

d. False - DNA replication takes place in S-phase of the Interphase before Meiosis I takes place.

7) Spermetogoa divide into more spermetogonia and primary spermetocytes. - 1

Spermetogonia undergo repeated rounds of mitosis. - 2

Primary spermatocytes undergo meiosis I to yeild two secondary spermatocytes. -3

The two secondary spermetocytes undergo meiosis II to produce four haploid spermatids. - 4

Spermatids migrate to the epididymis to undergo spermiogenesis. - 5

8)

9) c. corpus lutem

Spermetogenesis oogenesis It occurs in testis it occurs in ovaries primary spermetocytes divides to form 4 sperms primary oocytes divides to form one ovum and 3 polar body. no polar bodies form polar bodies formed for fertilization spermatids have to transform itself into thread like sperms by the process of spermiogenesis ootids as such takes part in fertilization Both maturation divisions are completed in the testes first maturation division takes place in the ovaries while second takes place after fertilization outside the ovaries.

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