Spermatogenetic cells of golden snail Pomacea canaliculata (D'Orb).

Date

10-1998

Degree

Bachelor of Science in Biology

Major Course

Major in Ecology Genetics

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Adelina A. Barrion

Abstract

The testes of golden snails Pomacea canaliculata (D' Orb) collected from Pili Drive, U.P. College, Los Banos were fixed in freshly prepared Carnoy's solution and macerated in 2% lacto-aceto-orcein. Permanent mounts of spermatogenetic cells were prepared and examined under the light microscope. Meiotic index was determined. Results of meiotic index suggest that insemination potential was relatively high (59.9%). Four types of Interphase nuclei forms were observed with different sizes. Chromosome count ranged from 6 to 15 with a mode of n = 12. Pachytene chromosomes were the most frequent stage observed while Telophase I was the least observed. Average lengths of pachytene chromosomes ranged from 0.112 to 0.059 . Meiotic divisions were normal. Qualitative analyses were done on interphase and meiotic stages.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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