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Meiosis and Genes
Concept Questions

Question #1

One very big advantage to using the brewer's yeast as an experimental organism for studies of biological information and inheritance, is that cells of this yeast can be grown in both the haploid and diploid genetic state. Another advantage is that all of the products of a single meiosis stay together, and can be seen and manipulated using a light microscope.

In which of the following links is the process of studying the products of a single meiosis described and the structures involved illustrated?

Link-#103 Link-#128 Link-#254 Link-#156

Question #2

Mutants of haploid yeast cells which now need an external supply of tryptophan can be caused by a range of mutagens. But how can the scientist determine which of these mutants needs added tryptophan and which do not?

In which of the following links is the selection procedure described?

Link-#288 Link-#112 Link-#214 Link-#193

Question #3

In preparation for a meiotic division (which is the last division this cell will ever make), a diploid eukaryote completes the first three phases of the cell cycle in the usual manner. In S phase all the DNA molecules in the nucleus are duplicated.

In which of the following links is the consequence and outcome of the DNA synthesis process in S-phase of meiosis described and explained?

Link-#144 Link-#210 Link-#191 Link-#171

Question #4

How do you follow genes as they are replicated, sorted out, divided and distributed into other cells in either mitosis or meiosis?

In which of the following links is a technique for identifying and following the history of a gene described?

Link-#241 Link-#228 Link-#298 Link-#235

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© 2002, Professor John Blamire