Indicate true (T) and false (F) statements below regarding meiosis in eukaryotic cells. Your answer would be a four-letter string composed of letters T and F only, e.g. TFFF.
( ) Bivalents form before prophase I.
( ) Crossing-over begins before the synaptonemal complex assembly.
( ) Chiasmata can first be seen under the microscope after the disassembly of the synaptonemal complexes.
( ) All recombination events lead to crossovers.

Question

Indicate true (T) and false (F) statements below regarding meiosis in eukaryotic cells. Your answer would be a four-letter string composed of letters T and F only, e.g. TFFF.
( )	Bivalents form before prophase I.
( )	Crossing-over begins before the synaptonemal complex assembly.
( )	Chiasmata can first be seen under the microscope after the disassembly of the synaptonemal complexes.
( )	All recombination events lead to crossovers.

Quizplus · Accepted Answer

Bivalents form and recombination begins during leptotene in prophase I. The synaptonemal complex is formed during zygotene and pachytene, and disassembled in diplotene, which is when chiasmata become visible. Only some recombination events lead to crossovers; that is, reciprocal exchange of DNA.

Indicate True (T) and False (F) Statements Below Regarding Meiosis