Cytological consequences of crossing over
Cytological Consequences of Crossing Over
Test your knowledge of one of the most intriguing processes in genetics: crossing over. This quiz explores the fundamental aspects of crossing over during meiosis and its implications for genetic variation.
Challenge yourself with questions that cover:
- The stages of meiosis where crossing over occurs
- Factors affecting the frequency of crossing over
- Key terminology and historical insights related to genetic recombination
1) CROSSING OVER TAKES PLACE IN WHICH STAGE?
I) Diakinesis Stage
Ii) Anaphase Stage
Iii) Pachytene Stage
Iv) Leptotene Stage
2) THE PERCENTAGE OF CROSSING OVER WILL BE MORE IF?
I) Genes are not linked
Ii) Genes are located in a different cell
Iii) Linked genes are located close to each other
Iv) Linked genes are located far apart from each other
3) CROSSING OVER TAKES PLACE DURING?
I) Prophase I
Ii) Metaphase I
Iii) Prophase II
Iv) Anaphase
4) SYNAPSED CHROMOSOME IN MEIOSIS WRAP AROUND EACH OTHER TO FORM ?
I) Tetrad
Ii) Bivalent
Iii) L –shaped structure
Iv) Chiasmata
5) CHIASMATA FIRSTLY SEEN IN ?
I) Leptotene
Ii) Diplotene
Iii) Zygotene
Iv) Pachytene
6) THE WORD “CROSSING OVER” IS GIVEN BY ?
I) Morgan
Ii) Darlington
Iii) Muller
Iv) Bateson
7) CROSSING OVER IN DIPLOID ORGANISM IS RESPONSIBLE FOR ?
I) Dominance of genes
Ii) Linkage between genes
Iii) Segregation of alleles
Iv) Recombination of linked alleles
8) WHAT IS THE UNIT OF CROSSING OVER ?
I) Cistron
Ii) Muton
Iii) Recon
Iv) None of the above
9) CROSSING OVER THAT RESULTS IN GENETIC RECOMBINATION IN HIGHER ORGANISMS OCCURS BETWEEN ?
I) Two daughter nuclei
Ii) Two different bivalents
Iii) Sister chromatids of a bivalent
Iv) Non-sister chromatids of a bivalent
10) CHIASMA SHOWS THE SIGHTS OF ?
I) Spindle formation
Ii) Synapsis
Iii) Crossing over
Iv) None of these
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