The crossing over takes place in
A. Leptotene
B. Zyogotene
C. Pachytene
D. Diakinesis
Answer: Option C
Solution(By Examveda Team)
The crossing-over takes place in Pachytene.Pachytene is the stage of meiotic prophase that immediately follows the zygotene and is characterized by paired chromosomes thickened and visibly divided into chromatids and by the occurrence of crossing-over.
During this stage, exchanges of chromosome material between maternal and paternal homologous chromosomes occur by crossing over. At the points of crossing over, bridges (chiasmata) are seen in variable numbers. Depending on the chiasmata, different aspects of the chromosomes can be observed.
Related Questions on Genetics and Plant Breeding
Genetic code was discovered by
A. Khorana and Methaei
B. Flemming and Methaei
C. Holley, Nirenberg and Khorana
D. Holley and Nirenberg
Progeny of breeder seed is referred to as
A. Breeder seed
B. Nucleus seed
C. Foundation seed
D. Certified seed
Molecular basis of organ differentiation depends on the modulation in transcription by
A. RNA pol
B. Transcription factor
C. Anticodon
D. All of the above
The phenomenon of linkage was first observed by
A. Bateson and Punnet
B. Nilson
C. Hugo de Vries
D. Mendel
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