A) interphase
B) zygotene
C) diplotene
D) metaphase
Correct Answer: C
Solution :
A Lampbrush chromosome is made up of two homologous chromosomes held at several places by chiasmata. The chromosomes are found in oocytes of many invertebrates and all vertebrates except some mammals. Lampbrush chromosomes are found during the extended diplotene phase of 1st meiotic division. The interphase is divided into \[{{G}_{1}}\] phase, S phase and \[{{G}_{2}}\] phase. RNA and proteins are synthesized during \[{{G}_{1}}\] phase. Replication of DNA takes place during S-phase. Cell organelles replicate during \[{{G}_{2}}\] phase of interphase. The homologous chromosomes pair during zygotene stage of prophase-I of meiotic division-I. This pairing is called synapsis and each pair as bivalent. The chromosomes are arranged on the equator and ready for movement towards the pole during metaphase.
You need to login to perform this action.
You will be redirected in
3 sec
