Given below are two statements:
Statement I: In eukaryotes there are three RNA polymerases in the nucleus in addition to the RNA polymerase found in the organelles.
Statement II: All the three RNA polymerases in eukaryotic nucleus have different roles.
In the light of the above statements, choose the correct answer from the options given below:
Match List-I with List-II:
List - I | List - II | ||
---|---|---|---|
(A) | Histones | (I) | Loosely packed chromatin |
(B) | Nucleosome | (II) | Densely packed chromatin |
(C) | Euchromatin | (III) | Positively charged basic proteins |
(D) | Heterochromatin | (IV) | DNA wrapped around histone octamer |
Choose the correct answer from the options given below:
Given below are two statements:
Statement I: Failure of segregation of chromatids during cell cycle resulting in the gain or loss of whole set of chromosome in an organism is known as aneuploidy.
Statement II: Failure of cytokinesis after anaphase stage of cell division results in the gain or loss of a chromosome is called polyploidy.
In the light of the above statements, choose the correct answer from the options given below:
Recombination between homologous chromosomes is completed by the end of