Which of the following statements are correct? Explain your answers. Centrosomes are replicated before m phase begins. Two sister chromatids arise by replication of the DNA of the same chromosome and remain paired as they line up on the metaphase plate. Interpolar microtubules attach end-to-end and are therefore continuous from one spindle pole to the other. Microtubule polymerization and depolymerization and microtubule motor proteins are all required for DNA replication. Microtubules nucleate at the centromeres and then connect to the kinetochores, which are structures at the centrosome regions of chromosomes.
Bacterial Genomics
The study of the morphological, physiological, and evolutionary aspects of the bacterial genome is referred to as bacterial genomics. This subdisciplinary field aids in understanding how genes are assembled into genomes. Further, bacterial or microbial genomics has helped researchers in understanding the pathogenicity of bacteria and other microbes.
Transformation Experiment in Bacteria
In the discovery of genetic material, the experiment conducted by Frederick Griffith on Streptococcus pneumonia proved to be a stepping stone.
Plasmids and Vectors
The DNA molecule that exists in a circular shape and is smaller in size which is capable of its replication is called Plasmids. In other words, it is called extra-chromosomal plasmid DNA. Vectors are the molecule which is capable of carrying genetic material which can be transferred into another cell and further carry out replication and expression. Plasmids can act as vectors.
Which of the following statements are correct? Explain your answers.
- Centrosomes are replicated before m phase begins.
- Two sister chromatids arise by replication of the DNA of the same chromosome and remain paired as they line up on the metaphase plate.
- Interpolar microtubules attach end-to-end and are therefore continuous from one spindle pole to the other.
- Microtubule
polymerization and depolymerization and microtubule motor proteins are all required forDNA replication. - Microtubules nucleate at the centromeres and then connect to the kinetochores, which are structures at the centrosome regions of chromosomes.
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