Answer:
A. mitochondria is the powerhouse of the cell
Answer:
The need for DNA replication
DNA replication is the process by which a cell makes an identical copy of its DNA. This process is performed at the beginning of every cell division so that when the cell divides, each daughter cell will inherit an identical copy of the DNA.
Requirements for DNA replication
Original DNA template - DNA is a double helix made of two complementary strands. Each strand can be used as a template to create a new DNA molecule.
Free DNA nucleotides – needed to form the new strands.
DNA polymerase – an enzyme that adds new nucleotides to a growing strand of DNA.
Primers – A primer is a short strand of nucleotides that will bind to the 3’ end of the template DNA strand allowing DNA polymerase to add free DNA nucleotides.
Explanation:
https://www.bbc.co.uk/bitesize/guides/zrwhrj6/revision/1
Answer: The correct option is E ( Intermediate filaments are unpolarized).
Explanation:
Intermediate Filaments are usually associated with cells that can withstand mechanical stress which includes claws of animals, hair and makes up the dead remnants of the epidermal cell of the skin. Therefore without the supporting network of intermediate filaments, an epithelium remains intact but the cells are prone to damage by abrasive forces.
Intermediate filaments are so named because they are thicker than actin filaments and thinner than microtubules or muscle myosin filaments
The properties or characteristics of an intermediate filaments that explains the lack of motor proteins is as a result of its subunits which are elongated, not globular and are associated in an anti-polar manner. Therefore, the overall filament has no polarity, and therefore no motor proteins move along intermediate filaments
Answer:
The correct answer would be - observational approach.
Explanation:
Observation approach is the research technique that involves the observation of the subject or participates behavior in their natural habitat or state. This will be one of best approach to study.
Similarly when characterizing new findings various aspect of experimental, Observational details or modelling approaches will help in identification , classification and nomenclature. However, in comparison to experimental and modeling approach is more appropriate method for the rare endangered species.
Thus, the correct answer would be - observational approach.
The environment provides the selective pressure in natural selection. Artificial Selection is a type of choice in which people effectively pick which characteristics ought to be passed onto posterity. People have utilized particular rearing some time before Darwin's Postulates and the disclosure of hereditary qualities. It is the rearing of plants and creatures to deliver attractive qualities. Living beings with the coveted characteristics, for example, size or taste, are misleadingly mated or cross-pollinated with creatures with comparable wanted attributes.
