Answer:
The correct answer will be-
1. Nucleosomes
2. Chromatin
3. Sister chroamtid
4. Centromere
Explanation:
The DNA is a very long molecule which if has to be passed on to the daughter cell as it is will cause problems. So, to reduce problems a cell form tightly packed structure of DNA so that they can be passed easily to the daughter cell.
The packaging of DNA begins with the wrapping of the DNA around histone proteins which forms the 11 nm basic structural units called nucleosomes. The nucleosomes start condensing each other and form 30 nm structure chromatin fibres.
The chromatin fibres undergo replication during S phase which produces an exact copy of the chromatin called sister chromatids bound to each other at a central point called centromere which helps the separation of the chromatids during M phase.
The question is incomplete as it does not have the options which are:
A) creatine phosphate.
B) glycolysis.
C) substrate phosphorylation.
D) oxidative phosphorylation.
E) de novo synthesis.
Answer:
D) oxidative phosphorylation.
Explanation:
The ATP is the energy molecule which provides energy to every metabolic process in the organism.
The ATP in humans is produced by a process called cellular respiration where the last phase of the process called electron transport chain produces the highest amount of protein. The electron transport chain is also known as the oxidative phosphorylation as the oxygen is gained and electrons are lost during the phase.
Thus, D) oxidative phosphorylation is correct.
Botanist
Biologist/Biological Scientist: A scientist who studies living organisms and living systems. Botanist: A scientist who studies plants. Chemical Ecologist: A scientist who studies chemicals in the interactions of living organisms. Chief Scientist: A scientist who leads other scientists in a particular research area.
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