Bissoy.com
Doctors Medicines MCQs Q&A

Related Questions

Consider the following statements: 1. The chain reaction process is used in nuclear bombs to release a vast amount of energy, but in nuclear reactors, there is no chain reaction. 2. In a nuclear reactor, the reaction is controlled, while in nuclear bombs, the reaction is uncontrolled. 3. In a nuclear reactor, all operating reactors are ‘critical’, while there is no question of ‘criticality’ in case of a nuclear bomb. 4. Nuclear reactors do not use moderators, while nuclear bombs use them. Which of the above statements about operational principles of a nuclear reactor and a nuclear bomb is / are correct?
Consider the following statements.
1. The chain reaction process is used in nuclear bombs to release a vast amount of energy, but in nuclear reactors, there is no chain reaction.
2. In a nuclear reactor, the reaction is controlled, while in nuclear bombs, the reaction is uncontrolled.
3. In a nuclear reactor, all operating reactors are 'critical', while there is no question of 'critically' in case of a nuclear bomb.
4. Nuclear reactors do not use moderators, while nuclear bombs use them.
Which of the above statements about operational principles of a nuclear reactor and a nuclear bomb is/are correct?
How many human mitochondrial proteins are encoded in the mitochondrial genome and synthesized within mitochondria?
In the context of hereditary diseases, consider the following statements : 1. Passing on mitochondrial diseases from parent to child can be prevented by mitochondrial replacement therapy either before or after in vitro fertilization of the egg. 2. A child inherits mitochondrial diseases entirely from the mother and not from the father. Which of the statements given above is/are correct?  
Correct answer for the given blank out of the four alternatives.
The main failings were of conception and a political willingness to settle _________ easy options. _______________ the expansive declarationsof the need "to maintain effective security of all nuclear materials, _______________ includes nuclear materials used in nuclear weapons”, thesummits narrowed their _______________ to civilian holdings __________________ non­nuclear weapon states.
_______________ includes nuclear materials used in nuclear weapons”
With reference to a three-parent baby, consider the following statements: 1. The healthy nuclear DNA is removed from the patient egg cell, leaving behind faulty mitochondrial DNA. 2. Patient nuclear DNA will be transplanted to a donor’s egg with healthy mitochondrial DNA. Which of the statements given above is/are correct?
About what proportion of mitochondrial proteins are encoded by nuclear DNA?
Consider the following statements and choose the correct answer:
1. The structural genes direct the synthesis of cellular proteins through messenger RNA (mRNA)
2. The promoter gene determines whether or not the structural genes are to be repressed by the repressor
3. The regulator gene directs the synthesis of a protein which may be an active repressor or an inactive repressor
Consider the following statements regarding mitochondria and choose the correct answer:
1. Mitochondria are present in all cells which respire aerobically
2. They are absent in bacteria, where the plasma membrane has respiratory enzymes
3. Cells with high metabolic activity have a high number of mitochondria
In leguminous plants, both the rhizobium genes and the plant genes influence nodulation and nitrogen fixation. Which one of the following functions is not encoded by the host plant genes?