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Daily NEET MCQ- February 25, 2022 - NEET MCQ


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10 Questions MCQ Test - Daily NEET MCQ- February 25, 2022

Daily NEET MCQ- February 25, 2022 for NEET 2024 is part of NEET preparation. The Daily NEET MCQ- February 25, 2022 questions and answers have been prepared according to the NEET exam syllabus.The Daily NEET MCQ- February 25, 2022 MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Daily NEET MCQ- February 25, 2022 below.
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Daily NEET MCQ- February 25, 2022 - Question 1

Rakesh and Reshma have difficulty conceiving a baby. They consulted a sex therapist. Sperm count of Rakesh was normal but the doctor observed that the motility of his sperm was less. What part of sperm do you think has the issue?

Detailed Solution for Daily NEET MCQ- February 25, 2022 - Question 1

Mitochondria are present in the middle piece of the sperm. They are essential for producing energy required for movement of tail. This is essential for movement through the genital tract and oviduct before sperm encounters the egg. Rakesh might have less or poorly functional mitochondria, which prevent his normal count of sperms from moving along the genital tract.

Hence, the correct option is (D).

Daily NEET MCQ- February 25, 2022 - Question 2

Which of these is not an important component of initiation of parturition in humans?

Detailed Solution for Daily NEET MCQ- February 25, 2022 - Question 2

Release of Prolactin is not an important component of initiation of parturition in humans.

  • At the end of gestation, the completely developed foetus is expelled out. This process is called parturition. 
  • Parturition is controlled by a complex neuroendocrine mechanism.
  • Estrogen and progesterone ratio increases as estrogen levels rise significantly. 
  • Prostaglandins, which stimulate uterine contractions are also produced that act on myometrium. 
  • Oxytocin, the main hormone, also called as birth hormone is released by maternal pituitary, which brings about strong uterine contractions. 
  • Prolactin is a lactation hormone that has no role in initiation of parturition.

Hence, the correct option is (A).

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Daily NEET MCQ- February 25, 2022 - Question 3

The correct naming of the compound CH≡C-CH=CH-CH3 is __________

Detailed Solution for Daily NEET MCQ- February 25, 2022 - Question 3

The lower set of locants is 1, 3 rather than 2, 4. This compound is named as a derivative of alkyne and not alkenes. Also, the terminal ‘e’ in ene is dropped because it comes before ‘y’ of yne.

Daily NEET MCQ- February 25, 2022 - Question 4

How many isomers does C5H11Br have?

Detailed Solution for Daily NEET MCQ- February 25, 2022 - Question 4

It has a total of 8 isomers, four are primary and two each are secondary and tertiary haloalkanes.

Daily NEET MCQ- February 25, 2022 - Question 5

What is the ratio of the speed of infrared and ultraviolet rays in a vacuum?

Detailed Solution for Daily NEET MCQ- February 25, 2022 - Question 5

Ratio = 1 because the speed of an electromagnetic wave in vacuum is independent of its wavelength or frequency. Therefore, the ratio of speed of infrared and ultraviolet rays in a vacuum is one.

Daily NEET MCQ- February 25, 2022 - Question 6

What was the term proposed by Werner for the number of groups bound directly to the metal ion in a coordination complex?

Detailed Solution for Daily NEET MCQ- February 25, 2022 - Question 6

Primary valence of a metal ion is also known as its oxidation number. The secondary valence is equal to coordination number and it is fixed for a metal. Coordination polyhedra is the term for the spatial arrangements of the groups/ions around the metal.

Daily NEET MCQ- February 25, 2022 - Question 7

Plasmids and ________ have the ability to replicate within bacterial cells independent of the control of chromosomal DNA.

Detailed Solution for Daily NEET MCQ- February 25, 2022 - Question 7

Plasmids and bacteriophages can replicate within bacterial cells without the help of chromosomal DNA. Thus they are self-replicating and autonomous in nature. They have their own replication machinery.

Daily NEET MCQ- February 25, 2022 - Question 8

What is the colour of the compound CoCl3.5NH3?

Detailed Solution for Daily NEET MCQ- February 25, 2022 - Question 8

The different compounds of cobalt(III) chloride with ammonia show distinct properties, most notably with respect to colour and conductivity measurements in solution.

Daily NEET MCQ- February 25, 2022 - Question 9

The sequence of DNA from where replication starts is called _______

Detailed Solution for Daily NEET MCQ- February 25, 2022 - Question 9

The sequence of DNA from where the replication starts is called the origin of replication. It is also written as ‘ori’. It is also responsible for controlling the copy number of target DNA. Bacteria usually have only one origin of replication.

Daily NEET MCQ- February 25, 2022 - Question 10

Which of the following technique can be used to detect genetic disorders in humans?

Detailed Solution for Daily NEET MCQ- February 25, 2022 - Question 10

Polymerase Chain Reaction (PCR) technique can be used to detect genetic disorders in humans.

Polymerase Chain Reaction (PCR) is a technique that can amplify a target DNA segment. This amplified segment aids in the detection of various genetic disorder and further studies. It is a revolutionary method developed by Kary Mullis in the 1980s. Polymerase Chain Reaction (PCR) is based on using the ability of DNA polymerase to synthesize new strand of DNA complementary to the offered template strand. Because DNA polymerase can add a nucleotide only onto a preexisting 3'-OH group, it needs a primer to which it can add the first nucleotide.

Hence, the correct option is (A).

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