Tag: zoology

Quizzes (289) Questions (5869)

Questions Related to zoology

Multiple choice zoology neural control and coordination parts of the brain brain and its parts brain

Fill in the blank with correct option.
________ gave cognitive dissonance theory.

  1. Festinger

  2. Binet

  3. Heider

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Leon Festinger proposed the theory of cognitive dissonance in 1957, which describes the mental discomfort experienced by a person who holds two or more contradictory beliefs.

Multiple choice zoology neural control and coordination parts of the brain brain and its parts brain

The limbic system is formed by

  1. The hypothalamus ,epithalamus ,amygdala and hippocampus

  2. Hypothalamus ,amygdala and hippocampus

  3. Corpora quadrigemina and hippocampus

  4. Midbrain and hindbrain
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

the limbic system is made up of the amygdala, hippocampus, thalamus, hypothalamus, basal ganglia, and cingulate gyrus.  All the components of the limbic system work together to regulate some of the brain's most important processes.

Multiple choice zoology neural control and coordination parts of the brain brain and its parts brain

Anaesthetics reduce pain by blocking nerve conduction due to

  1. Blocking neurotransmitter receptors
  2. Blocking N$a^+$ channels
  3. Blocking $K^+$ channels

  4. All the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Local anaesthetics work primarily by binding to and blocking voltage-gated sodium channels in nerve cell membranes, which prevents the depolarization required for nerve impulse conduction.

Multiple choice zoology neural control and coordination parts of the brain brain and its parts brain

Which of the following brain structure is not considered to be part of limbic system?

  1. Amygdala

  2. Hippocampus

  3. Corpora quadrigemina

  4. Septal nuclei
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • The limbic system is the portion of the brain that deals with three key functions: emotions, memories, and arousal (or stimulation).
  • The components of the limbic system include Amygdala, Hippocampus, Septal nuclei, thalamus, hypothalamus, basal ganglia.
  • The posterior surface of the adult midbrain is characterized by four elevations collectively called the corpora quadrigemina. It is not a part of the limbic system.
  • Hence the brain structure is not considered to be part of the limbic is Corpora quadrigemina.
  • So, the correct answer is 'Corpora quadrigemina'.
Multiple choice zoology genetics of the future gene therapy application of biology in therapy and vaccine gene cloning

SCID is caused by defective gene coding for enzyme ______________.

  1. Adenosine deaminase

  2. Adenosine transaminase

  3. Adenosine transferase

  4. Guanosine transaminaseGuanosine deaminase
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Adenosine deaminase deficiency SCID, commonly called ADA SCID, is a very rare genetic disorder. It is caused by a mutation in the gene that encodes a protein called adenosine deaminase (ADA). 

Multiple choice zoology genetics of the future gene therapy application of biology in therapy and vaccine gene cloning
Assertion : Genital herpes cannot be cured if recurrent.
Reason : Genital herpes can be inhibited by acyclovir.

  1. Both the Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

  2. Both the Assertion and Reason are true but the Reason is not a correct explanation of the Assertion.

  3. The Assertion is true but the Reason is false.

  4. Both the Assertion and Reason are false.

  5. The Assertion is false but Reason is true.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

An antiviral drug is used to treat genital herpes outbreaks stay symptom-free longer. These drugs can also reduce the severity and duration of symptoms when they do flare up. Drug therapy is not a cure, but it can make living with the condition easier. Because of lack of research about the Herpes virus action mechanism, there is no cure for Herpes but it is inhibited by acyclovir. It is one of the most common sexually transmitted infections. 

Multiple choice zoology genetics of the future gene therapy application of biology in therapy and vaccine gene cloning

Which of these is used as vector for gene therapy in SCID and gene cloning in higher organisms?

  1. Retrovirus

  2. Enterovirus

  3. Arbovirus

  4. Rotavirus

  5. Parvovirus
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Retroviruses are frequently used as vectors in gene therapy, particularly for SCID (Severe Combined Immunodeficiency), because they can integrate their genetic material into the host genome.