Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice biology fruit and seed morphology of the fruit fruit plants: structure and function

The fruit commonly occurring in the members of family Solanaceae is

  1. Lomentum

  2. Berry

  3. Cypsela

  4. Drupe
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

It is a large family, commonly called the ‘potato family’. It is widely

distributed in tropics, subtropics and even temperate zones.
The fruit of Solanaceae is berry or capsule.
So, the correct answer is 'Berry'.

Multiple choice biology fruit and seed morphology of the fruit fruit plants: structure and function

Pepo is a false fruit

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Fruit is a seed-bearing structure in flowering plants (also known as angiosperms) formed from the ovary after flowering. Fruits are the means by which angiosperms disseminate seeds. Pepo is a fleshy, several-seeded fruit that has developed from one flower having a single ovary divided into several carpels, which develops a firm or tough rind as it matures. This type of fruit is found in plants of the family Cucurbitaceae.

So the given statement is false.

Multiple choice biology fruit and seed morphology of the fruit fruit plants: structure and function

Choose the correct answers from the alternatives given.
The structure that forms most of the flesh of an apple is the

  1. pistil

  2. receptacle

  3. petal

  4. stamen
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
An Apple is called a false fruit as it is developed from the thalamus, not from the ovary. Thus apple flesh is not derived from the ovary instead it is derived from the receptacle.
So, the correct answer is receptacle.


Multiple choice biology immune system vaccination biotechnology commercial applications of biotechnology

Vaccination against smallpox means the introduction into our body of

  1. Leucocytes obtained from an animal

  2. Antibodies produced in other animals

  3. Antibodies

  4. Actual weakened germs or attenuated smallpox virus
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Smallpox vaccine is produced from the artificially attenuated smallpox virus. The administration of this vaccine ios called as vaccination against smallpox. As on administration of this vaccine, our body develops immunity against the particular virus.

Thus, the correct answer is option D.

Multiple choice biology immune system vaccination biotechnology commercial applications of biotechnology

The most modern technique of vaccine preparation is

  1. Extraction of antigens from pathogens

  2. Multiplication of antigens through DNA technique

  3. Weakening of pathogen through chemical treatment

  4. Attenuation of pathogen through heat
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Recombinant DNA technology allows for the production of specific antigens without using the whole pathogen, which is the most modern and safe technique.

Multiple choice biology immune system vaccination biotechnology commercial applications of biotechnology

Hepatitis B vaccine is

  1. Combined vaccine

  2. Recombinant antigen vaccine

  3. Polysaccharide vaccine

  4. DNA vaccine
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Hepatitis B vaccine is a vaccine that prevents hepatitis B.
  •  The first dose is recommended within 24 hours of birth with either two or three more doses given after that. 
  • The vaccine is given by injection into a muscle. Serious side effects of the hepatitis B vaccine are very uncommon. Pain may occur at the site of injection.
  •  The current vaccines are produced with recombinant DNA techniques.
  • Hence, the Hepatitis B vaccine is Recombinant antigen vaccine.
  •   So, the correct answer is 'Recombinant antigen vaccine'.
Multiple choice biology human body respiration in humans mechanism of respiration in animals human lungs

Pneumoconiosis is a type of

  1. Emphysema

  2. Occupational renal disease

  3. Occupational respiratory disease

  4. Coronary artery disease
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • Pneumoconiosis is a disease of the lungs due to inhalation of dust, characterized by inflammation, coughing, and fibrosis. 
  • Pneumoconiosis is usually considered an occupational respiratory disease, and includes asbestosis, silicosis and coal workers' pneumoconiosis (CWP), also known as "Black Lung Disease."

So, the correct option is 'Occupational respiratory disease'.

Multiple choice biology human body respiration in humans mechanism of respiration in animals human lungs

Asbestosis increases the risk of developing all of the following except

  1. Carcinoma of the lungs

  2. Mesotheliomas

  3. Bronchiectasis

  4. Tuberculosis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Asbestosis is a known risk factor for lung carcinoma and mesothelioma. Tuberculosis is an infectious disease caused by bacteria, not a direct consequence of asbestos fiber inhalation.