Biology Questions

Q:

Which best describes a tetrad?

A) A diploid cell B) Two gametes
C) Four chromatids D) A haploid cell
 
Answer & Explanation Answer: C) Four chromatids

Explanation:

A tetrad is best described by Four chromatids. It is formed from two homologous chromosomes, each consisting of two chromatids in the first stage of meiosis called prophase1.

 

A_tetrad_is_made_up_of1562827273.jpg image

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Q:

Which cells are destroyed in AIDS

A) Monocytes B) Neutrophils
C) Lymphocytes D) R.B.C.
 
Answer & Explanation Answer: C) Lymphocytes

Explanation:
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Q:

In a bisexual flower if androcium and gynoecium mature at different time the phenomeon is known as _________

A) Dichogamy B) Herpogamy
C) Haterogamy monogamy D) None of these
 
Answer & Explanation Answer: A) Dichogamy

Explanation:
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Q:

Important objective of biotechnology in agriculture section is _________

A) % produce best resistant varieties of plant B) % increase the nitrogen content
C) % decrease the seed number D) % increase the plant weight
 
Answer & Explanation Answer: A) % produce best resistant varieties of plant

Explanation:
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Q:

Both food and air travel through the

A) pharynx B) trachea
C) larynx D) alveolus
 
Answer & Explanation Answer: A) pharynx

Explanation:

The pharynx is a passageway shared by both food and air.

 

Both_food_and_air_travel_through_the1562568925.png image

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Q:

Which letter indicates systolic pressure?

A) i B) b
C) c D) a
 
Answer & Explanation Answer: D) a

Explanation:

a -  at the peak of changes in blood pressure indicates the systiolic pressure.

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Q:

Localized area of pus formation in the lungs is

A) Pulmonary embolism B) Pulmonary abscess
C) Pleurisy D) Pulmonary edema
 
Answer & Explanation Answer: B) Pulmonary abscess

Explanation:

Pulmonary abscess is a type of liquefactive necrosis of the lung tissue. 

 

 localized_area_of_pus_formation_in_the_lungs1537941339.jpg image

 

Hence, Localized area of pus formation in the lungs is Pulmonary abscess.

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Q:

Who is known as father of medicine

A) Aristotle B) Theophrastus
C) Hippocrates D) Edward Jenner
 
Answer & Explanation Answer: C) Hippocrates

Explanation:
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