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 Biology Questions

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Q:

Fill in the blank with the most appropriate option.

 

If the genotype of a plant is ttRr, the phenotype would be ___.

 

A) Dwarf and Wrinkled B) Tall and Wrinkled
C) Dwarf and Round D) Tall and Round
 
Answer & Explanation Answer: C) Dwarf and Round

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Q:

Which of the following groups is/are called phanerogams?

 

I. Thallophyte

II. Bryophyte

III. Pteridophyle

 

A) Only I B) Only II
C) All I, II and II D) No option is correct
 
Answer & Explanation Answer: D) No option is correct

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Q:

_____ is not caused by airborne transmission.

 

A) Tuberculosis B) Chickenpox
C) Measles D) Hepatitis B
 
Answer & Explanation Answer: D) Hepatitis B

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Q:

Along the path of the vas deferens which glands add their secretions in the sperms?

 

I. Prostate

II. Seminal vesicles

III. Scrotum

 

A) Only I and III B) Only I and II
C) Only II and III   D) All I, II and III
 
Answer & Explanation Answer: B) Only I and II

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Q:

Which of the following muscular tissue is multinucleated?

 

A) Smooth muscle B) Cardiac muscle  
C) Skeletal muscle D) Unstriated muscle
 
Answer & Explanation Answer: C) Skeletal muscle

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Q:

The human heart is 

A) Neurogenic heart B) Myogenic heart
C) Pulsating heart D) Ampullary heart
 
Answer & Explanation Answer: B) Myogenic heart

Explanation:

Hearts are of several types. In some invertebrates the heart is simulated by the nervous system to do its work. Such hearts are called Neurogenic hearts. The Human heart is myogenic. i.e, it recieves the stimuli for contraction from the muscular node called sinu-auricular node or pace maker.

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Q:

In most green plants, chloroplasts are

 

A) concentrated in a zone of leaf tissue called the mesophyll B) concentrated in a portion of the leaf called the stroma
C) found throughout the leaf tissue D) concentrated in the stomata
 
Answer & Explanation Answer: A) concentrated in a zone of leaf tissue called the mesophyll

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Q:

Where does glucose breaks down into pyruvate?

 

A) Golgi bodies B) Cytoplasm
C) Chloroplast D) Protoplasm
 
Answer & Explanation Answer: B) Cytoplasm

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