Biology Questions

Q:

Vitamin present in guava fruits

A) Vitamin - A B) Vitamin - B
C) Vitamin - C D) Vitamin - D
 
Answer & Explanation Answer: C) Vitamin - C

Explanation:
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Q:

Amarbel is an example of

A) parasite B) host
C) autotroph D) saprotroph
 
Answer & Explanation Answer: A) parasite

Explanation:

Amarbel is an example of parasite.

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Q:

Which bacterium is used to turn milk to curd?

 

A) Streptomyces B) Vibrio
C) Lactobacillus D) Spirilla
 
Answer & Explanation Answer: C) Lactobacillus

Explanation:
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Q:

Which best describes genetic mutations?

A) Genetic mutations that cause diseases are always passed on to offspring. B) Some inherited genetic mutations can be good for the offspring.
C) Different genetic mutations cause few forms of cancer. D) Somatic mutations can be inherited from parents or acquired during life.
 
Answer & Explanation Answer: B) Some inherited genetic mutations can be good for the offspring.

Explanation:

Mutations are accidents in the copying of DNA. A genetic mutation is a random change in the DNA that is passed on further generations of cells and or organisms. 

 

Genetic mutations are accidental changes in the DNA in the germ cells or early in the formation of the embryo. These changes if they are in the germ cell will be passed on to other organisms formed by sexual reproduction or asexual reproduction. An example would be the golden delicious apple. A lost of genetic information due to a mutation resulted in a different color of fruit.

 

Genetic mutations that cause diseases are not always passed on to offspring. 

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Q:

The valve present between left auricle and left ventricle is

A) Mitral B) Tricuspid
C) Semilunar D) Pulmonary
 
Answer & Explanation Answer: A) Mitral

Explanation:
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Q:

Match the following.

 

 

A) I – 2, II – 3, III – 1   B) I – 1, II – 3, III – 2  
C) I – 2, II – 1, III – 3   D) I – 3, II – 2, III – 1
 
Answer & Explanation Answer: D) I – 3, II – 2, III – 1

Explanation:
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Q:

Study Of Cells Is Called

A) Cellogysm B) Cell biology
C) Cell Organism D) None
 
Answer & Explanation Answer: B) Cell biology

Explanation:

The branch of biology that studies the different structures and functions of the cell is called Cell Biology or Cytology.

 

 A cell is the smallest unit of life that can replicate independently, and cells are often called the "building blocks of life"

  

Cell Biology deals with :

        • Life cycle 
        • Structure and organisation of cell organelles and their physiological properties. 
        • Metabolic processes 
        • Interactions with their environment 
        • Signalling pathways.
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Q:

The Vitamin that is destroyed on heating

A) E B) C
C) A D) B
 
Answer & Explanation Answer: B) C

Explanation:
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