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Q:

A tetrad is made up of

A) four homologous pairs of chromosomes B) two homologous chromosomes, each consisting of two chromatids
C) four non-homologous chromosomes D) two homologous pairs of chromosomes
 
Answer & Explanation Answer: B) two homologous chromosomes, each consisting of two chromatids

Explanation:

A tetrad 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:

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:

Yeast used in making bread is a

A) Fungus B) Bacteria
C) Seed D) Plant
 
Answer & Explanation Answer: A) Fungus

Explanation:

Yeast used in making bread is a Fungus.

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Q:

Blood pressure is measured with

A) Thermometer B) Barometer
C) Sphygmomanometer D) Lactometer
 
Answer & Explanation Answer: C) Sphygmomanometer

Explanation:
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Q:

As alcohol use continues, the voluntary motor system becomes impaired.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:
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Subject: Biology
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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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Q:

The grouping of blood is based on substances called

A) antibodies B) antigens
C) antitoxin D) enzymes
 
Answer & Explanation Answer: B) antigens

Explanation:

The red blood corpuscles or Erythrocytes usually carry antigens and there are two types of antigens. The A group persons have antigen A in their red corpuscles and the B group have antigen A in their red corpuscles.The AB group persons have both antigen A and antigen B in their erythrocytes.The 'O'group persons have no antigens in their red corpuscles.

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Q:

Islets of Langerhans are present in

A) Kidney B) Liver
C) Pancreas D) Trachea
 
Answer & Explanation Answer: C) Pancreas

Explanation:
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