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 Biology Questions

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Q:

Infection of salivary glands by a virus leads to 

A) tetanus B) mumps
C) pyorrhoea D) ulcers
 
Answer & Explanation Answer: B) mumps

Explanation:

Mumps: This is a swelling caused by inflammation of parotid glands placed in front of our ear region. The Inflammation is caused by a virus.

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Q:

Which is not a basic function of a cell?

A) stopping homeostasis from happening B) obtaining and storing energy
C) removing waste D) transferring genetic information
 
Answer & Explanation Answer: A) stopping homeostasis from happening

Explanation:
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Q:

The rate of respiration per minute in a new born baby

A) 18 times B) 32 times
C) 26 times D) 16 times
 
Answer & Explanation Answer: B) 32 times

Explanation:
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Q:

What sugar is found in DNA?

A) Ribose B) Deoxyribose
C) Pentose D) Sucrose
 
Answer & Explanation Answer: B) Deoxyribose

Explanation:

DNA - Deoxyribonucleic acid is a type of nucleic acid. The sugar contained in it is called Deoxyribose.

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Q:

Important component that helps in clotting of the blood is called ____.

A) Haemoglobin B) Platelets
C) Serum D) Plasma
 
Answer & Explanation Answer: B) Platelets

Explanation:

Blood Platelets are the components of the blood that are helpful in clotting of the blood.

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Q:

Which of the following is an example of polygenic inheritance?

A) Skin pigmentation in humans B) Huntingtonʹs disease in humans
C) White and purple flower color in peas D) The ABO blood groups in humans
 
Answer & Explanation Answer: A) Skin pigmentation in humans

Explanation:

Polygenic inheritance involves the determination of a particular phenotypic characteristic by many genes, called polygenes(group of genes influencing a quantitative characteristic), each having a small effect individually.

Height and skin colour in humans are examples of Polygenic characters.

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Q:

The blind spot of the eye is where the optic nerve leaves the eyeball.

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

Explanation:

Everyone of us have a blind spot which is a small portion within the visual field of every eye where the optic nerve and blood vessels leave the eyeball. Optic nerve is connected to brain ehich carries images of what we see.


the_blind_spot_of_the_eye_is_where1536397433.jpg image

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Q:

ACTH stimulates the adrenal cortex to release corticosteroid hormones.

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

Explanation:

ACTH means Adrenal Corticotrophic Hormone.


CRH - Corticotrophin Releasing Hormone produced by hypothalamus stimulates the pituitary gland to release the ACTH which in turn produces corticosteroid hormones by adrenal glands.


 


Hence, the given statement is TRUE.

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