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Q:

The__________ are the primary female sex organs that produce the female gamete (ovum) and several steroid hormones (ovarian hormones).

A) Cervix B) Uterus
C) Ovaries D) Clitoris
 
Answer & Explanation Answer: C) Ovaries

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Q:

All of the following are true about color blindness except

A) it seems to be more common in women than men. B) people are either unable to distinguish two or more hues from each other or unable to see hue at all.
C) color blindness has no easy method of detection. D) it involves missing or damaged cones.
 
Answer & Explanation Answer: A) it seems to be more common in women than men.

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Q:

Which of the following statements about the cytoskeleton is FALSE?

A) The bacterial cytoskeleton is not required for cell division and DNA segregation B) The cytoskeleton is made up of two types of protein filament
C) Protein monomers that are held together with covalent bonds to form cytoskeletal filaments D) The cytoskeleton of a cell can change in response to the environment
 
Answer & Explanation Answer: C) Protein monomers that are held together with covalent bonds to form cytoskeletal filaments

Explanation:

Protein monomers that are held together with covalent bonds to form cytoskeletal filaments is the false statement about the cytoskeleton in the given options.

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Q:

What is the name of the hormone produced by thymus gland?

A) Thyroxine B) Auxins
C) Cytokinins D) Thymosin
 
Answer & Explanation Answer: D) Thymosin

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Q:

Bryophytes are also called ____________ of the plant kingdom.

A) Mammals B) Amphibians
C) Reptiles D) Insecta
 
Answer & Explanation Answer: B) Amphibians

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Q:

Which of the following is not true about Angiosperms?

A) Dominant phase is gametophytes B) Vascular bundles are present
C) Spores are heterospores D) Seeds are covered
 
Answer & Explanation Answer: A) Dominant phase is gametophytes

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Q:

Which one of the following statements regarding haemoglobin is correct?

A) Haemoglobin present in RBC can carry only oxygen but not carbon dioxide B) Haemoglobin of RBC can carry both oxygen and carbon dioxide
C) Haemoglobin of RBC can carry only carbon dioxide D) Haemoglobin is only used for blood clotting and not for carrying gases.
 
Answer & Explanation Answer: B) Haemoglobin of RBC can carry both oxygen and carbon dioxide

Explanation:

During respiration, about 97% of oxygen is transported by Red Blood Cells in blood and the remaining 3% gets dissolved in the plasma.Around 20-25% of carbon dioxide is carried by haemoglobin as carbamino-haemoglobin.

Oxygen enters the blood from the lungs and carbon dioxide is expelled out of the blood into the lungs. The blood serves to transport both gases. Oxygen is carried to the cells. Carbon dioxide is carried away from the cells.

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Q:

Which blood group is universal acceptor?

A) O+ B) O–
C) AB– D) AB+
 
Answer & Explanation Answer: D) AB+

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