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 Biology Questions

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Q:

Which is a homologous chromosome pair?

A) Tetrad B) Gamate
C) Chromatid D) Zygote
 
Answer & Explanation Answer: A) Tetrad

Explanation:

Tetrad is a homologous chromosome pair in the given options. A homologous chromosome pair is a pair of chromosomes one from father and one from mother that has same gene sequence after the process of meiosis.

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Q:

Which of the following is not connective tissue?

A) Bone B) Cartilage
C) Blood D) Skeletal muscle
 
Answer & Explanation Answer: D) Skeletal muscle

Explanation:
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Q:

All of the following are polysaccharides except

A) Chitin B) Lactose
C) Glycogen D) Cellulose
 
Answer & Explanation Answer: B) Lactose

Explanation:
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Q:

Adamsia (Sea anemone), Pennatula (Sea-pen) are examples of which Phylum?

A) Coelenterata B) Aschelminthes
C) Annelida D) Arthropoda
 
Answer & Explanation Answer: A) Coelenterata

Explanation:
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Q:

The size of the pupil is controlled by the

A) Retina B) Iris
C) Cornea D) Lens
 
Answer & Explanation Answer: B) Iris

Explanation:

The size of the pupil is controlled by the Iris when light enters the eye.

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Q:

Where does digestion of protein begin?

A) Mouth B) Pharynx
C) Stomach D) Liver
 
Answer & Explanation Answer: C) Stomach

Explanation:

Three main enzymes, pepsin secreted by the stomach and trypsin and chymotrypsin secreted by the pancreas, break down food proteins into polypeptides that are then broken down by various exopeptidases and dipeptidases into amino acids.

 

Hence, digestion of protein begin in stomach.

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Q:

Gametes are produced by the process of

A) Mitosis B) Meiosis
C) Both A & B D) None of the above
 
Answer & Explanation Answer: B) Meiosis

Explanation:

A gametes are haploid cells as they have only one set of chromosomes. Meiosis is a process of cellular reproduction in which both male and female gametes are formed. During meiosis, the DNA is only replicated or copied one time.

Gametes_are_produced_by_the_process_of1560944987.png image

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Q:

The pale yellow colour of urine is due to the presence of which pigment?

A) Urochrome B) Urophyll
C) Chlorophyll D) Chloroplast
 
Answer & Explanation Answer: A) Urochrome

Explanation:
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