Chromosome based question

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  • Vikas Kumar

    Dec 2nd, 2019

The shorter and longer arms of a submetacentric chromosome are referred to as :- (1) s-arm and l-arm respectively (2) p-arm and q-arm respectively (3) q-arm and p-arm respectively (4) m-arm and n-arm respectively

Model Answer:

2. p and q are shorter and longer arms of a sub-metacentric chromosome. Submetacentric chromosomes have the centromere slightly offset from the center leading to a slight asymmetry in the length of the two sections. Human chromosomes 4 through 12 are submetacentric in nature.

Non chordata related problem

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  • Vikas Kumar

    Nov 27th, 2019

Consider following features: (a) Organ system level of organisation (b) Bilateral symmetry (c) True coelomates with segmentation of body Select the correct option of animal groups which possess all the above characteristics. (1) Annelida, Arthropoda and Chordata (2) Annelida, Arthropoda and Mollusca (3) Arthropoda , Mollusca and Chordata (4) Annelida, Mollusca and Chordata

Model Answer:

1. True segmentation is seen in the Phylum Annelida and Chordata. Arthropods too show segmentation restricted to upper side of their body. In chordates, segmentation is pertaining to muscular part as it shows Circular & longitudinal muscle perpetuates throughout the body.

Cell biology problem

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  • Vikas Kumar

    Nov 22nd, 2019

Which of the following statements is not correct? (1) Lysosomes have numerous hydrolytic enzymes. (2) The hydrolytic enzymes of lysosomes are active under acidic pH. (3) Lysosomes are membrane bound structures. (4) Lysosomes are formed by the process of packaging in the endoplasmic reticulum.

Model Answer:

4. Lysosomes are formed by the process of packaging in the ER

Chalina

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  • Vikas Kumar

    Nov 21st, 2019

Which poriferan is commonly known as "Dead man's finger" Or "Mermaid's gloves" A. Hyalonema B. Chalina C. Clion D. Oscarella

Model Answer:

B. Chalina It resembles the fingers of a hand which has many oscula. Chalina belongs to the class of Demospongia and order Monaxonida

Ion gated channels

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  • Vikas Kumar

    Nov 19th, 2019

https://m.facebook.com/story.php?story_fbid=147429936615712&id=111678116857561

Do You also have this Fear? :)

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  • Abhishek Kumar

    Aug 19th, 2018

Interesting Facts 2

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  • Abhishek Kumar

    Aug 19th, 2018

  • Sharadindu Biswas Aug 19th, 2018

    B

Science Quiz 1

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  • Abhishek Kumar

    Jun 15th, 2018

  • Souradip Guha Jun 16th, 2018

    (B)brain

    Manidipa Chowdhury Jun 30th, 2018

    (C )Heart

Interesting Facts 1

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  • Abhishek Kumar

    May 20th, 2018

Science Quiz 4

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  • Abhishek Kumar

    May 17th, 2018