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.

General

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  • Vikas Kumar

    Nov 23rd, 2019

At night, if a torch is pointed at a cat’s eyes they reflect light back to the source. Why does this phenomenon occur? a. To scare away predators b. To attract mates c. To increase sensitivity to low light d. It is just a side-effect of photoreceptor function

Model Answer:

C

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

Population Ecology

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  • Vikas Kumar

    Nov 19th, 2019

Predator-Prey relationship

Model Answer:

C

Human Physiology

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  • Vikas Kumar

    Nov 19th, 2019

Which of the following factors is responsible for the formation of concentrated urine? (1) Low levels of antidiuretic hormone. (2) Maintaining hyperosmolarity towards inner medullary interstitium in the kidneys. (3) Secretion of erythropoietin by juxtaglomerular complex. (4) Hydrostatic pressure during glomerular filtration

Model Answer:

Maintaining hyperosmolarity towards inner medullary interstitium in the kidneys. Which involves Loop of Henele and vasa recta.

Ion gated channels

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  • Vikas Kumar

    Nov 19th, 2019

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

Visceral arches

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  • Vikas Kumar

    Jan 16th, 2018

What is Splanchnocranium? 1. Area of skull including sensory capsules 2. Are of skull including jaws derived from mandibular arch 3. Area of skull derived from hyoid arch 4. Area of skull including brain box and jaws
  • Sharadindu Biswas May 12th, 2019

    3

Fatty acid oxidation

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  • Vikas Kumar

    Oct 9th, 2017

For the activation process of beta oxidation of fatty acid, how many ATP is required? a. 1 b. 2 c. 2.5 d. 1.5
  • Anik Nayek Jun 2nd, 2018

    2

    Sharadindu Biswas Jun 5th, 2018

    B

    Mainak Majumder Jun 6th, 2018

    B

Model Answer:

b. 2ATP

Synanthropy

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  • Vikas Kumar

    Oct 6th, 2017

"Synanthropic" is the term used for:

a) enriching of local flora and fauna with species from other geographical territories;

b) domestic (domesticised) animal;

c) organisms transferred by man from original territories;

d) animals and plants living in close relationship with man.

  • Mainak Majumder Jun 6th, 2018

    D

Model Answer:

d. animals and plants living in close relationship with man

"Synanthrope" is generally an undomesticated organism and especially an animal (such as a mouse, pigeon, or raccoon) that lives in close association with people and benefits from their surroundings and activities