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Difine poly blend

Posted by Ratan Priya Priya 7 years, 2 months ago

CBSE > Class 12 > Biology

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MALT stands for?

Posted by Harsh Ratnakar 7 years, 2 months ago

CBSE > Class 12 > Biology

1 answers

Chitra Rawat 7 years, 2 months ago

Mucosal associated lymphoid tissue

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What are pleotropic genes

Posted by Himanshu Baprolia 7 years, 2 months ago

CBSE > Class 12 > Biology

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What is T-helper

Posted by Ankit Sharma 7 years, 2 months ago

CBSE > Class 12 > Biology

1 answers

Tanmay Rastogi 7 years, 2 months ago

T helper are the types of t cells which help b cells to form antibodis

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Gene do not occur in pairs in

Posted by Shashank Singh Raghuvanshi 7 years, 2 months ago

CBSE > Class 12 > Biology

1 answers

Shashank Singh Raghuvanshi 7 years, 2 months ago

Gygote

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Difference between RNA & DNA

Posted by Aditya Raj 7 years, 2 months ago

CBSE > Class 12 > Biology

1 answers

Jain Ali 7 years, 2 months ago

RNA is single stranded as well as less stable and mutate faster 2DNA is double stranded as well as stable and mutate slower and follow the criteria of mendelian trait

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Do eukaryotic cellshave restriction endonucleases? Justify answer

Posted by Bhupesh Aithani 7 years, 2 months ago

CBSE > Class 12 > Biology

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How did Sturtevant explain Gene mapping while working with Morgan?

Posted by Surbhi Manocha 7 years, 2 months ago

CBSE > Class 12 > Biology

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Iam always confused between mitotic and meiotic please clear my doubt

Posted by Apeksha Maheshwari 7 years, 2 months ago

CBSE > Class 12 > Biology

1 answers

Mohit Sepat 7 years, 2 months ago

Meiotic is reductional while mitotic produce identical copy or cell

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What is the blueprint and question marking incbse

Posted by Varsha Nagar 7 years, 2 months ago

CBSE > Class 12 > Biology

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Did restriction exonuclease enzyme cut r-dna

Posted by Tanmay Rastogi 7 years, 2 months ago

CBSE > Class 12 > Biology

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How can be proved that DNA is genetic material????

Posted by Shivendra Pratap Singh 7 years, 2 months ago

CBSE > Class 12 > Biology

1 answers

Shirin Kalam 7 years, 2 months ago

Hershey and Chase experiment

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How can be proved that DNA is genetic material

Posted by Shivendra Pratap Singh 7 years, 2 months ago

CBSE > Class 12 > Biology

1 answers

Nuke 7 years, 2 months ago

It was proved by the experiment of hershy and chase

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Why rose flower do notgive fruit

Posted by Shivam Singh 7 years, 3 months ago

CBSE > Class 12 > Biology

2 answers

Shubhangi Singh 7 years, 2 months ago

Google it...ache se diya hua hai usme i read it after u asked this shivam....???

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Himanshi Monu 7 years, 2 months ago

Because they are flowers

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Explain detritus food chain in detail.

Posted by Mahima Gupta 7 years, 3 months ago

CBSE > Class 12 > Biology

1 answers

Yogita Ingle 7 years, 3 months ago

Saprophytic or Detritus Food chain:

In this food chain, the dead organic matter or organic wastes (metabolic wastes and extrudates) of eco-system go to the micro-organisms and finally to detritus feeding organiss known as detrivore. The energy stored in detritus serves as a source of energy for detrivore. This type of food chain is less efficient as the major portion of energy is lost to the eco-system without being properly used.

Food Chain of Different Eco-Systems:

Grassland eco system: Grass →Grasshopper →Toad→ Snake

Grass→ Rat→ Snake→ Hawk

Forest eco system: Plant→ Deer→ Lion

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what is biomagnification

Posted by Tanmay Rastogi 7 years, 3 months ago

CBSE > Class 12 > Biology

1 answers

Thejaswini Chirnalli Mattad 7 years, 3 months ago

Increased in concentration of pesticide residue in trophic level of food chain

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How microspore tetrad are seperate from male anther?

Posted by Vishal Srivastav 7 years, 3 months ago

CBSE > Class 12 > Biology

1 answers

Avinash Mehra 7 years, 3 months ago

By external things like air wind and water

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Why haemophilia generally observed in human male????????

Posted by Prashant Bhardwaj 7 years, 3 months ago

CBSE > Class 12 > Biology

1 answers

Shubhangi Singh 7 years, 3 months ago

Female have 2 X chromosomes a mutation must be present in both copies of the gene that can cause haemophilia..its a X linked recessive disorder.??

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Flowchart of animal breeding

Posted by Vaibhav Sonker 7 years, 3 months ago

CBSE > Class 12 > Biology

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What is vulva??

Posted by Aryan Rajpoot 7 years, 3 months ago

CBSE > Class 12 > Biology

2 answers

Avinash Mehra 7 years, 3 months ago

Bhai 10 ki bio padi thi ki nhi

1Thank You

Shubhangi Singh 7 years, 3 months ago

The female external genital..

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Gud night to all padakoo insaan.I hope raat mein kisi ko padai ke drawaane sapane na aaye jaise mujhe aaye the exam mein fail hone ke.

Posted by Hy Shona 7 years, 3 months ago

CBSE > Class 12 > Biology

3 answers

Himanshi Monu 7 years, 3 months ago

Same here ji

1Thank You

Himanshi Monu 7 years, 3 months ago

???????????

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Himanshi Monu 7 years, 3 months ago

???????????????????????????????????

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What is main objective of animal husbandry

Posted by Kuldeep Bhati 7 years, 3 months ago

CBSE > Class 12 > Biology

1 answers

Himanshi Monu 7 years, 3 months ago

Main objective are breeding,weeding,feeding,heeding

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Why do not you observe some flower of the following plant cucumber,peepal,papaya etc Try to find out wgich visit them and whether they could be pollinators?

Posted by Manish Kumar 7 years, 3 months ago

CBSE > Class 12 > Biology

2 answers

Aryan Rajpoot 7 years, 3 months ago

Who told u that u cannot observe the flowers of cucumber,peepal, papaya, etc I have observed them all and majority of these are pollinated by insects

1Thank You

Mohit Sepat 7 years, 3 months ago

Because some of their plant are male

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What are alpha interferons ?

Posted by Aniket Upadhyay 7 years, 3 months ago

CBSE > Class 12 > Biology

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Mention the event of meiosis occur in the tertiary follicle in human ovary

Posted by Shiv Malwal 7 years, 3 months ago

CBSE > Class 12 > Biology

1 answers

Aniket Upadhyay 7 years, 3 months ago

Tartiary follicle after meiosis results in the formation of secondary oocytes and first polar body

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What are interferons ?? Mention their role

Posted by Shiv Malwal 7 years, 3 months ago

CBSE > Class 12 > Biology

2 answers

Aniket Upadhyay 7 years, 3 months ago

Interferons are the proteins secreted by the virus infected cells which protects other cells and this provide innate immunity in the form of cytokine barriers

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Shubhangi Singh 7 years, 3 months ago

Its a cytokine barrier comes under innate immunity. Its a protein which protect non infected cell from further infection

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Explain the base complentarity rules ?? Name the scientist who framed this rule ??

Posted by Shiv Malwal 7 years, 3 months ago

CBSE > Class 12 > Biology

1 answers

Aniket Upadhyay 7 years, 3 months ago

It states that a purine always pairs up with pyridine in a complementary way by changing the orientation of the chain. Wilkins and Franklin gave this rule .. But am not sure ????

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What is cumulus oophorus?

Posted by Shubhangi Singh 7 years, 3 months ago

CBSE > Class 12 > Biology