CBSE > Class 12 > Biology | CBSE Board | Homework Help

The main function of a properly designed bioreactor is to provide a controlled environment to achieve optimal growth and/or product formation in the particular cell system employed.

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What is restrictions enzymes?

Posted by A Jaiswal 7 years ago

CBSE > Class 12 > Biology

1 answers

Sangeeta Nara 7 years ago

They r molecular scissors which cut the DNA

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What is IUCN Red data list?

Posted by A Jaiswal 7 years ago

CBSE > Class 12 > Biology

2 answers

A Jaiswal 7 years ago

And IUCN.?

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Maniska Das 7 years ago

List of Threatened Species

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What is Micropropagation ?

Posted by Arti Vishwakarma 7 years ago

CBSE > Class 12 > Biology

2 answers

Arti Vishwakarma 7 years ago

Right !!!

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A Jaiswal 7 years ago

It means growing of plants by the tissue culture.... ☺

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Anyone plz expand pBR322 used in biotechnology?

Posted by A Jaiswal 7 years ago

CBSE > Class 12 > Biology

1 answers

Sangeeta Nara 7 years ago

P stands for plasmid BR for Bolivar and Rodriguez

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Define microsporogenesis

Posted by Nishant Kumar 7 years ago

CBSE > Class 12 > Biology

1 answers

Sangeeta Nara 7 years ago

Formation of microspore from pollen mother cell through meiosis .

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What do you mean by standing crop and biomass? Can you explain briefly about them .

Posted by Hemani Kamboj 7 years ago

CBSE > Class 12 > Biology

1 answers

Gaurav Seth 7 years ago

Standing crop- The mass of living material that each trophic level has at a particular time is called as the standing crop.

Biomass. Biomass is biological material derived from living, or recently living organisms. It is the mass of living organisms. The biomass of a species is expressed in terms of fresh or dry weight.

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What is leaf and its part

Posted by Satwik Gautam 7 years ago

CBSE > Class 12 > Biology

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What are the disadvantages of Genetically modified plants?

Posted by A Jaiswal 7 years ago

CBSE > Class 12 > Biology

2 answers

A Jaiswal 7 years ago

Hmm..... ?I got that.......

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Sangeeta Nara 7 years ago

Gene pollution i.e new genes r produce which r harmful for plants

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What is silenting of RNA?

Posted by A Jaiswal 7 years ago

CBSE > Class 12 > Biology

4 answers

A Jaiswal 7 years ago

Chalo thik h........ ?Aa Gya mjhe samajh me.....☺

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Sangeeta Nara 7 years ago

Silencing of RNA ya isko hm RNAi bhi bol skte h ...it is a mechanism by which silencing of mRNA of nematode done for the safety of tobacco plant . In this transposons produce sense and anti-sense RNA which stop translation of mRNA

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A Jaiswal 7 years ago

RNA hi h paper me.....

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Sangeeta Nara 7 years ago

Silencing of RNA ya phir mRNA ??

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What is interferons?

Posted by A Jaiswal 7 years ago

CBSE > Class 12 > Biology

3 answers

Sangeeta Nara 7 years ago

Protein released by infected cell which stop further virus replication

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A Jaiswal 7 years ago

Confirm btao.......☺

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Sangeeta Nara 7 years ago

Protein released by infected cell from which the nrml cell stay unaffected from infection........ May be yhi h

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What is disadvantage of GE plants?

Posted by A Jaiswal 7 years ago

CBSE > Class 12 > Biology

1 answers

Sangeeta Nara 7 years ago

Gene pollution in which new gene are produce which r harmful for plants

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Anyone need help in biology then ask.....!?

Posted by A Jaiswal 7 years ago

CBSE > Class 12 > Biology

2 answers

Kalas Sahu 7 years ago

How to score 55+marks in biology

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Kalas Sahu 7 years ago

Please help me

1Thank You

ANSWER

Which one of the two sub- units of ribosome encounter's an mRNA ?

Posted by Arti Vishwakarma 7 years ago

CBSE > Class 12 > Biology

1 answers

Priya Patel 7 years ago

small sub unit of ribosomes

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Most of living organism cannot survive at high temperature above 45 c.how are some microbes able to live in habitats with temprrature exceeding 100 c?

Posted by Sriram Nivas 7 years ago

CBSE > Class 12 > Biology

3 answers

A Jaiswal 7 years ago

Because they adopt them selves according to the environment.........☺

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Priya Patel 7 years ago

it is acclimatisation by virtue of it organism changes themselves at will, bacteria like archebacteria having capacity to survive even at100 c because they possess a three layerd thick, branched lopopolysaccharide coating..

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Ilu Yadav 7 years ago

Bcoz they are thermodynamic

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Give an example of a codon having dual function .

Posted by Arti Vishwakarma 7 years ago

CBSE > Class 12 > Biology

4 answers

A Jaiswal 7 years ago

Yes.... Act as initiator..... ☺

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Isha Ahuja 7 years ago

It's AUG.....it act as Intiator.....and also code for methionine

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Arti Vishwakarma 7 years ago

And it's also acts as ......... ?

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A Jaiswal 7 years ago

I think ? I condns of amino acids......

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What is the weightage of each lesson in biology

Posted by Yokkesh Saravanan 7 years ago

CBSE > Class 12 > Biology

2 answers

Kalas Sahu 7 years ago

Please follow xam idea

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A Jaiswal 7 years ago

Bro, you can check it from any reference book Of biology other than ncert ........☺

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anyone need help in biology then ask.... ?

Posted by A Jaiswal 7 years ago

CBSE > Class 12 > Biology

4 answers

A Jaiswal 7 years ago

Christin bro...... Important topics of chapter 5 = Law of independent assortment, Genetic disorders, Monohybrid and Diahybrid crosses ☺

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A Jaiswal 7 years ago

Bhai I m unable to understand your question....... But I'm trying to get that answer Ohk ☺

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Christin Mathew 7 years ago

Could you please tell important points in chapter 5

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Christin Mathew 7 years ago

Name the phenomenon of developing orange embryo

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Four advanced ex situ method to conserve threatened biodiversity

Posted by Supriya Gurung 7 years ago

CBSE > Class 12 > Biology

4 answers

Supriya Gurung 7 years ago

Thnk u

0Thank You

A Jaiswal 7 years ago

These 3 are examples of Cryopreservation ☺

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Sangeeta Nara 7 years ago

1.Offsite collection i.e collection of wild and domesticated species 2.Gene/seed banks 3.Tissue culture 4/Cryopreservation

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A Jaiswal 7 years ago

Cryopreservation technique is the best and advanced method ☺

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What is sexular part

Posted by Kajal Sharma 7 years ago

CBSE > Class 12 > Biology

0 answers

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What is miller experiment

Posted by Arooba Shahnawaz 7 years ago

CBSE > Class 12 > Biology

0 answers

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Why is it difficult to get rid of water hyacinth from a water body? Name a biotic and abiotic component of the ecosystem that gets affected by its spread in the water body?

Posted by Bhavesh Yadav 7 years ago

CBSE > Class 12 > Biology

4 answers

Priya Patel 7 years ago

water hyacinth is also called problematic weed, that caue havac, it has tendency to spread in shory interval of time, it is similar to parthenium.

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A Jaiswal 7 years ago

Yeah ✌

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Sangeeta Nara 7 years ago

Becoz it spread rapidly in short period of tym Biotic=aquatic organism Abiotic =water

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Pranjal Bagait 7 years ago

Biotic~aquatic life like fishes Abiotic~water

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What is elution?

Posted by Shreya Sharma 7 years ago

CBSE > Class 12 > Biology

2 answers

A Jaiswal 7 years ago

✌ yeah

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Sangeeta Nara 7 years ago

The process of extracting DNA bands from agarose gel is called elution

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Anyone need help in biology then ask.......!

Posted by A Jaiswal 7 years ago

CBSE > Class 12 > Biology

2 answers

A Jaiswal 7 years ago

Agar tmne ncert biology puri pd Li h to...sample papers kro ... Agar ni kra h to ncert question kro ☺

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Sangeeta Nara 7 years ago

Abhi ncert k ques kre ya direct sample paper ?

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Info on rice genome project

Posted by Ashu Chandurkar 7 years ago

CBSE > Class 12 > Biology

2 answers

Ashu Chandurkar 7 years ago

Yes

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A Jaiswal 7 years ago

Are you cbse student........?

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ANSWER

Explai E coli operin?

Posted by Lavanya Gs Shivanna 7 years ago

CBSE > Class 12 > Biology

2 answers

A Jaiswal 7 years ago

I think Yha sirf short me answer Milega .........explanation ke liye check out your book ☺

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Sangeeta Nara 7 years ago

Watch keep educating yourself video on you tube for this ?

1Thank You

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What if thermal precipitator not get start on thermal power plant

Posted by Kunal Nawariya 7 years ago

CBSE > Class 12 > Biology

0 answers

ANSWER

Kya spleen left shoulder ke pas present hai Kyoki hamare teacher ne ye likhava rakha h Or mere hisab se spleen stomach ke pass h✌✌

Posted by Saveksha Kadian 7 years ago

CBSE > Class 12 > Biology

2 answers

Saveksha Kadian 6 years, 7 months ago

I know the spleen location but our teacher wrote that near the left shoulder so l just only conferm........

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▪▪Amrit▪▪ ❤ 7 years ago

I Think Spleen Liver Ke Pass Hota Hai See Diagrams Of 11th Huan Physiology

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