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Are methods of filtration of water a part of class 12 bio

Posted by Gagan Sandhu 8 years, 1 month ago

CBSE > Class 12 > Biology

0 answers

ANSWER

Why is RAMSAR?

Posted by Reema Dey 8 years, 1 month ago

CBSE > Class 12 > Biology

0 answers

ANSWER

Innate immunity

Posted by Saksham Tiwari 8 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Gopika Gaur 8 years, 1 month ago

Its a non specific type of defense present at time of birth

ANSWER

During oogenesis meiosis takes place or mitosis??

Posted by Rida Khan 8 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Gopika Gaur 8 years, 1 month ago

Step1: oogonia form primary oocyte (by mitosis ) Step2: primary oocyte divide to form secondary oocyte and one polar body at puberty (by 1st meiotic division) Step3: secondary oocyte form new membrane zona pellucida and when this layer rupture ovum is released ( ovulation) Step4: if ovum is fertilised then 2nd meiotic division takes place ( meiosis 1 happened already in step2) if not fertilised then endometrium shed off.

ANSWER

What is coitus

Posted by Gurmeet Singh 8 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Anushka Tripathi 8 years, 1 month ago

Mating of female nd male for reproduction

ANSWER

transcription?

Posted by Karma Damz 8 years, 1 month ago

CBSE > Class 12 > Biology

2 answers

Sakshi Rai 8 years, 1 month ago

Dna----------mrna

Rida Khan 8 years, 1 month ago

Conversion of DNA into RNA

ANSWER

Why do stem cells are produced in male body at the time of spermatogenesis. State function.

Posted by Anjali Premani 8 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Anjali Premani 8 years, 1 month ago

Plz koi to batao

ANSWER

How many types of sperms are there

Posted by Sahil Eshan 8 years, 1 month ago

CBSE > Class 12 > Biology

4 answers

Muskaan Sharma 8 years, 1 month ago

Ooo.....aisa Sorry mere mind se bilkul hi nikl gyi thi ye baat

Rishabh Nautiyal 8 years, 1 month ago

There r two types of sperms. For In simple words male and female

Anjali Premani 8 years, 1 month ago

Two types of sperms are there..... one which carry X *** chromosome and the second which carry Y chromosome

Muskaan Sharma 8 years, 1 month ago

Bhai hmne to aisa kuchh n pdha... tu hi bta de

ANSWER

Cause of global warming

Posted by Sanjana Mukati 8 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Vivek Saini 8 years, 1 month ago

Green House gases

ANSWER

Spotting for antaamoeba

Posted by Anant Kumar 8 years, 1 month ago

CBSE > Class 12 > Biology

0 answers

ANSWER

State function of pyrogens

Posted by Jasdeep Dhindsa 8 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Muskaan Sharma 8 years, 1 month ago

As the name suggests I think pyrogens are the organism which attack our body and increase the body temperature.

ANSWER

Uses of gmo

Posted by Jasdeep Dhindsa 8 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Muskaan Sharma 8 years, 1 month ago

GMO means genetically modified organisms, they have genes altered for better yield of products, to develop resistance against pests or insects or other organisms and also against abiotic factors

ANSWER

How is bryophyllum cultivated

Posted by Jasdeep Dhindsa 8 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Vivek Saini 8 years, 1 month ago

With the help of leaf buds

ANSWER

Why women hair doesn't fall

Posted by Dheeraj Mor 8 years, 1 month ago

CBSE > Class 12 > Biology

3 answers

Sakshi Rai 8 years, 1 month ago

Tum pagal ho kya...exam m ye nhi aaega. Doubts poochho apne...samjhe

Vivek Saini 8 years, 1 month ago

Wow! Nice question

Muskaan Sharma 8 years, 1 month ago

Wat u mean?

ANSWER

Colour blindness

Posted by Dhruvi Jain 8 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Pratap Patil 8 years, 1 month ago

Deficiency of rods and cones in eyes

ANSWER

What are the advantages of molecular diagnosis techniques?

Posted by A Rumz 8 years, 1 month ago

CBSE > Class 12 > Biology

0 answers

ANSWER

What is function of lysosome

Posted by Sonu Sadaf 8 years, 1 month ago

CBSE > Class 12 > Biology

0 answers

ANSWER

What is salivary amylase

Posted by Manisha Kapasia 8 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Pranjali Mahajan 8 years, 1 month ago

Its a type of enzyme present in saliva which helps in partial(30%) digestion of carbohydrates

ANSWER

What is a pedigree analysis

Posted by Ajay Yadav 8 years, 1 month ago

CBSE > Class 12 > Biology

0 answers

ANSWER

Difference between male homogenetic and female homogenetic *** determination

Posted by Divya Porwal 8 years, 1 month ago

CBSE > Class 12 > Biology

8 answers

Muskaan Sharma 8 years, 1 month ago

I've asked first, so at first u tell me n

Vineit Kumar Gupta 8 years, 1 month ago

Where are you from

Muskaan Sharma 8 years, 1 month ago

Yeah vineet

Vineit Kumar Gupta 8 years, 1 month ago

Are you asking me ?

Muskaan Sharma 8 years, 1 month ago

By the way from where u are?

Muskaan Sharma 8 years, 1 month ago

U r right but.....

Vineit Kumar Gupta 8 years, 1 month ago

Oh sorry i thought it you who have put asterisks i am sorry i was not aware that this app is moderating such words ?

Muskaan Sharma 8 years, 1 month ago

If male is homogenetic that means male is having both his *** chromosomes same and then male won't be responsible for *** determination of the baby as in case of birds. And if female is homogenetic that means the female is having both her allosomes same and there female won't be responsible for *** determination of the baby as in the case of humans.

ANSWER

Fossils excavation of king's Herod palace provided 10,000 yr old seeds of which plant?

Posted by Soumya Sakshi 8 years, 1 month ago

CBSE > Class 12 > Biology

2 answers

Muskaan Sharma 8 years, 1 month ago

That was the seed of Phoenix dactilyfera which was found to be 2,000 years old at excavations at king Herod's palace near dead Sea. And the seed which was found to be 10,000 years old was of Lupinus arcticus near Arctic tundra.

Muskaan Sharma 8 years, 1 month ago

It's a wrong question. .

ANSWER

What is a bacteriophage

Posted by Chinmay Nanda 8 years, 1 month ago

CBSE > Class 12 > Biology

2 answers

Simran Bammi 8 years, 1 month ago

Viruses that infect bacteria

Soumya Sakshi 8 years, 1 month ago

The virus causing infection in bacteria is called bacteriophage.

ANSWER

what is a syndrome?

Posted by Pooh Doming 8 years, 1 month ago

CBSE > Class 12 > Biology

2 answers

Simran Bammi 8 years, 1 month ago

Group of symptoms

Soumya Sakshi 8 years, 1 month ago

When symptoms of more than one disease occurs simultaneously,it is called syndrome.

ANSWER

1. Explain mendel's law of independent assortman by taking a suitable example? 2. How did Morgan show the deviation in inheritance pattern in drosophila with respect to this lo law?

Posted by Y Joon 8 years, 1 month ago

CBSE > Class 12 > Biology

0 answers

ANSWER

What is the difference between gene and alleles

Posted by Prince Deol 8 years, 1 month ago

CBSE > Class 12 > Biology

3 answers

Prince Deol 8 years, 1 month ago

Thanks all

Chinmay Nanda 8 years, 1 month ago

Genes are for heditary purpose and alleles are the various forms of gened

Samarpita Banerjee 8 years, 1 month ago

Gene is the hereditary unit. Alleles are homologous sites in a gene for a particular character.

ANSWER

Simplest

Posted by Zeeshan Ali 8 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Muskaan Sharma 8 years, 1 month ago

Simplest what?????

ANSWER

What is RNA splicing? Describe in detail.

Posted by Dhanaraj Singh Paonam 8 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Prid Tre 8 years, 1 month ago

Removal of introns and addition of exon

ANSWER

What are fishes of Antarctica :regulators or conformers?

Posted by Gopika Gaur 8 years, 1 month ago

CBSE > Class 12 > Biology

2 answers

Muskaan Sharma 8 years, 1 month ago

They must b conforms.

Sparsh Anand 8 years, 1 month ago

Conform

ANSWER

Define Nibenkern

Posted by Chhavi Sharma 8 years, 1 month ago

CBSE > Class 12 > Biology

2 answers

Sakshi Rai 8 years, 1 month ago

Haa yhi

Chhavi Sharma 8 years, 1 month ago

The spiral arrangement of mitochondria in the middle piece of human sperm and have 25 mitochondria

ANSWER

Reproduction in organisms

Posted by Nancy Gupta 8 years, 1 month ago

CBSE > Class 12 > Biology

2 answers

Sakshi Rai 8 years, 1 month ago

Helllooo

Anushka Tripathi 8 years, 1 month ago

Hi

ANSWER

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