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what are transformants and non-transformants?

Posted by Kashika Valmik 8 years, 3 months ago

CBSE > Class 12 > Biology

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Which is India's first National park.?

Posted by Vibin Das 8 years, 3 months ago

CBSE > Class 12 > Biology

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Vibin Das 8 years, 3 months ago

Well., it's better to get it from your grand mother . Right.?

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Draw a label digram or the development of embryo sac of an angiosperm plant and also describe of an embryo in the dicot plant with the help of diagram

Posted by Pooja Bhadoriya Karan 8 years, 3 months ago

CBSE > Class 12 > Biology

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DNA and RNA difference

Posted by Mrinmoy Borah 8 years, 3 months ago

CBSE > Class 12 > Biology

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Difference between DNA and RNA

Posted by Mrinmoy Borah 8 years, 3 months ago

CBSE > Class 12 > Biology

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Shaffy Mehta 8 years, 3 months ago

DNA has double stranded structure and rna ha single stranded structure

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State two point of difference between standing crop and standing state

Posted by Sonal Rohilla 8 years, 3 months ago

CBSE > Class 12 > Biology

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Sia ? 4 years, 9 months ago

Standing crop is defined as biomass of living material in an ecosystem at a particular time.

Standing state is defined as the amount of inorganic nutrients present in an ecosystem.

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How to prepare biology 12 within 1 months

Posted by Lalit Ekka 8 years, 3 months ago

CBSE > Class 12 > Biology

1 answers

Shaffy Mehta 8 years, 3 months ago

daily u read 1chapter

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What is aromatic hybrid?

Posted by Trilochan Behera 8 years, 3 months ago

CBSE > Class 12 > Biology

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How Transposons help in mRNA Silencing of eukaryotic cell ??

Posted by Shivani Maan 8 years, 3 months ago

CBSE > Class 12 > Biology

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Name about the gland present in male and female and about their functioning

Posted by Akash Yaduvanshi 8 years, 3 months ago

CBSE > Class 12 > Biology

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What is biogas

Posted by Ankit Mishra 8 years, 3 months ago

CBSE > Class 12 > Biology

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Rishu Yadav 8 years, 3 months ago

Biogas is the gaseous fuel, especially methane, produced by the fermentation of organic matter.

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What is spermiogenesis?

Posted by Shubham Jaiswal 8 years, 3 months ago

CBSE > Class 12 > Biology

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Nauman Akhtar 8 years, 3 months ago

Spermiogenesis is the final stage of spermatogenesis, which sees the maturation of spermatids into mature, motile spermatozoa. The spermatid is a more or less circular cell containing a nucleus, Golgi apparatus, centriole and mitochondria. All these components take part in forming the spermatozoon.

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2013question with answer class12th north

Posted by Jagriti Sinha 8 years, 3 months ago

CBSE > Class 12 > Biology

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what are the functions of GEAC

Posted by Shubham Batra 8 years, 3 months ago

CBSE > Class 12 > Biology

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what is cognogeny

Posted by Udayabhanu Rout 8 years, 3 months ago

CBSE > Class 12 > Biology

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Estrogen and progesterone which type of Harmon

Posted by Lokesh Ch 8 years, 3 months ago

CBSE > Class 12 > Biology

2 answers

Priyanka Bohra 8 years, 3 months ago

Female hormones

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Rishu Yadav 8 years, 3 months ago

Ovaries essentials. These hormones maintenance the health of female reproductive system

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Maximam energy amongst ecosystem is contributed by:- a) forests b) fuelgas c) crops d) coral

Posted by Rohan Laddad 8 years, 3 months ago

CBSE > Class 12 > Biology

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Do eukaryotic cells have restriction endonucleases.?

Posted by Gaurav Dwivedi 8 years, 3 months ago

CBSE > Class 12 > Biology

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Gaurav Dwivedi 8 years, 3 months ago

No...

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Ansh Roy Ansh Roy 8 years, 3 months ago

yes

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Can we call human evolution as adaptive radiation.

Posted by Rukhsana Badarudeen 8 years, 3 months ago

CBSE > Class 12 > Biology

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Luksh Kumar 8 years, 3 months ago

No, human evolution can not be called adaptive radiation. This is because the adaptive radiation is an evolutionary process that produce new species from a single.

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Priyanka Bohra 8 years, 3 months ago

Yes we can called human evolution a adaptive radiation

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i am anable to complete projectthe of phphysics + bioloy class 12 cbse help meof to completeof this

Posted by Mohit Dhabai 8 years, 3 months ago

CBSE > Class 12 > Biology

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When a pink colour flower bearing snapdragon plant was selfed ,it was found that 69 plant were having red coloured flowers . what would be the no. Of pink flower bearing plant and white flower bearing plant .show with the help of punnett square . identify the principle of inheritance involved in this experiment.

Posted by Shreyansh Chaturvedi 8 years, 3 months ago

CBSE > Class 12 > Biology

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Marking scheme chapterwise

Posted by Poonam Sweety 8 years, 3 months ago

CBSE > Class 12 > Biology

1 answers

Shambhu Kumar 8 years, 3 months ago

Reproduction - 14 Genetics and evolution - 18 Biology and Human Welfare - 14 Biotechnology and its applications - 10 Ecology and environment - 14

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what is FDH and it's function

Posted by Udayabhanu Rout 8 years, 3 months ago

CBSE > Class 12 > Biology

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Table for disease's

Posted by Kishor Gaonkar 8 years, 3 months ago

CBSE > Class 12 > Biology

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What is ecosystem in easy language?

Posted by Komaldeep Kaur 8 years, 3 months ago

CBSE > Class 12 > Biology

1 answers

Nauman Akhtar 8 years, 3 months ago

Ecosystem is a large community of living organisms (Animals,Plants,microrobes) in particular area .the living and physical components are linked together through nutrient cycle and energy flows.?????...

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Why estrogen or projesterone hormone is used in oral pills while they promote pregnancy?

Posted by Prachi Agarwal 8 years, 3 months ago

CBSE > Class 12 > Biology

2 answers

Komaldeep Kaur 8 years, 3 months ago

Because there are contraceptive pill

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Tanuja Biswas 8 years, 3 months ago

The use of oral pills is to alter the menstrual cycle which changes the time or stops ovulation, it also affects uterine walls and fallopian tubes making uterus unsuitable for implantation and stops fluid secretion from fallopian tube.

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What is multiple gene explain it with example

Posted by Shafat Hasan 8 years, 3 months ago

CBSE > Class 12 > Biology

4 answers

Tanuja Biswas 8 years, 3 months ago

I m sorry but its not multiple gene ..its multiple allelism. In this the gene has more than just two phenotypes for the expressed character which are controlled by more than two alleles( multiple alleles). Examples are ABO blood grouping in humans and skin color controlling gene in humans. In abo blood grouping, the three different alleles are IA, IBand i gene but in a human, a combination of two is there which gives the phenotype: IA IB combination gives AB blood group as phenotype, IA IA or IA i gives blood group A, IB IB or IB i gives B blood group and i i hives blood group O. This is also an example of co dominance. As two alleles are dominant here and not just one (IA and IB).

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Disha Pal 8 years, 3 months ago

ABO blood group is an example of multiple geans

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Jaya Shanti 8 years, 3 months ago

Two human examples of multiple-allele genes are the gene of the ABO blood group system, and the human-leukocyte-associated antigen (HLA) genes. The ABO system in humans is controlled by three alleles, usually referred to as IA, IB, and IO (the "I" stands for isohaemagglutinin).

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Jaya Shanti 8 years, 3 months ago

A polygene, multiple factor, multiple gene inheritance or quantitative gene is a member of a group of non-epistatic genes that interact additively to influence a phenotypic trait.

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What is homosexuality

Posted by Karan Thind 8 years, 3 months ago

CBSE > Class 12 > Biology