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Biotechnologychapter important question

Posted by Sameer Sharma 7 years, 1 month ago

CBSE > Class 12 > Biology

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Use of dna finger printing other than forensic use

Posted by Cicil George 7 years, 1 month ago

CBSE > Class 12 > Biology

2 answers

Cicil George 7 years, 1 month ago

Tnq

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Mahak Kanojia 7 years, 1 month ago

1. To settle paternity disputes 2. To identify racial groups to study biological evolution

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What is the difference between transformant and recombinant

Posted by Swaliya Saifi 4 years, 6 months ago

CBSE > Class 12 > Biology

1 answers

Sia ? 4 years, 6 months ago

The main difference between transformants and recombinants is that transformants are the cells that have undergone a transformation, whereas recombinants are the cells that are transformed with recombinant DNA.

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Explain the process of implantation?

Posted by Muskan Khanal 7 years, 1 month ago

CBSE > Class 12 > Biology

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Why retroviral is used to introduce the ada gene in the lymphocytes of the blood

Posted by Kanika Mishra 7 years, 1 month ago

CBSE > Class 12 > Biology

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Use of dna finger printing other than forensic use??

Posted by Cicil George 7 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Sunder Singh 7 years ago

(1). It is used for finding the paternal history (2) it is used for finding the evolutionary history also

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What type of question in cbsc board exam in biology....?what is a important topic & questions in board exam...

Posted by Lavi Dagar 7 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Preeti Dahiya 7 years, 1 month ago

Just read ncert book thoroughly

2Thank You

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What is the hybride of tomato and potato?

Posted by Uttarai Reang 7 years, 1 month ago

CBSE > Class 12 > Biology

3 answers

Tarun Bhati 7 years, 1 month ago

Pomato

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Santoo Ganiger 7 years, 1 month ago

Pomato

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Karan Singh 7 years, 1 month ago

Pomato

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Name the four gases which present in the primitive atmosphere. which Kingdom was the first two envolve on the earth?

Posted by Vivek Shakya 5 years, 8 months ago

CBSE > Class 12 > Biology

2 answers

Mahak Kanojia 7 years, 1 month ago

Monera were the first

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Rahul Sharma 7 years, 1 month ago

Methane NH 3 WATER VAPOURS AND H2

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Alice spices are invaisive and are a threat of indigenous species. Substantiate this statement with any three examples

Posted by Vivek Tayal 7 years, 1 month ago

CBSE > Class 12 > Biology

2 answers

Mahak Kanojia 7 years, 1 month ago

1. Nile perch led to extinction of species of cichlid fish 2. Water hyacinth, Lantana, prickly pear cactus all are alien species

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Vivek Shakya 7 years, 1 month ago

Name the four gases which were present in the primitive atmosphere . Which kingdom was the first to envolve on earth?

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All objective type

Posted by Pawan Kushwah 7 years, 1 month ago

CBSE > Class 12 > Biology

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What is Watershed

Posted by Sammu Khan 7 years, 1 month ago

CBSE > Class 12 > Biology

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What is cryopresarvation? Give its one use

Posted by Manidipa Mohanty 7 years, 1 month ago

CBSE > Class 12 > Biology

2 answers

Sunder Singh 7 years ago

the process of preserving biological material in nitrogen liquid is called cryopreservation it is used for conserving eggs of extinct species or pollen grains

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Vinayak Sharma 7 years, 1 month ago

Preservation of the pollen grains at temperatures - 196.C

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Defie species biodiversity?

Posted by Shivani .. 7 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Mahak Kanojia 7 years, 1 month ago

Diversity at species level Ex. Western ghats have more no of species of amphibian as eastern ghats

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what is speciation and isolation?

Posted by Shaima Ameen 7 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Sunder Singh 7 years ago

Formation of new species from the existing ones is called speciation

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Differentiate coding and non coding strand

Posted by Santoo Ganiger 7 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Shaima Ameen 7 years, 1 month ago

coding strands are the strands which contains the informations and are also called exons non coding stranda are the strands which does not contain any information and are also called introns. In the process of splicings introns are removed and exons are joined.This is called hn rna. capping and tailing are done and now this fully processed hn rna is transported to nucleus for translation

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Name one gustatory and one olfactory receptor present in humans

Posted by Prabhat Pant 7 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Mahak Kanojia 7 years, 1 month ago

Gustatory receptor- taste buds in tongue which consist of three types of cells. 1. Gustatory receptor cells 2. Basal cell 3. Supporting cell Olfactory receptor - olfactory epithelium located in roof of nasal cavity

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What are hydrophytes

Posted by Sriram Nivas 7 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Sriram Nivas 7 years, 1 month ago

Plant that grow in abundance of water

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Define amniocentesis

Posted by Santoo Ganiger 7 years, 1 month ago

CBSE > Class 12 > Biology

2 answers

Mahak Kanojia 7 years, 1 month ago

It is a foetal *** determination test based on the amniotic fluid present around the developing embryo..

1Thank You

Shaima Ameen 7 years, 1 month ago

the *** determination of a baby before birth.

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What are conformers and regulators ?

Posted by Shivani .. 7 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Mahak Kanojia 7 years, 1 month ago

Conformers are those organisms which are not able to maintain their homeostasis.... Their body temperature changes with ambient temperature.. Nd their osmotic concentration of body fluids changes with ambient osmolarity..... Ex. Plants... And all invertebrates... Exception.. Hag fish. Nd elasmobranch which is a vertebrate Regulators are those which can maintain their homeostasis.. Ex.. Vertebrates . except hag fish........,, . Mammals.... . Human beings profusely sweat when their body temperature increase which causes evaporative cooling nd in winter's shiver which is an exercise for generating heat in body....

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Who gave the theory of spontaneous generation?

Posted by Aarthi Murali 7 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Yogita Ingle 7 years, 1 month ago

Theory of spontaneous generation states that living organisms originated abiogenetically from non-living materials at once.

This theory was dismissed by Francisco Redi, Lazzaro Spallanzani and Louis Pasteur.

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Mention two events in which DNA is unzipped

Posted by Tanu Chahar 7 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Yogita Ingle 7 years, 1 month ago

1. DNA replication in the S-phase of interface enzyme - enzymes are DNA polymerase, DNA helicase, ligase etc

2. Transcription of protein synthesis -enzyme are-DNA dependent RNA polymerase, DNA helicase, ligase etc

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Dexomposition of detritus

Posted by Tanish Parmar 7 years, 1 month ago

CBSE > Class 12 > Biology

0 answers

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Define the reproduction?

Posted by Dilshad Saify 7 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Deepa Singh 7 years, 1 month ago

Reproduction is a biological process in which an organism give rise to the young ones similar to itself(asexual reproduction) Or dissimilar (sexual reproduction).

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practical questions

Posted by Ali Soni 7 years, 1 month ago

CBSE > Class 12 > Biology

0 answers

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el nino effect

Posted by Ramhari Meena 7 years, 1 month ago

CBSE > Class 12 > Biology

1 answers

Vishali Raina 7 years, 1 month ago

An abnormal weather pattern caused by warming of pacific ocean and the displacement of normally cold water. It affects weather pattern,and can be responsible for flood and drought conditions.

1Thank You

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What is MTV in genetic material?

Posted by Nokrikchi Shira 7 years, 1 month ago

CBSE > Class 12 > Biology