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

An operon is a prokaryotic gene expression that includes structural genes and control elements that is recognised by regulatory gene product.... switch on is done by regulatory gene and switch off by inducer !

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Explain female heterogeneity with the help of an example

Posted by Vidhi Verma 7 years, 5 months ago

CBSE > Class 12 > Biology

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In the griffith experiment if ran instead of dna was the genetic material wod the heat killed strain of bacteria s have transformed the r to s

Posted by Kunal Singh 7 years, 5 months ago

CBSE > Class 12 > Biology

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Brifly describe the process of translation?

Posted by Muskan Khanal 7 years, 5 months ago

CBSE > Class 12 > Biology

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Kriti Chhetri 7 years, 5 months ago

The steps in translation are: The ribosome binds to mRNA at a specific area. The ribosome starts matching tRNA anticodon sequences to the mRNA codon sequence. Each time a new tRNA comes into the ribosome, the amino acid that it was carrying gets added to the elongating polypeptide chain.

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why is DNA replication process semi discontinues?

Posted by Muskan Khanal 7 years, 5 months ago

CBSE > Class 12 > Biology

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Hormonal control of menstrual cycle

Posted by Devesh Johari 7 years, 5 months ago

CBSE > Class 12 > Biology

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Amarjeet Kour 7 years, 5 months ago

Go through exam idea it is explained briefly

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Questions are asked from which portion 11th or 12th?

Posted by Vikash Kumar 7 years, 5 months ago

CBSE > Class 12 > Biology

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Nitish Prasad 7 years, 5 months ago

12 bhai

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Which book is useful for board examination

Posted by Vikash Kumar 7 years, 5 months ago

CBSE > Class 12 > Biology

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Minanshi Sharma 7 years, 5 months ago

NCERT is sufficient

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What is okazaki fragment

Posted by Neeraj Pandey 7 years, 5 months ago

CBSE > Class 12 > Biology

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Saloni S 7 years, 5 months ago

Okazaki fragments are short, newly synthesized DNA fragments that are formed on the lagging template strand during DNA replication. They are complementary to the lagging template strand, together forming short double-stranded DNA sections.

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List the causes and ill effects of population explosion

Posted by Nish Anth 7 years, 5 months ago

CBSE > Class 12 > Biology

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Saloni S 7 years, 5 months ago

causes :-1) decreasing death rate 2)increasing birth rate 3) early marriages 4)not use contraceptives 5) not family planning ill effects:-1)unemployment 2)increase pressure on earth

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Nilesh Sithemsetti 7 years, 5 months ago

Search in google You will easily find it

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Name a prenatal diagnostic technique. Write it's advantage and disadvantage

Posted by Abhishek Singh 7 years, 5 months ago

CBSE > Class 12 > Biology

1 answers

Aadarsh Hanuman 7 years, 5 months ago

Amniocentesis

*** of baby could be determined prenatally

Female foeticides

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What is the most important topics for compartment exam?

Posted by Monty Kumar 7 years, 5 months ago

CBSE > Class 12 > Biology

1 answers

Hina Sagar 7 years, 5 months ago

Kis subject ke important topics janne h

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What is tonsils.??

Posted by Siddharth Prajapati 7 years, 5 months ago

CBSE > Class 12 > Biology

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What is mast cells?

Posted by Siddharth Prajapati 7 years, 5 months ago

CBSE > Class 12 > Biology

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Yogita Ingle 7 years, 5 months ago

Mast cell is a granulocyte found in connective tissue throughout the body, particularly in association with structures such as blood vessels and nerves and releasing substances such as heparin and histamine in response to injury or inflammation of bodily tissues. They play an important protective role in wound healing and defense against pathogens.

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Describe Megaspore

Posted by Piyush Jain 7 years, 5 months ago

CBSE > Class 12 > Biology