No products in the cart.

Ask questions which are clear, concise and easy to understand.

Ask Question

    • Posted by Chandan Pan 2 years, 9 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Pulkit Sharma 2 years, 9 months ago

    Cancer cells are different from normal cells by following point: • normal cells show aging they do not show aging. • normal cells show contact inhibition they do not show contact inhibition. • Cancer cell do not show hay-flick limit* * Limited capacity to divide

    1Thank You

    ANSWER

    • Posted by Shubham Gupta 2 years, 9 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Nandini Saini 2 years, 9 months ago

    Transgenic animals have mutated Gene by technique of r 🧬

    1Thank You

    ANSWER

    • Posted by Sachin Kumar 2 years, 9 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Syed Sadiq Ahamed 2 years, 9 months ago

    Buds - hydra Bulbils - Agave

    1Thank You

    ANSWER

    • Posted by Ayushi Angiras 2 years, 9 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Ayushi Angiras 2 years, 9 months ago

    Multinucleated daughter cell formed without mitosis in this both keriokinesis and cytokinesis occur this is called plasmotomy

    1Thank You

    ANSWER

    • Posted by Sonu Kumar 2 years, 9 months ago

    CBSE > Class 12 > Biology
    • 0 answers
    ANSWER

    • Posted by Rimsha Layeek 2 years, 9 months ago

    CBSE > Class 12 > Biology
    • 2 answers

    Mohd Shad 2 years, 9 months ago

    Yes

    1Thank You

    Adeeba Fatima 2 years, 9 months ago

    The process of formation of microspore from pollen mother cell through meiosis is known as microsporogenesis....

    2Thank You

    ANSWER

    • Posted by Keshav Mishra 2 years, 9 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Anjan Karthi 2 years, 9 months ago

    In a set of two given alleles pertaining to a single gene, only one of the allele gets expressed in a generation which is the dominant allele and the one dominated by dominant allele is called the recessive allele.

    0Thank You

    ANSWER

    • Posted by Bhupesh Sahu 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 2 answers

    Sakshi Bhadra 2 years, 9 months ago

    Sporopollen is Resistance Substance found in Exine which Outter protective covering of Pollen grain.

    1Thank You

    Sakshi Gupta 2 years, 10 months ago

    Sporopollenin is organic resistance substance

    1Thank You

    ANSWER

    • Posted by Sakshi Gupta 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Anjan Karthi 2 years, 9 months ago

    Suitable good quality pollens taken from the bank can be used by farmers to induce artificial pollination and further, fertilization in their crops to get better yield. Pollen grains are stored in liquid nitrogen at -196°C in banks.

    0Thank You

    ANSWER

    • Posted by Varsha Pal 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 0 answers
    ANSWER

    • Posted by Khushboo Shrivastav 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 3 answers

    Sonakshi Upadhyay 2 years, 9 months ago

    Ok dm

    0Thank You

    Tasmay Roy 2 years, 10 months ago

    It's not my n syllabus

    0Thank You

    Kumkum Nagar 2 years, 10 months ago

    I want biology chapter 1st reproduction in organisms notes

    0Thank You

    ANSWER

    • Posted by Divya. Kumari 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 3 answers

    Preeti Dabral 2 years, 10 months ago

    EcoRI is the restriction enzyme isolated from Escherichia coli. The recognition site for this enzyme is GAATTC. BamHI is isolated from Bacillus amyloliquifaciens. The recognition site for this enzyme is G^GATTC.

    1Thank You

    Divya. Kumari 2 years, 10 months ago

    How do bacteria defence itself from virus? Which enzymes were helped in it?

    0Thank You

    Susmita Oram 2 years, 10 months ago

    EcoRl and smal

    1Thank You

    ANSWER

    • Posted by Yogendra Sirdar 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Sakshi Gupta 2 years, 10 months ago

    A cloning vector is a small piece of DNA that can be stably maintained in an organism, and into which a foreign DNA fragment can be inserted for cloning purposes.

    4Thank You

    ANSWER

    • Posted by Shahanas Yeasmin 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 0 answers
    ANSWER

    • Posted by Yama Tana 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Preeti Dabral 2 years, 10 months ago

    There are two immune response.

    1. The primary immune response occurs when an antigen comes in contact with the immune system for the first time. During this time the immune system has to learn to recognize the antigen and how to make an antibody against it and eventually produce memory lymphocytes.
    2. The secondary immune response occurs when the second time (3rd, 4th, etc.) the person is exposed to the same antigen. At this point, immunological memory has been established and the immune system can start making antibodies immediately.

    1Thank You

    ANSWER

    • Posted by Kishanth K 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 3 answers

    Preeti Dabral 2 years, 10 months ago

    LH stimulates the synthesis and release of androgens such as testosterone by acting on Leydig cells

    1Thank You

    Ruhani Arora 2 years, 9 months ago

    LH Hormone

    0Thank You

    Sakshi Gupta 2 years, 10 months ago

    Testosterone

    0Thank You

    ANSWER

    • Posted by Keerti Atwal 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 3 answers

    Dilshad Ahmad 2 years, 7 months ago

    Adaptive radiation is an evolutionary process in which from one species many species r radiate. ex- darvin finches

    0Thank You

    Sakshi Gupta 2 years, 10 months ago

    It is the evolutionary process by which many species originate from one species in area and radiated to different species. For example- Darwin finches

    1Thank You

    Aryan Sahu 2 years, 10 months ago

    Adaptive radiation is an evolutionary process that produces new species from a single, rapidly diversifying lineage. This process occurs due to natural selection. An example of adaptive radiation is Darwin finches, found in Galapagos Island.

    0Thank You

    ANSWER

    • Posted by Arprita Pradhan 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Preeti Dabral 2 years, 10 months ago

    Our body adapts to low oxygen availability by increasing red blood cell production decreasing the binding capacity of haemoglobin and by increasing breathing rate.

    0Thank You

    ANSWER

    • Posted by Lucifer . 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Ruhani Arora 2 years, 9 months ago

    A ( Both are correct and its correct explanation)

    6Thank You

    ANSWER

    • Posted by Narendra Durga 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 2 answers

    Jatin Kuchiya 2 years, 10 months ago

    cancer cells grow in the absence of signals telling them to grow. Normal cells only grow when they receive such signals. ignore signals that normally tell cells to stop dividing or to die (a process known as programmed cell death, or apoptosis)

    0Thank You

    Divya. Kumari 2 years, 10 months ago

    Cancer cells continue their division and they lost cotact inhebition property.normal cells stop cell devision and they have contct inhibition property.

    0Thank You

    ANSWER

    • Posted by Pallavi Maurya 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Rachna Bhati 2 years, 10 months ago

    Anemophily is define as when pollination happens with the help of wind .

    0Thank You

    ANSWER

    • Posted by Divya. Kumari 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 2 answers

    Shagun Rana 2 years, 10 months ago

    Name them

    0Thank You

    Priya Naudiyal 2 years, 10 months ago

    3

    0Thank You

    ANSWER

    • Posted by Riya Sharma 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Preeti Dabral 2 years, 10 months ago

    <th scope="col" style="width: 66px;">

    1.Meaning

    In a grazing food-chain, the first starts with plants as producers and ends with carnivores as consumers at the last level, with the herbivores being at the intermediate level.

    A detritus food chain is based on autotrophs energy capture initiated by grazing animals and involves the decomposition or breaking down of organic wastes and dead matter derived from the grazing food-chain.
    2.Origin The grazing food chain begins with the green plants. In the detritus food chain,it begins with decomposed and dead organic matter. 

    2.Levels

    The levels involved in a grazing chain range between 3 to 5.

    The levels involved in a detritus food- chain range between 3 to 7

    3.Example

    Example of grazing food chain is Plants-Cow-Lion.

    Example of detritus food chain is Insects-Rat-Cat-Dog-Lion.

    0Thank You

    ANSWER

    • Posted by Riya Sharma 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 0 answers
    ANSWER

    • Posted by Yashika Sharma 2 years, 3 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Pulkit Avish 2 years, 3 months ago

    Hi

    5Thank You

    ANSWER

    • Posted by Md Saif 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Aditya Pal 2 years, 10 months ago

    The collapsing or male (sperm)and female (ova )

    1Thank You

    ANSWER

    • Posted by Kash Brar 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 2 answers

    Mishika Pandey 2 years, 10 months ago

    Blah blah blah blah 😸

    0Thank You

    Kash Brar 2 years, 10 months ago

    Deep artery of vorpus cavernosa

    1Thank You

    ANSWER

    • Posted by Tanisha Upadhayay 2 years, 10 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Kash Brar 2 years, 10 months ago

    Process called hydrolysis

    1Thank You

    ANSWER

    • Posted by Tanisha Upadhayay 2 years, 11 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Kash Brar 2 years, 10 months ago

    It basically catalyses the first step of lactose fermentation in colon

    1Thank You

    ANSWER

    • Posted by Mamta Chetri 2 years, 11 months ago

    CBSE > Class 12 > Biology
    • 0 answers
    ANSWER

    myCBSEguide App

    myCBSEguide

    Trusted by 1 Crore+ Students

    Install Now

    Test Generator

    Test Generator

    Create papers online. It's FREE.

    Try Now

    CUET Mock Tests

    CUET Mock Tests

    75,000+ questions to practice only on myCBSEguide app

    Install Now
    Google Play

    Download myCBSEguide App

    All Courses

    Other Websites

    CBSE Courses

    Resources

    Corporate

    NCERT Solutions

    CBSE Sample Papers

    All Content and Intellectual Property is under Copyright Protection | myCBSEguide.com ©2007-2025