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    • Posted by Rakesh Yadav 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 0 answers
    ANSWER

    • Posted by Nisha Yadav 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Mr. Singh 4 years, 8 months ago

    Integument.. >Outer cover of ovual. >Protects Ovule. >Has one or two layers. >Cells are living and do not have sclereids. Tests... >Outer cover of seed. >Protects young embryo inside a has seed. >Has one thich layer. >Cells are dead and have allergies.

    1Thank You

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    • Posted by Bhumi Dehariya 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Komal Jena 4 years, 8 months ago

    (a) This phenotype expression is called incomplete dominance. (c) The phenotypic ratio deviates from a typical Mendelian monohybrid ratio of 3 : 1 to 1 : 2 : 1. Since the heterozygous hybrid individual shows a different phenotype, i.e., pink colour flowers. The genotypic ratio remains the same as the Mendelian monohybrid ratio, which is also 1 : 2 :1

    0Thank You

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    • Posted by Himangshu Boro 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 2 answers

    Mr. Singh 4 years, 8 months ago

    Malacophily refers to when pollination of plants occurs through snails.

    1Thank You

    Tanya ?? 4 years, 8 months ago

    When pollination of plants occurs by snails.

    1Thank You

    ANSWER

    • Posted by Aayushi Chaudhary 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Akshat Sood 4 years, 8 months ago

    It states that two closely related species competing for same resource can never co exist...

    0Thank You

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    • Posted by Deepika Jha 4 years, 3 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Sia ? 4 years, 3 months ago

    During the follicular phase severalfollicles develop inside the ovary after that when follicle stimulating hormone decreases only one follicle develops, whereas in luteal phase the rupturedfollicle closes after releasing egg and formation of corpus luteum takes place.

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    • Posted by Vishal Verma 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 2 answers

    Owais Khan 4 years, 8 months ago

    Go to YouTube and watch goku vs cell. There you will see cell ?

    2Thank You

    Nandini Chauhan 4 years, 8 months ago

    With a microscope..

    1Thank You

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    • Posted by Harshvardhan Solanki 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 3 answers

    Akshat Sood 4 years, 8 months ago

    As stability is inversely proportional to reactivity Bcoz RNA is less stable

    0Thank You

    Nayan Sarkar 4 years, 8 months ago

    In rna there is an extra -OH than dna.... Thus rna is more reactive then dna

    1Thank You

    Varun Varun 4 years, 8 months ago

    Why?

    4Thank You

    ANSWER

    • Posted by Prashansa Mishra 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 2 answers

    Mr. Singh 4 years, 8 months ago

    A Restriction enzymes site or group of site (multiple cloning site) located in a vector at the best position for insertion of DNA.

    0Thank You

    Mr. Singh 4 years, 8 months ago

    A Restriction enzymes site or group of site (multiple cloning site) located in a vector at the best position for insertion of DNA..

    0Thank You

    ANSWER

    • Posted by Juman Kalita 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 4 answers

    Nandini Chauhan 4 years, 8 months ago

    Deoxyribonucleic acid

    1Thank You

    Arshdeepkaur Sandhu 4 years, 8 months ago

    Deoxyribose nucleic acid

    1Thank You

    Tanya ?? 4 years, 8 months ago

    DNA or DAN???? I think DNA hoga..

    3Thank You

    Juman Kalita 4 years, 8 months ago

    DAN full from

    0Thank You

    ANSWER

    • Posted by Ningthoujam Jinali 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 0 answers
    ANSWER

    • Posted by Yash Yadav 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 2 answers

    Itz ?? ?? 4 years, 8 months ago

    Aree puchna kya chahte ho bhyii

    1Thank You

    Sanya Rajput 4 years, 8 months ago

    Schools are allowed to conduct Practicals from march1 Board exams will be starting from may4 and will go on till 10th June Results will be declared in july

    0Thank You

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    • Posted by Bhawna Bhardwaj 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 0 answers
    ANSWER

    • Posted by Srishti Panwar 4 years, 5 months ago

    CBSE > Class 12 > Biology
    • 4 answers

    Sia ? 4 years, 5 months ago

    HIV causes AIDS and interferes with the body's ability to fight infections.

    The virus can be transmitted through contact with infected blood, semen or vaginal fluids.

    Within a few weeks of HIV infection, flu-like symptoms such as fever, sore throat and fatigue can occur. Then the disease is usually asymptomatic until it progresses to AIDS. AIDS symptoms include weight loss, fever or night sweats, fatigue and recurrent infections.

    No cure exists for AIDS, but strict adherence to antiretroviral regimens (ARVs) can dramatically slow the disease's progress as well as prevent secondary infections and complications.

    0Thank You

    Itz ?? ?? 4 years, 8 months ago

    Acquires immuno deficiency syndrome.. Hope it helps❤

    1Thank You

    Bhawna Bhardwaj 4 years, 8 months ago

    Acquired immuno deficiency syndrome. . it is caused by hiv ,a member of a group of viruses .

    0Thank You

    Bhawna Bhardwaj 4 years, 8 months ago

    Acquired immuno deficiency virus

    0Thank You

    ANSWER

    • Posted by Mahi Tanti 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 0 answers
    ANSWER

    • Posted by Shruti Mishra 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Itz ?? ?? 4 years, 8 months ago

    If we talk about the narrower meaning of health that it's just a diseased free state of a body.. But we if talk it on a broader aspect that it's all about the good physical mental social and emotional state of body.. Hope it helps❤ Don't forget to leave thanks?? ???_?? ??

    1Thank You

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    • Posted by Akansha Chaudhry 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 2 answers

    Itz ?? ?? 4 years, 8 months ago

    Je agr aise theortical ratna ho to kahi bhi mil ke ga Best source-google Mai apne way se bta deta hu usse shayad Or jayada aa je smjh... So, menstrual cycle is defined as the series of cyclic changes taking place in uterus of female.. To isme hota kuch aisa hai ki na jese har month jo endometrial wall hai na vo Apne ap ko embryo ko implant krne ke liye develop krti hai.. Ye thin layer hoti hai or jb rajkumar yaani bole to sperm nahi aata ovulation period me to ye endometrial wall shed krne lgti hai..Fer vo jo ovum hota hai jo ab mar chuka hota hai vo bhi ishi path se blood ke saath bahr aa jata hai.. Baaki ye females me near about 50 years ki age tk hota hai.. Or ek baat dhyaan dein ki yeh pregnancy ke liye kaafi important hai kyonki agr endometrial wall nyi ni bnegi to embryo implant ni hoga is krke aisa hota hai... Hope it helps❤❤ Don't forget to leave thanks?? ???_????

    4Thank You

    Sunaina Bhukta 4 years, 8 months ago

    The menstrual cycle is complex and controlled by many different glands and the hormones that these glands produce. The four phases of the menstrual cycle are menstruatio .n, the follicular phase, ovulation and the luteal phase. Common menstrual problems include heavy or painful periods and premenstrual syndrome (PMS). Knowing when in the menstrual cycle a woman is most likely to conceive can increase the chance of pregnancy.

    2Thank You

    ANSWER

    • Posted by Manish Kumar 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 3 answers

    Manish Kumar 4 years, 8 months ago

    @sunaina thx for your ans

    0Thank You

    Sunaina Bhukta 4 years, 8 months ago

    process modifying the molecular structure of a protein. Denaturation involves the breaking of many of the weak linkages, or bonds (e.g., hydrogen bonds), within a protein molecule that are responsible for the highly ordered structure of the protein in its natural (native) state.

    1Thank You

    Gaurav Seth 4 years, 8 months ago

    The most stable conformation of a protein at a given temperature and the pH is known as its native state.

    •   The loss of biological activity of proteins when a protein in its native form, is subjected to physical change like change in temperature or chemical change like change in pH, is called denaturation of protein.

    •   For example: (i) Coagulation of egg white on boiling, (ii) curdling of milk which is caused due to the formation of lactic acid by the lactobacillus bacteria present in milk.

    1Thank You

    ANSWER

    • Posted by Manihar Zinat Ayesha 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Meghna Thapar 4 years, 8 months ago

    The term of every patent in India is twenty years from the date of filing the patent application, irrespective of whether it is filed with provisional or complete specification. However, in case of applications filed under the Patent Cooperative Treaty (PCT), the term of twenty years begins from the priority date.  The term of every patent granted is 20 years from the date of filing of application. However, for application filed under national phase under Patent Cooperation Treaty (PCT), the term of patent will be 20 years from the international filing date accorded under PCT.

    0Thank You

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    • Posted by Drishty Kamboj 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Preeti Kannaujiya 4 years, 8 months ago

    This disease happens in a male only when the mother is a carrier with chromosome (xx^h) and father is haemophilic (x^h y). So if you do the cross of these two chromosomes you'll get four genotypes- (1)xx^h(carrier) (2)xy(unaffected male) (3)x^h x^h(affected female) (4)x^hy(haemophilic). That is, (1) this is linked to only X-chromosome. (2)there is 25% chance of an affected female too.

    1Thank You

    ANSWER

    • Posted by Deepika Jha 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 2 answers

    Itz ?? ?? 4 years, 8 months ago

    Je agr apne spermatocyte pucha hai to fer to jo meghna ne likha sahi hai but if you are asking about spermiocyte cell then, it's referred to as early stage of sperm.. If we talk about is feature, then it doesn't have tail and it's embedded in the nurse cell.. Hope it helps❤ Don't forget to leave thanks?? ???_?? ??

    1Thank You

    Meghna Thapar 4 years, 8 months ago

    Spermatocytes are the cells originating from the last spermatogonial division (B spermatogonia) from which spermatids, then, spermatozoa with half the chromosome complement of the original progenitor cell will be generated following the meiotic phase of spermatogenesis.

    2Thank You

    ANSWER

    • Posted by Deepika Jha 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 2 answers

    Sunaina Bhukta 4 years, 8 months ago

    The corona radiata is a bundle of nerve fibers located in the brain. ... The brain stem and the cerebral cortex both are involved in sensation and motor function, and the corona radiata connects both motor and sensory nerve pathways between these structures.

    0Thank You

    Drishty Kamboj 4 years, 8 months ago

    Guards the entry of sperm cells

    1Thank You

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    • Posted by Manihar Zinat Ayesha 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 2 answers

    Tanya ?? 4 years, 8 months ago

    To cut the DNA.

    0Thank You

    Gaurav Seth 4 years, 8 months ago

    ANSWER
    Restriction enzymes or restriction endonuclease are used to cut DNA into smaller fragments. The cuts are always made at specific nucleotide sequences. the Different restriction enzymes recognize and cut different DNA sequences.

    1Thank You

    ANSWER

    • Posted by Nikita Mittal 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 2 answers

    Itz ?? ?? 4 years, 8 months ago

    DNA's❤ 1.Hereditary material in most of eularyotes responsible for transmission of characters ? 2.Present in nucleus? 3.Transfers genetic material from one generation to another ? DNAse? 1.enzyme catalyzing Hydrolytic cleaveage of phosphodiester bond in dna? 2.Present in Cytoplasm? 3.use to cleave dna during recombinant dna technology ☺ Thanks @yogita ingle?.. Meko ye yaad nii tha maine bhi likh ke yaad kr lia??

    0Thank You

    Yogita Ingle 4 years, 8 months ago

    DNA

    DNAse

    1. DNA or Deoxyribonucleic acid is the hereditary material in humans and almost all other organisms.

    1. DNAse or Deoxyribonuclease is an enzyme that catalyses the hydrolytic cleavage of phosphodiester linkages in the DNA backbone.

    2. DNA is present in nucleus.

    2. DNAse is present in cytoplasm of the cell.

    3. DNA transfers genetic information from one generation to another.

    3. DNAse is an enzyme used to cleave DNA molecules during recombinant DNA technology.

    6Thank You

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    • Posted by Badboy Gaming 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 2 answers

    Itz ?? ?? 4 years, 8 months ago

    Ranking wise most important; 1.Genetics 2.Ecology 3.Biotech 4.Reproduction 5.Biology in human welfare Hope it helps❤ Don't forget to leave thanks?? ???_?? ??

    1Thank You

    Vasudev Bansal 4 years, 8 months ago

    Biotechnology,human physiology and genetics

    1Thank You

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    • Posted by Anamika Verma 4 years, 8 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Yogita Ingle 4 years, 8 months ago

    Repetitive DNA

    Satellite DNA

    1.

    Repetitive DNA are DNA sequences that contain small segments, which are repeated many times.

    Satellite DNA are DNA sequences that contain highly repetitive DNA.

    2Thank You

    ANSWER

    • Posted by Saina Haris 4 years, 9 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Yogita Ingle 4 years, 8 months ago

    Various ways to avoid pregnancy are as follows:
    (a) Physical barrier
    (b) Copper-T
    (c) Hormone pills
    (d) Surgical procedure

    Hormone Pills: Many hormones pills are available in the market. These pills stop ovulation and thus prevent conception. Many new pills are available which need to be taken in fewer doses. These are more convenient and have the least side effects. 

    Copper - T: Copper T is a very effective method of contraception. Its success rate in preventing pregnancy Is high. It is inserted high in the uterus by a physician and is effective for about 10 years. It does not provide protection against sexually transmitted diseases.

    0Thank You

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    • Posted by Kriti Maurya 4 years, 9 months ago

    CBSE > Class 12 > Biology
    • 2 answers

    Drishty Kamboj 4 years, 8 months ago

    Here the mendels law was contradicted.....one of the reasons for the late approval of mendels work

    1Thank You

    Chitrika Pandey 4 years, 8 months ago

    In case of Snapdragon ,the cross results in pink flower which doesn't inherited the characters of parents and shows an intermediate here the case is known as incomplete dominance .

    3Thank You

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    • Posted by Kriti Maurya 4 years, 9 months ago

    CBSE > Class 12 > Biology
    • 2 answers

    Preeti Kannaujiya 4 years, 8 months ago

    Drosophila melanogaster

    0Thank You

    Anamika Verma 4 years, 8 months ago

    Morgan discovered a mutation that affected fly eye color. He observed that the mutation was inherited differently by male and female flies. Based on the inheritance pattern, Morgan concluded that the eye color gene must be located on the X chromosome

    1Thank You

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    • Posted by Kriti Maurya 4 years, 9 months ago

    CBSE > Class 12 > Biology
    • 1 answers

    Vasudev Bansal 4 years, 8 months ago

    Because it occurs due to mutation in autosomes not *** chromosomes and it also doesn't pass from one generation to another so it is also a recessive disease and it occurs by replacing 1amino acid in beta chain of haemoglobin so it is also a point mutation

    1Thank You

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