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CBSE Class 10 Answered

what helps an individual to adapt itself to the surrounding
Asked by Amber Tanweer | 25 Jan, 2014, 08:55: PM
answered-by-expert Expert Answer
Adaptation is the ability of an organism to survive better in its environment by developing certain physical or behavioural characteristics. Adaptation may occur due to evolution or when a gene mutates, or changes by accident. The mutation causes the organism to survive better and reproduce, and it passes on that trait to its offspring. It can take several generations to develop an adaptation. Lamarck's theory of inheritance of acquired traits explains adaptation by natural means.
Answered by Sheetal Kolte | 27 Jan, 2014, 10:43: AM

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CBSE 10 - Biology
1+1
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CBSE 10 - Biology
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CBSE 10 - Biology
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CBSE 10 - Biology
Write the name of indicated part in diagram: Human Jaw    
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Asked by paresh0311 | 20 Mar, 2023, 02:52: PM
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CBSE 10 - Biology
Two human beings who can both roll their tongues produced 11 children. 3 of these children could not roll their tongues and 8 children could roll their tongues. (a) Which trait (rolling or not rolling) is controlled by the recessive allele? (b) State all possible genotypes of the F1 generation of the cross. Show the inheritance of the tongue rolling in humans in the given example using a suitable cross. What percentage of offspring will show the same genotype as the parents? OR (c) If one of the parents could not roll their tongue, with the help of a cross, calculate the ratio of tongue- rollers to non-tongue-rollers in the off springs.​
Asked by Venkata Raman | 06 Feb, 2023, 06:59: PM
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CBSE 10 - Biology
In human, the allele for brown eyes (B) is dominant over that for blue eyes (b). A brown eyed woman marries a blue eyed man, and they have six children. Four of the children are brown eyed and two of them are blue eyed. a) What is the genotype of blue eyes offspring? b) What is the woman's genotype? c) Mention the above process of inheritance in a flow chart.
Asked by swetalinasamantaray022 | 29 Dec, 2022, 01:27: PM
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CBSE 10 - Biology
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CBSE 10 - Biology
importance of variation?
Asked by blessybhatia09 | 17 Apr, 2022, 10:47: PM
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CBSE 10 - Biology
a man with blood group A ,black color hair is crossed with woman with blood group O , brown colour hair show the monohybrid cross
Asked by srestasingh7 | 26 Dec, 2021, 10:36: PM
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CBSE 10 - Biology
what is evolution
Asked by aaazwasi | 25 Jun, 2021, 12:23: PM
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