Question
Arjun and Sameer can complete a job in 20 days and 25
days respectively. When Arjun, Sameer, and Nikhil work together, they finish it in . If they receive a combined reward of Rs. (5x + 1000), then Nikhil’s share is how much percent more than Sameer’s?Solution
ATQ; Let total work = 100 units Efficiency of 'Arjun' = 100/20=5 units/day Efficiency of 'Sameer' = 100/25=4 units/day Combined efficiency = 100÷(20/3)=15 units/day Efficiency of 'Nikhil' = 15−(5+4)=6 units/day Ratio of Arjun : Sameer : Nikhil = 5 : 4 : 6 So, shares = Rs. 5a, Rs. 4a, Rs. 6a respectively Required percent = [(6a - 4a)/4a] × 100 = 50%
The technique of making numerable copies of gene is called as?
Mendel chose ………….. pairs of contrasting characters for his study. In all the above crosses he obtained a definite phenotypic ratio of ………...
Which one of the following is not the law as per genetics?
Which of the following micro organism is used in genetic engineering?Â
Which of the following characters is not typical to class Mammalia?
Sex-influenced traits are autosomal qualities that are impacted by sex. An example of sex influenced traits is
The gene is considered the basic unit of inheritance which are passed from parents to offspring. The alternate form of a gene is termed as
When one single gene starts affecting multiple traits of living organisms, this phenomenon is known as…………………..
...A cross between an inbred line and an open pollinated variety also known as
The type of inheritance in which a sex linked gene is inherited from grandfather to grandson through daughter is called as
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