Q#1: The human MN blood type is determined by two codominant alleles, LM and LN. The frequency of LM on a small island is 0.80. a. If random mating takes place in this population, what are the expected frequencies of the MM, MN, and NN blood types on the island? b. If the inbreeding coefficient for this population is 0.05 / 0.5, what are the expected frequencies of the MM, MN, and NN blood types on the island? c. Discuss your answers in respect to changes you observed? Why this happen? What does this mean?
Answers
Answer:
Correct Ans:40
Explanation:
First number * second number = LCM * HCF
52*Second number = 520 * 4
Second number = (520*4)/52
= 40
Then the other number is 40.
31. Find the LCM of 25, 30 and 60.
600 240 150 300 None of these
Correct Ans:300
Explanation:
Therefore, required LCM = 2*5*3*5*2 = 300.
32. The HCF of two numbers is 8. Which one of the following can never be their LCM?
24 48 56 60 None of these
Correct Ans:60
Explanation:
HCF of two numbers is 8. This means 8 is a factor common to both the numbers.
LCM is the common multiple of the two numbers, it is divisible by the two numbers.
Here from the given option, 60 is not divisible by 8.
Hence, correct answer is 60.
33. The L.C.M. of two numbers is 48. The numbers are in the ratio 2 : 3. Then sum of the number is:
28 32 40 64 None of these
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34. Which of the following has the most number of divisors ?
99 101 176 182 None of these
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35. The greatest number which on dividing 1657 and 2037 leaves remainders 6 and 5 respectively, is:
123 127 235 305 None of these
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36. The least number, which when divided by 12, 15, 20 and 54 leaves in each case a remainder of 8 is:
504 536 544 548 None of these
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37. Find the highest common factor of 36 and 84.
4 6 12 18 None of these
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38. Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is:
75 81 85 89 None of these
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39. The smallest number which when diminished by 7, is divisible 12, 16, 18, 21 and 28 is:
1008 1015 1022 1032 None of these
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40. The ratio of two numbers is 3 : 4 and their H.C.F. is 4. Their L.C.M. is:
12 16 25 48 None of these
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