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expeople1 [14]
3 years ago
13

Which of the following best describes how the structure of ice benefits the organisms that live in the water below?

Biology
1 answer:
Ganezh [65]3 years ago
6 0

Answer:

The water molecules in ice are considerably far apart as compared to cold water of 4 degrees centigrade and below. This, therefore, makes ice less dense than water at these temperatures (because they are fewer water molecules in ice per unit volume). This is why ice floats on cold water below 4 degrees centigrade. Ice, being a bad conductor of heat, shields the water below an ice sheet from excessive heat loss to the atmosphere. This is why water remains liquid below an ice sheet protecting the marine life below from complete freezing.

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In an isolated population of 10,000 rabbits, 900 are homozygous for a recessive mutant Sp1 allele. Assuming the population is in
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42% of rabbits in the population are heterozygous for the mutant Sp1 allele

Hardy-Weinberg equilibrium

  • Assume that p is the frequency of the dominant allele
  • p² is the frequency of the organisms with homozygous dominant genotype
  • Assume that q is the frequency of the recessive allele
  • q² is the frequency of the organisms with homozygous recessive genotype
  • 2pq is the frequency of the organisms with heterozygous genotype
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According to the question, 900 out of 10000 rabbits are homozygous recessive

  • This implies that q² = 900/10000= 9/100= 0.09
  • So, q = 0.3
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For organisms with heterogenous genotype, their frequency is 2pq

2pq= 2 x 0.3 x 0.7 = 0.42

In terms of percentage, 0.42x 100% = 42%

Therefore, 42% of rabbits in the population are heterozygous for the mutant Sp1 allele.

Learn more about Hardy-Weinberg equilibrium here:

brainly.com/question/10482905

#SPJ10

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