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pshichka [43]
4 years ago
14

How does Antarctic soil differ from soil found in warmer, wetter climates?

Biology
2 answers:
Taya2010 [7]4 years ago
7 0
Antarctic soil differs from other soil because it is formed from volcanic rocks
olchik [2.2K]4 years ago
3 0

Answer:

The principal difference is the amount of organic content in the soil

Explanation:

In warm places of the world there is a lot of life, there we can find big forests where are living thousands of animals and plants; when this organisms die they rest on the ground and start a descomposition until become part of the soil. This kind of soil is very dark, almost black, is humid and very rich in nutrients and minerals.

The Antartic weather doesn't allow a lot of life to be there and for that reason its soil has a poor amount of organic content. Besides, the climate there is considered dry and its soils have not enough amount of water.

There are differences related with the rocks under the soil, but actually we have all kind of rocks all over the world, so it is not the most important difference.

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Explanation:

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Assume that the mother's genotype is AZ/az, and the father's genotype is Az/aZ, and the recombination rate is 10%. What are the
Varvara68 [4.7K]

Answer:

.45 from mom, .05 from dad

Explanation:

Given that:

the mother's genotype is AZ/az

i.e AZ = 50%

az = 50%     (parental)

But  we  were also told that the recombination rate is 10% which will like wise affect the mother's genotype

So 100% -10% = 90 % of the mother's genotype

We have a new genotype

AZ = 45%

az = 45% (parental)

Therefore the probability of az gamete from the mother = \frac{45}{100}

= 0.45

Similarly; the genotype of the father is:  Az/aZ

This is an heterozygous father who is diploid hence, there is a remarkable presence of two copies of each autosomal chromosome.

Az is the allele of the genes in one chromosomes and aZ is the allele of the genes in the other.

The gametes of this self cross are: Aa, AZ, az, zZ

Therefore; the recombinants are:

AZ

az

Since there are 10% recombinant; then

AZ = 5%

az = 5%

Therefore the probability of az gamete from the father = \frac{5}{100}

= .05

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