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LekaFEV [45]
3 years ago
15

After studying the diagram above, Jenny concluded that the layer of clay was older than the layers of sand and gravel.

Biology
1 answer:
ss7ja [257]3 years ago
4 0

Both Jenny and Jack are correct.

Explanation:

According to the principle of superposition, both Jenny and Jack are perfectly correct.

The principle of superposition states that the oldest bed is at the bottom and the youngest is on top in an undeformed sequence of rock strata.

From this principle we can see that the sequence of the bed is:

 

  • soil                                                               Youngest rock layer
  • loam
  • sand and gravel
  • loam
  • clay
  • impermeable rock (limestone)                      Oldest rock layer

We can see that truly the clay is older than the sand and gravel according to Jenny.

The limestone is also older than loam according to Jack.

Learn more;

Sedimentary rocks brainly.com/question/9131992

#learnwithBrainly

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Using the information from problem 11, scientists do a further test cross using a heterozygote for height and nose morphology. T
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Answer:

The recombinant frequency between T and S is  18%;

The correct Sequence of genes is T-A-S

Explanation:

The table below shows the recombinant frequency between heterozygous height and nose morphology:

Tall-uptrend snout                            40%                            Expected

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Tall-uptrend snout                             9%                             Recombinant

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To calculate the recombinant frequency; we have :

=9+9

=18%

Hence, the recombinant frequency between T and S = 18%

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<h3>What do you mean by Transgenic organisms?</h3>

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