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jarptica [38.1K]
3 years ago
15

Why you observe the shine of a mineral sample which property are you measuring ?A) Color B) Streak C) Cleavage D) Luster...pleas

e help

Biology
2 answers:
stepan [7]3 years ago
3 0
The answer is Luster

xenn [34]3 years ago
3 0

I think the answer is luster because luster because luster is to glow shine ect. somthing that that category of dome sort

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<span>The scientist that did NOT contribute to the idea of natural selection is <span>none of the above. The answer is letter D. Both Charles Darwin and Alfred Russel Wallace contribute to the natural selection and are biologist. Darwin hypothesized  his theory of evolution while Wallace supplied Darwin with birds for study only to found out that both have the same hypothesis regarding natural selection.

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3 years ago
List the kind of features you might expect to see near the edges of plates like these 2 plates that are coming together.
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<span>Some features you may expect to see at the site where two plates converge, or a convergent boundary, would be mountains and volcanoes. It may even form a chain of volcanoes. Earthquakes are likely as well.</span>
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3 years ago
Individuals producing an abnormal form of the extracellular matrix protein, fibrillin, is a result of ______.
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Answer:

Indivisuals with producing an abnormal form of extracellular protein fibrillin are suffering from Marfan syndrome ehich is caused by genetic mutation in the FBN1 gene.

Explanation:

Gene mutations in FBN1 gene results in the production of an abnormal extracellular matrix fibrillin-1 protein that cannot function properly. These gene mutations basically reduce the amount of fibrillin-1 produced by the cell, alter the structure of fibrillin-1, or causes the impairment of the transport of fibrillin-1 out of the cell.

As a result, protein is poorly incorporated into extracellular matrix. Hence, indivisuals with Marfan syndrome present following symptoms

Tall stature.

Disproportionately long arms, legs and fingers.

Sternum either protrudes outward or dips inward.

Arched palate and crowded teeth.

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6 0
3 years ago
Genes A and B are 10 map units apart and genes B and C are 20 map units apart, with gene B located between genes A and C. What w
Marizza181 [45]

Answer:

2% of the progeny will be double crossovers for the trihybrid test cross

Explanation:  

By knowing the positions of genes, we can estimate the distances in MU between them per region.

  • Genes A and B are 10 map units apart (Region I)
  • Genes B and C are 20 map units apart (Region II)
  • Genes A and C are 30 map units apart

----A-------10MU--------B-------------20MU-------------C---

             Region I                      Region II  

We can estimate the recombination frequencies by dividing each distance by 100.

• recombination frequency of A-B region = 10MU / 100 = 0.10

• recombination frequency of B-C region = 20MU / 100 = 0.20

Now that we know the recombination frequencies in each region, we can calculate the expected double recombinant frequency, EDRF, like this:

EDRF = recombination frequency in region I x recombination frequency in region II.

EDRF = 0.10 x 0.20 = 0.02        

2% of the progeny will be double crossovers for the trihybrid test cross

   

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3 years ago
A germ cell of an organism has 60 chromosomes in it. It undergoes meiosis, and at the end it produces four daughter cells. What
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30. Assuming that meiosis was undergone without error, the daughter cells formed are haploid.
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