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3 years ago

What information could cancer researchers gain from using DNA microarrays?

1 answer:

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DNA microarrays allow scientists to determine the genotype of a chunk of our genome and also measure the how the genes in that chunk are expressed. Using this technique has been essential in isolating genes that predispose people to cancers, and therefore allowing physicians to preemptively identify and monitor at-risk individuals. For instance, the genes BRCA1, BRCA2, and PALB2 have all been identified (using DNA microarrays) and linked to breast cancer. Knowing this allows individuals to seek out testing and take appropriate measures to prevent cancer/monitor the possible onset of cancer, which has proven to be life-saving.

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Now that you have come up with an equation that describes the relationship between amounts of different nucleotide bases in DNA,

Elza [17]

Answer:

The correct answer will be- 21, 29, 29

Explanation:

In a DNA sequence, the nucleotide base pairs on one strand of DNA are complementary to the base pair on other strand of DNA.

According to the Chargaff rule, Adenine binds Thymine and Cytosine binds Guanosine which shows that the amount of A will equal T and the amount of G will equal C.

Therefore, when the amount of C is 21%, then the amount of G will be 21%.

To find amount of AT= 100-GC

AT= 100-42

AT= 58%

So, AT/2= 29% each

Thus, A=T= 29%

G=C=21%

5 0

3 years ago

What name is given to the movement of solutes , such as glucose , into and out of cells ?

Rzqust [24]

Osmosis.............
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4 years ago

Which characteristic of water allows for a spider to glide across the top of water due to the strong hydrogen bonds among water

Semmy [17]

Surface tension is the answer

5 0

4 years ago

Four examples of the effects of environmental change are given . Match each one with the type of environmental change it demonst

Ann [662]

Environmental change has to do with any kind of alteration that occurs in the natural environment.

<h3>What is environmental change?</h3>

The term environmental change has to do with any kind of alteration that occurs in the natural environment. These changes may be caused by a lot of factors and they may lead to changes in the kind organism that are found in the habitat.

Thus, the types of environmental changes demonstrated are;

African elephants have been hunted to near extension to obtain ivory - Human exploitation

The eruption of Mount Saint Helens destroyed some populations of conifers - Natural disaster

An infection with fungus reduced the population of the North Africa elm trees - Diseases

Increasing global temperatures have affected the migration patterns of humpback whales - Climate change

Learn more about environmental change:brainly.com/question/1568635

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2 years ago

The enzyme β-galactosidase catalyzes what reaction?

posledela

For breaking down lactose

5 0

3 years ago