Carbon dioxide (CO2) is:

HELP!! DNA was isolated from water samples taken from six different sites. This gel

VladimirAG [237]

After running DNA in a gel, bands of different sizes and species might appear. Scientists know silver carp are at North Shore site 1 because one of the bands in lane 1 matches a band in the positive control (Option C).

When DNA was isolated and run in a gel, many bands migrated to different points.

These bands were the different-sized fragments of DNA samples from different species from the six sites.

Researchers wanted to figure out where the silver carp is.

To do it, they needed to identify the bands on the gel that belonged to the silver carp DNA, so they included negative and positive controls to make comparisons.

<h3>Positive and negative Controls</h3>

Negative and positive controls guarantee the interpretations of the results.

The positive control shows the band sizes that belong to the silver carp DNA.

Any band in the sampling sites that matches one of the positive control bands indicates that the species is present at that site.

The negative control is the opposite. It is the absence of the species' DNA.

<h3>Results interpretation</h3>

As we can see, there are four sites where the bands match one of the bands of the positive control. These are,

North shore site 1
Chicago site 1
Calumet site 1
Calumet site 2

This means that at these four sites, the silver carp is present.

So scientists know silver carp are at North Shore site 1 because one of the bands in lane 1 matches a band in the positive control (Option C).

By looking at the lane of the North Shore site 1, we can also see another band (Thinner and grey). But this band does not match either of the positive control bands. This result suggests that the grey band belongs to another species' DNA.

You can learn more about gel electrophoresis at

brainly.com/question/9437877

brainly.com/question/895793

4 0

2 years ago

A template strand of DNA contains nucleotides in the following proportions: 14% adenine

MAXImum [283]

Answer:

The proportions of nucleotides in the newly formed complimentary strand will be:

14% Thymine (T), 33% Adenine (A), 21% Guanine (G), 32% Cytosine (C).

Explanation:

In a double stranded DNA, the nucleotides of one strand binds with nucleotides of another strand through hydrogen bonds.

Adenine binds with thymine by two hydrogen bonds (A=T) and guanine binds with cytosine by three hydrogen bonds (G≡C).

So, the complimentary strand must have

thymine equal to the amount of adenine in template strand.
adenine equal to the amount of thymine in template strand.
guanine equal to the amount of cytosine in template strand.
cytosine equal to the amount of guanine in template strand.

3 0

1 year ago

hen reproducing, Robins (a species of bird) typically lay four eggs. Laying more eggs might result in malnourished chicks and la

Anika [276]

Answer:

In favourable environments you might find birds laying more eggs, and a greater likelihood of multiple successful clutches. There are also birds like Bald Eagles, that start mating in early January and can lay eggs before Spring officially comes. 13. Food Availability. The amount of food available has an affect on bird mating cycles.

Explanation:

3 0

2 years ago

The procedure to attach individual synthetic eyelashes to a client's own lashes at their base is:

Step2247 [10]

Hello, this would be known as Eye Tabbing.
Hope this helps<3

7 0

3 years ago

optic nerves travel through the __________ to ensure that visual signals go to each hemisphere of the brain.

AleksAgata [21]

Answer:

Optic Chiasm

Explanation:

Optic nerves travel through the optic chiasm to ensure that visual signals go to each hemisphere of the brain.

3 0

2 years ago