A scientist carried out an experiment to follow the movement of carbon atoms within animal cells. To do this, the scientist added glucose with radioactively labeled carbon atoms to a culture of cells growing in a Petri dish.

After a certain amount of time had passed, the scientist tested parts of cells for radioactivity. Radioactivity was detected in various biomolecules, including DNA.


Which of the following statements best explains why radioactivity was detected in the DNA?
Choose 1 answer:

(Choice A)
The DNA was in close proximity to the radioactive glucose during its formation.

(Choice B)
Carbon atoms that were once in the radioactively labeled glucose were used to form DNA.

(Choice C)
The DNA was made up of radioactively labeled glucose subunits.

Carbon atoms that were once in the radioactively labeled glucose were used to form DNA -  this statement best explains why radioactivity was detected in the DNA.

Radioactivity is known to induce tumors, chromosome lesions, and minisatellite length mutations.

Deoxyribonucleic acid is a polymer composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions.

The radiation could damage the cell’s DNA, but the DNA repairs itself. The radiation could prevent the DNA from replicating correctly. The radiation could damage the DNA so badly that the cell dies.

The correct answer is option B.

Learn more about radioactivity, refer:

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Answer:

the answer is b - carbon atoms that were once in the radioactively labeled glucose were used to form DNA

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Metal Mass (9) Volume (cm) Gold 77.28 4.00 Platinum 64.35 3.00 Tungsten 96.75 5.00 Silver 63.00 6.00 29) A jeweler has selected a metal with a density of 19.35 g/cm' to make a ring. Which of the metals was selected?
A) Gold
B) Plantinum
C) Sliver
D) Tungsten ​

Oxygenated blood exits the heart ______________, whereas oxygenated blood enters the ______________ of the heart

Suppose you are going to draw models of the four main biomolecules.
Which statement describes how the models will be similar? *

What types of organisms photosynthesize?

What would be the genotype for a plant that is heterozygous for the trait above?
a-Gg
b-Green seed pods
c-GG
d-Yellow seed pods

1. Why does the angle of the sun at noon seem to change at different months throughout the year?

2. How does this create seasons?

a.
F. The spindle is
the DNA found in the nucleolus.
b. a circular shaped bacterial chromosome.
joined strands of duplicated genetic material.
d. the centrioles and the microtubules they secrete.
C.

C. Let's say that there are 140 minnows in this lake when the amount of resources in this lake
decreases and the carrying capacity drops from 150 to 100 minnows. What will happen to this
minnow population? Why will this happen?

which organelle modifies sorts and packages proteins

why are there earthquakes​

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Which statement describes the moment magnitude scale?

__________________________bacteria survive in the harsh environment of the stomach because it is able to neutralize the gastric acids and live in the mucosal stomach lining, safe from the host's immune responses.

what hormone makes girls emotional on their period

Why can cells in the bone marrow produce both red and white cells

The Maine Department of Transportation (DOT) has a fleet of roughly 400 plow trucks that are used to control snow and ice on
approximately 8300 lane miles of Maine's state roads. They usually plan on an average of about 30 treatable events in a winter. This
includes the use of rock salt, salt brine and winter sand, a mix of sand and salt. Salt brine is used on roads and bridges prior to a
storm to delay ice and snow from sticking to the roadway and is also used in plowing to fight the buildup of ice and snow throughout
the storm. Rock salt helps keep roads safe when winter storms hit, reducing winter road accidents, but it can also have negative
effects on plant life and aquatic ecosystems. What is something your community can try to reduce the environmental impact of
salting? Select ALL that apply.
A)
Buy more snow plows and use less salt.
B)
Ban all salt based solutions in the state.
C)
Provide incentives to consumers who install snow tires for increased
traction.
D)
Provide tax incentives to municipalities who will install solar panels that
heat water in pipes embedded in the road.
Wet the pavement before applying brine solutions to help the salt adhere
to the road, cutting back on how much they use.
E)

A ____ called _____ is found inside most plants cells

Answer the following for 20 points ……….

which macromolecule is the main component of cell membranes

The term “survival of the fittest” means the organism that is ___ will survive.

A) Fastest
B) Biggest
C) Most adapted
D) Smartest

the human lineage began to diverge from those of other primates about

What type of cells do humans have prokaryotic or eukaryotic?

Energy for active transport comes from

What enzyme is used in the production of low calorie food and why is it used? No links please x

do plants need oxygen to make sugar?

What traditional christmas decoration is actually a parasitic plant?

Haven't Answered a Question lately So I'll ask
What are the top three fastest animals in the world?

Damage to the heart muscle because of lack of blood supply is called:

From when we are very little, we are taught to know the difference between right and wrong and how to follow rules. As we get older, rather than the rules that we followed as children, we learn to follow laws that allow us to function as adults in today’s society.

We are all probably familiar with traffic laws or laws about stealing or committing crimes, but did you know that there are laws and public policies written specifically for and about families?

If you didn’t already know about these particular laws, now is your chance to find out!

For this activity, you will be researching the various laws and public policies related to families. In addition, you will be creating several scenarios where these laws might come into play.

Activity Guidelines:
You will start by researching various laws and public policies that pertain to families. You can really take this research in any direction that you like, while keeping in mind that the ultimate goal will be to write five short scenarios and connecting each one to a different family law or policy. For example, you could write a scenario that involves a parent who is intentionally hurting their child and connect this scenario to a child abuse law.

Each scenario description should be no more than about one paragraph in length. You are welcome to include dialogue in your scenario or simply summarize and explain your scenario idea. After each scenario, you will write the specific family law or policy being broken in the scenario or how it otherwise pertains to the scenario. The name of the law or policy and a brief explanation of its connection to the scenario is all that you need to include.
WILL MARK BRAINLY-IST
A basic template is included below. Feel free to use it or create your own in a word processing or slideshow program.

Your grade will be based on creating all five scenarios and your ability to connect each one to a different family law or policy. For further details on how you will be graded, see the rubric below.

Which of the follow organ systems are needed to be able to play soccer.