All categories

3 years ago

Before scientists can manipulate DNA they must first do a DNA extraction what is done during this process?

1 answer:

8 0

break the cells open to collect the dna.
seperate the dna from proteins and cellular debris.
precipitate the dna with an alcohol.
clean the dna.
look at the concentration and quality of the dna.

You might be interested in

What type of land feature is located at point D?

Ganezh [65]

Answer:

Peak of a mountain

Explanation:

5 0

2 years ago

Read 2 more answers

Why do babies with tetralogy of fallot have a faster breathing rate than normal babies

allochka39001 [22]

Because their bodies tell them that they need more oxygen and so breathe faster, and try and get the oxygen their body requires and depends on.

6 0

3 years ago

Lila is a track and field athlete. She must complete four laps around a circular track. The track itself measures 400 meters fro

tekilochka [14]

Answer: Her speed is 4.4 m/s, and her velocity is 0 m/s.

Explanation:

Formulae : $\text{Speed}=\dfrac{\text{Distance}}{\text{Time}}$

$\text{Velocity}=\dfrac{\text{Displacement}}{\text{Time}}$

Given: Length of track start to finish= 400 meters

After completing its 4 laps, total distance covered = 400 × 4 = 1600 meters

Time taken by Lila = 6 minutes

= 6 × 60 seconds [There are 60 seconds in 1 minute.]

= 360 seconds

Then, $\text{Speed}=\dfrac{1600}{360}=\dfrac{40}{9}m/s$

$= 4.44\ m/s$

But from start to finish displacement = 0 m [displacement is the shortest distance between starting point to the finishing point]

So, $\text{Velocity}=\dfrac0{360}=0\ m/s$

Hence, Her speed is 4.4 m/s, and her velocity is 0 m/s.

8 0

3 years ago

based on the number of ATP generated during the electron transport chain for every one glucose molecule, how many atp would be g

OleMash [197]

Answer:

If 10 glucose molecules are broken down, 320 ATP molecules will be generated during the electron transport chain.

Explanation:

In the electron transport chain, high energy electrons travel across a series of proteins embedded in the inner mitochondrial membrane, releasing energy in the process.Hydrogen is pumped from the matrix into the intermembrane space, therefore an hydrogen ion gradient is formed across the inner membrane.These proton are then pumped back into the mitochondrial membrane where the synthesis of ATP from ATP synthase takes place.

In the electron transport chain, a total of 32 ATPs are generated per glucose molecule.

so if 10 glucose molecules are broken down:

1 glucose ⇒ 32 ATPs

10 glucose ⇒ 10*32

320 ATP molecules

6 0

3 years ago

Which of the following statements is true of cytokinesis? a. takes place in plant cells only b. completes the cell cycle c. orga

ICE Princess25 [194]

Hey there!

We are going to find out and learn which of the of the following options would match the word $\boxed{cytokinesis}$

One thing about the cytokineses is that they always finish there cell cycle.

So, based from the information, your correct answer would be completes the cell cycle.

<span> A. takes place in plant cells only

B. completes the cell cycle

C. organizes DNA

D. occurs during </span>pro phase

Your correct answer is $\boxed{\boxed{completes \ the \ cell \ cycle}}$

Hope this helps.
~Jurgen

4 0

3 years ago