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Trava [24]
3 years ago
15

HELP ME ASAP!!!!!!!!!!

Biology
1 answer:
Katen [24]3 years ago
3 0
This is created from splitting atoms
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Meselson and Stahl were trying to determine if DNA replication was semiconservative, conservative, or dispersive by labeling E.
uranmaximum [27]

Answer:

Option C

Explanation:

All of the following options are correct except option C. in the Meselson Stahl experiment, after the first round of replication, the DNA molecules made consisted mainly of one parental strand and one new strand each which is the DNA molecules of intermediate density (H-L). Then future replications will produce more of the low density L-L density. This form of replication is thus termed to be the semi conservative form of replication

8 0
3 years ago
Which of the following examples illustrates osmosis?
Ber [7]
An example of osmosis is when the water leaves the tubules of the kidney in response to the hypertonic fluid surrounding the tubules. Osmosis in the kidneys is a filtration. Osmosis will filter the water molecules and solutes in the kidneys from the plasma to the tubule. The other choices given are not an example of osmosis. The correct answer to this question is A. 
6 0
3 years ago
In a protein molecule, the number of amino acid molecules may be as few as _____. 5 500 50 5,000
densk [106]

The correct answer is 50.

Proteins are complex biomolecules made out of amino-acids bound together with peptide bonds. They can be comprised out of thousands of several polypeptide chains with thousands of amino-acids organised in complex structures. But, some of them can contain only around 50 amino-acid and still posses all of the complex traits of an protein.

Some polypeptides contain only 3 amino-acids, but technically they are not classified as proteins due to a big functional and structural differences between a simple polypeptide chain and a protein. Proteins are made out polypeptide chains, but this is only the primary structure of an protein. the polypeptide chains in a protein are organized into complex 3D structures that give them novel traits and complexity as compared to plain polypeptide chains.

7 0
3 years ago
Read 2 more answers
Cell<br> is the process by<br> which cells divide?
dezoksy [38]

Answer:

mitosis

Explanation:

6 0
3 years ago
The jackson prairie is a temperate grassland region in mississippi, spread over an area of fertile soil. what could be a reason
Serjik [45]
A. Conversion  into farmlands
B. Encroachment by the forest
C. Grazing by herds of buffalo 
D. Occasional by the outbreaks of fire.

The Correct Answer is: A. Conversion into farmlands
4 0
3 years ago
Read 2 more answers
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