Make a short note on the classes of vitamins ? Plz help with this question

During replication, nucleotide bases are added to DNA strands in a ___ direction(s).

Alborosie

Nucleotide bases are added to DNA strands in a 5' to 3' direction.

What is DNA replication?

When a cell divides, DNA copies itself through a process called replication.

Generally speaking, DNA replication involves uncoiling the helix, strand separation by rupturing the hydrogen bonds between the complementary strands, and synthesis of two new strands through complimentary base pairing.
The origin of replication, which is a precise location in the DNA, is where replication starts.
From the point of origin, DNA replication is bidirectional.
The two parent DNA strands unwind and split apart at the origin of replication to generate two "Y-shaped" replication forks in order to start DNA replication.
These unwinding enzymes are known as DNA helicases.
The real location of DNA copying is at these replication forks.
Proteins that destabilize helices bind to the single-stranded areas to prevent the two strands from rejoining.
To reduce stress on the helical molecule during replication, enzymes known as topoisomerases cause breaks in the DNA and then reunite them.
The hydrogen bonding of free DNA nucleotides with those on each parent strand results in the formation of new complementary strands as the strands continue to unwind and split in both directions around the entire DNA molecule.
The new nucleotides are joined by DNA polymerases using phosphodiester bonds as they align themselves opposite each parent strand using hydrogen bonds.
Deoxynucleotide triphosphates, which are made up of a nitrogenous base called deoxyribose and three phosphates, are the actual nucleotides that are aligning through complementary base pairing.
Two of the phosphates are withdrawn to provide energy for bonding as the phosphodiester bond forms between the 3' OH of the previous nucleotide in the DNA strand and the 5' phosphate group of the next nucleotide.
In the end, two identical DNA molecules are created when each parent strand acts as a template for the synthesis of a complementary copy of itself.

Hence, nucleotide bases are added to DNA strands in a 5' to 3' direction.

To learn more about DNA replication click on the link

brainly.com/question/21265857

#SPJ1

3 0

1 year ago

Pls help.... I will brainliest you if you are good answer.

Xelga [282]

Answer:

1. 38.1 cm

2. 8 days

3. 20 blankets

4. 10 cups of detergent

5. 15 dry cloths

Explanation:

1. 15 x 2.54 = 38.1

2. 192/24 = 8

3. 12/3 = 4

4 x 5 = 20

4. 20/4 = 5

5 x 2 = 10

5. 10/2 = 5

5 x 3 = 15

3 0

2 years ago

Complex food molecules that are consumed by organisms must be broken down in order to be used by cells to support growth or rele

Charra [1.4K]

What do you want to ask

4 0

3 years ago

In an ________ solution, red blood cells ________. Group of answer choices hyposmotic, lose water and shrivel isomotic, have a n

lozanna [386]

$\large{ \boxed{ \bf{ \color{skyblue}{The \: correct \: question:}}}}$

Q. In an ________ solution, red blood cells ________. Group of answer choices:

Hyposmotic, lose water and shrivel
Isomotic, have a normal shape ✔️
Isosmotic, swell and may burst
Hyperosmotic, have a normal shape
Isosmotic, lose water and shrivel

$\large{ \boxed{ \bf{ \color{violet}{The \: correct \: answer:}}}}$

In an isosmotic solution, red blood cells have normal shape.

Option B

<h3>Explanation:-</h3>

Osmosis : The movement of the solvent or water molecules from a solution of their higher concentration to a solution of lower concentration through a semipermeable membrane.

❍ Depending upon the osmotic concentration, There are three types of solution and their result when cell is keot inside them:

Hyposmotic (Water enters, Swells up)
Isosmotic(Equal flow, No change)
Hyperosmotic(Water comes out, shrinkage)

━━━━━━━━━━━━━━━━━━━━

3 0

3 years ago

How does island size help in planning national parks and preserves?

lesantik [10]

Bigger island size means more biodiversity, so it would be better to plan a national park here than in a smaller island, with less biodiversity. Building the parks establishes a secure location where humans will not impact the environment.

8 0

3 years ago