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Bess [88]
3 years ago
8

How are two identical DNA molecules formed

Biology
2 answers:
GenaCL600 [577]3 years ago
8 0

Answer:

Explanation:

DNA is a double stranded molecule. When DNA is copied the two strand of DNA (old strands) separate and new nucleotides match up with the two separated strands. This process creates two identical double stranded DNA molecules are formed. Each DNA molecule contains one strand of the original DNA molecule and one newly synthesized (made) strand.

hope it helps :)

Kruka [31]3 years ago
5 0
Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment. During separation, the two strands of the DNA double helix uncoil at a specific location called the origin. Several enzymes and proteins then work together to prepare, or prime, the strands for duplication. Finally, a special enzyme called DNA polymerase organizes the assembly of the new DNA strands. The following description of this three-stage process applies generally to all cells, but specific variations within the process may occur depending on organism and cell type.
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Are ladybugs herbivores carnivores or omnivores
kobusy [5.1K]
Lady bugs are carnivores. If you want to get more technical they are insectivores. This is because they only eat soft bodied insects/arachnids like aphids, mites, and scale insects.
8 0
4 years ago
At the site of the rough endoplasmic reticulum, proteins that are destined for secretion are manufactured. Insulin is a protein-
Eva8 [605]

Answer:

The type of vesicular transport involved in the exporting of protein-based hormones, such as insulin, into the bloodstream is regulated exocytosis.

Explanation:

In general terms, exocytosis is a type of active transport that allows intracellular substances are released to the extracellular space, through of vesicles that fuse with the plasma membrane, which allow the exit of substances from inside the cell.

Regulated exocytosis is the specific vesicular transport for the secretion of substances, such as hormones. For this type of transport to exist, the presence of an extracellular signal is required, which will activate the fusion of the vesicles.

In the case of insulin, the external signal originates with the increase in blood glucose levels, a signal that penetrates the intracellular space and generates an increase in insulin production in the islets of Langerhans (pancreas).

Before insulin secretion occurs, the cell must be depolarized, allowing calcium to enter, which promotes transport by regulated exocytosis of insulin to the extracellular space.

Learn more:

brainly.com/question/1109181

4 0
3 years ago
What is the difference between a benign tumor and a<br> metastatic tumor?
den301095 [7]
A benign tumour is generally not dangerous as they grow usually within a membrane in one space. They can however grow really big in a short space of time and can cause pressure on neighbouring blood vessels which can be dangerous.

Metastatic or malignant tumours are dangerous and cancerous. After they grow, some cells break off and travel in the bloodstream to a different area of the body (usually the main organs) and forms a secondary tumour there. This keeps happening until the cancer has spread to all of the body.

**_hope this helps**
7 0
2 years ago
Respiration occurs in the__________
BaLLatris [955]

Answer:

cells of the body

Explanation:

Respiration happens in the cells of plants, animals and humans, mainly inside mitochondria, which are located in a cell’s cytoplasm, energy released during respiration is used by plants to make amino acids, and by animals and humans to contract their muscles to let them move. Don't confuse respiration with breathing. Respiration releases energy, while breathing

7 0
3 years ago
You're on the pilot episode of a new game show called "The Transport Factor." The host hands you three different amino acids, fo
sp2606 [1]

Answer:

Nine

Explanation:

These are called carrier proteins, and they have what it is called: solute-binding sites, that when saturated, they are considered "full".

Each different amino acid needs a separate carrier protein to move it across the plasma membrane, so that's 3, then the four different sugars need separate carriers as well, we add 4 more then, we have 7 so far, finally the 2 different ions use 2 more, plus the other 7, totals 9.

5 0
4 years ago
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