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Butoxors [25]
3 years ago
13

What two things can cause a DNA helix to separate into two strands during PCR?

Biology
1 answer:
Marysya12 [62]3 years ago
8 0

How do the strands separate during PCR? The DNA polymerase breaks the hydrogen bonds between the two strands. The primers separate the strands during the annealing step. The high heat of the denaturation step breaks the hydrogen bonds between the two strands.

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Please help out! It would be very nice !!
kati45 [8]

Answer:D

Explanation:

Cell wall provides structure and protection

6 0
3 years ago
Read 2 more answers
A specialized structure within a cell that has its own specific function is known as a/an _______.
vichka [17]

Answer:

Organnelle

Ribosomes

Nucleus

Archaeabacteria

Phospholipid bilayer

Lipases

Explanation:

1. Organnelles are specialized structures in a cell designed to perform a particular function that will make the cell normal e.g. ribosome, Chloroplast, mitochondrion are examples of organnelles.

2. The Rough Endoplasmic Reticulum (RER) is one of the two endomembranous systems in the cell. It is characterized by its rough appearance which occurs as a result of ribosomes attached to its surface. This attachment of ribosomes makes its function related to protein synthesis.

3. Nucleus is a membrane bound organnelle found only in EUKARYOTIC cells. It houses the genetic material (DNA) of a cell and acts as the brain by directing all of the cellular activity of that cell.

4. Archaeabacteria is one of the six kingdoms in the hierarchical classification of living organisms. They contain unicellular and prokaryotic organisms that are uniquely characterized by their ability to survive extreme conditions e.g high temperature.

5. The plasma membrane is an outer covering that bounds the cells of both Prokaryotic and eukaryotic organisms. According to the fluid mosaic model that describes the structure of the cell membrane, it contains a phospholipid layer that confines its selective permeability upon it i.e. ability to control what goes in and out of the cell. This is due to the amphipathic nature of the phospholipid i.e. contains an hydrophobic and hydrophilic region.

6. Lipases are enzymes that are involved specifically in the breakdown of lipids and fat molecules into fatty acids and glycerol.

5 0
3 years ago
For plants to use the energy created for growth, reproduction and other
Dimas [21]
The answer is A.photosynthesis
8 0
4 years ago
Who postulated the “nature versus nurture” hypothesis?<br> psycology.
Mashcka [7]

Answer;

-Francis Galton

Explanation;

-This phrase was popularized by Francis Galton in discussion of the influences on social development. The two to first bring the argument to light may have been Locke and Rene Descartes, when Locke proposed that people are born without any innate ideas.

-The nature vs. nurture hypothesis is a scientific, cultural, and philosophical debate about whether human culture, behavior, and personality are caused primarily by nature or nurture.

4 0
4 years ago
Read 2 more answers
How many valence electrons does a carbon atom have?
Kay [80]
A carbon atom has 4 valence electrons
7 0
4 years ago
Read 2 more answers
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