Dna strands serve as which of the following during dna synthesis
Answers
Replication is involved in duplicating and copying genetic material. DNA strands serve as templates during DNA synthesis. Thus, option c is correct.
What is a template strand?
In DNA replication, the parent strand act as the template strand and is used by DNA polymerase to make the copy by attaching the complementary bases.
The daughter strand formed is semi-conservative in nature. The parent strand acting as template results in leading and lagging strands.
Therefore, the DNA strand act as a template.
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The complete question is attached to the image below.
When the parental DNA strands are separated, a replication bubble forms to allow the new daughter nucleotides access to the template strands of DNA
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Flowers are an important part of __________ reproduction in strawberry plants. A) abiotic B) asexual C) budding D) sexual
How do cells increase in number?
What determines the damage caused to the human body by an electric shock
Answers
Electron microscopes' specimens can be stained for contrast, while light microscopes' specimens appear black and white
Electron microscopes are used for dissections, while compound light microscopes are not.
Electron microscopes use electron beams and electromagnetic lenses, while compound light microscopes use light and ocular and objective lenses.
Answers
Explanation:
D) Electron microscopes use electron beams and electromagnetic lenses, while compound light microscopes use light and ocular and objective lenses.
Microscopes are instruments used for viewing microscopic cellular structures, not visible with the human eye. With an arrangement of lenses, and manipulation of light or electrons, these magnify very small objects. Light microscopy uses light and multiple lenses, while electron microscopes use electrons. These create larger images of objects.
While light microscopes with a resolution power of 0.2 um can view objects at a magnification x1000, electron microscopes are capable of a much smaller resolution at 0.5 nm and magnification of x100,000.
The wavelengths of light in the visible part of the eletromagnetic spectrum (visible light is between 390 nm and 760 nm,) are manipulated in light microscopy. The visible light is passed through the biological sample where it bends, as it travels through multiple lenses. This is often usable on live organisms. Thus the observer can look at cells as they undergo division or locomotion. Resolution describes the shortest distance, where two objects are still visible as distinct bodies. With light microscopes, one may view objects between a millimeter (10-3 m) and a fraction of a micrometer at 0.2 thousands of a millimetre or 2 x 10-7 m.
Unlike light microscopy, electron microscopy involves the manipulation of electrons through the apparatus, under a vacuum. As the beams of electrons have shorter wavelengths than light particles, the images produced have higher resolution and can be seen more clearly. The sample is meticulously prepared, and is typically not made up of live cells; EM can be used in viewing subcellular components, such as organelles and can view structures as small as atoms at 1/10 000 000 of a millimeter, 10-10 m.
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The correct option is (D) Electron microscopes use electron beams and electromagnetic lenses, while compound light microscopes use light and ocular and objective lenses.
A microscope is an instrument that is utilized to amplify small objects. A few microscope might be utilized to notice an object at the cell level, allowing researchers to see the state of a cell, its nucleus, mitochondria, and different Organelles.
Electron Microscope utilizes a light emission and their wave-like qualities to magnify an object's image. The Light Microscope employs visible light to detect tiny objects.
Hence, the correct option is D.
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Answers
If you mean child trafficking : Support livelihoods to help families avoid the need to have their children work. Raise awareness of trafficking, reducing the number of children being trafficked. Rehabilitate survivors, and help them rebuild their lives. Protect unaccompanied refugee children, and keep them from the clutches of traffickers.
Answer:
Many ways, but here are just a few:
- Fundraisers and donations to an anti-trafficking organizations.
- People who know what they are talking about and acting on it. They're not being a bystander!
- Be a conscientious and informed consumer.
Hope this helps!!!
Answers
Answer:
B.
A.
B.
Explanation:
Press that thanks button plz
Answers
Answer:
10,000 N-m
Explanation:
Work done is the product of force applied and the displacement occurred due to the applied force.
Work done = Force x displacement
= 200 N x 50 meters
= 10,000 N-m
w = f × d , where F, force applied and where D, distance.
W= 200 N × 50 m
= 10 000 nm or j
B) because pesticide salesman need to make more money
C) because plants begin to eat the pesticides
D) because the explosive growth of the human population places increased demands on current farmers
Answers
Answer:
Why do humans need more potent pesticides over time?
because the target population soon develops a resistance to the chemical
Explanation:
Over time when pest are exposed to pesticides to much, at a point in time they will develop resistance which calls for change of pesticides application.
Answer:
A. Because the target population soon develops a resistance to the chemical
Explanation:
I believe this is the correct answer here because it would be similar to how humans develop tolerance for medicine and illicit drugs; over time, we would need more and more of the drug to achieve the same result. It is also logical. B and C are definitely not correct nor are they logical, and D is not logical either; human population growth does not influence current farmers that much, and even if it did, humans would not need a higher quality of pesticide, just a higher quantity.