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KonstantinChe [14]
3 years ago
15

What does a target cell require to respond to an extracellular signal molecule?

Biology
1 answer:
zaharov [31]3 years ago
7 0
A specific protein called a receptor
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Which is an example of electrical energy being converted or changed into light energy?
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Answer:

b

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it turns on

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What evidence has allowed scientists to conclude that the common ancestor of modern chimps and humans lived around 7 million yea
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Biological molecules such as proteins and DNA reveal differences between humans and chimps that would have taken around 7 million years to accumulate.

<h3>What is DNA?</h3>

All known animals and viruses have genetic information in the form of deoxyribonucleic acid, a polymer consisting of two polynucleotide chains that coil around one another to form a double helix. Ribonucleic acid is a type of nucleic acid, as is DNA.

The two DNA strands are known as polynucleotides because they are constructed from simpler monomeric units called nucleotides.

The four nucleobases that contain nitrogen—cytosine (C), guanine (G), adenine (A), or thymine (T)—along with deoxyribose and a phosphate group—make up each nucleotide. The sugar of one nucleotide and the phosphate of the following make covalent bonds, creating what is known as the phospho-diester linkage, which results in an alternating sugar-phosphate backbone.

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2 years ago
What is the definition of peroxisomes
Eva8 [605]
Peroxisomes are a small organelle that is present in the cytoplasm of many cells and<span> that contains the reducing enzyme catalase and usually some oxidases.

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3 0
3 years ago
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Where do living things find the nutrients that they need to survive
Naddik [55]
If you are a Carnivore, then you find nutrients from prey,(Deer, pig, etc.) but if you are a herbivore, then you find nutrients from plants. However, if you are a omnivore, (we are!) then you get nutrients from both plants and animals. I hope I was helpful!
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3 years ago
Bacteriophage .They used the radioactive isotope sulfur-35 to label the of the virus and phosphorus-32 to label the of the virus
puteri [66]

Answer:

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The Hershey-Chase Experiments is a well known experiment done by scientist, Alfred Hershey and Martha Chase. They conducted the experiment in the year 1952.

It was an extra ordinary experiment which made the world believe that the DNA is the genetic material and not a protein. In their experiment, they tried to find out if the protein coat or the core of the DNA of the virus which enters into the infected cells would help them to understand whether the genes were made of DNA or of protein.

They used sulfur-35 and phosphorus-32 radioactive isotopes to trace the DNA and the proteins.

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3 years ago
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