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3 years ago

What separates the internal contents of a cell from the extracellular environment?.

1 answer:

3 0

Answer:
Both prokaryotic and eukaryotic cells have a plasma membrane, a double layer of lipids that separates the cell interior from the outside environment. This double layer consists largely of specialized lipids called phospholipids.
Cells are separated from the IF by a selectively permeable cell membrane that helps regulate the passage of materials between the IF and the interior of the cell. The body has other water-based ECF.

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To accomplish the screening, researchers synthesize a single-stranded dna probe using vgp mrna as a template. what will be the s

Andreyy89

There are only two things you need to know.

1. A probe works by base pairing to the DNA strand, so its sequence must be complementary to the DNA sequence of interest. 
2. You need to know which strand is the strand of interest. 

To tell the truth I'm not sure about the answer to question 2. Which one is the template strand? Either can be used as the template. I *think* the top strand is typically used as the template, but usually it's specified. Perhaps it's specified somewhere in your question or previously. 

Anyway once you find your template strand, an mRNA was made from it so its sequence is complementary to the template strand. Then a probe was made using the mRNA as a template, so it is complementary to the mRNA, which in turn is complementary to the template strand (on the original DNA). So essentially what this means is that the probe will have the same sequence as the DNA template strand (the one you used to make the mRNA).

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3 years ago

Some cells in your body carry more than one copy of its genome (they have multiple nuclei). What are these cells called ?

Sladkaya [172]

Answer:

Interestingly, some cells in the body, such as muscle cells, contain more than one nucleus ((Figure)), which is known as multinucleated. Other cells, such as mammalian red blood cells (RBCs), do not contain nuclei at all.

Explanation:

Also I searched this up. I hope this helps :)

5 0

3 years ago

HELP PLEASE!!!!!!!!!!!

soldi70 [24.7K]

Answer:

1: Representing things which would be difficult to observe directly

2. Cytoplasm

3. 3, glycolysis

4. oxygen

5. Much more ATP produced

6. All of the above

7. Throughout the cytoplasm (?)

8. Twice

9.Carbon dioxide

10. Phosphorylate NADH

Explanation:

Hope this helps :)

8 0

3 years ago

Which of the following characteristics can be utilized to classify and categorize viruses?

Katen [24]

Answer:

Type of nucleic acid

Strandness of type of nucleic acid (positive /negative)

colony growth characteristics

Hosts infected

Capsid shape

Disease symptoms

presence or absence of envelop

presence or absence of capsid shape

Explanation:

The characteristics that can be utilized when classifying/categorizing viruses are :

Type of nucleic acid

Strandness of type of nucleic acid (positive /negative)

colony growth characteristics

Hosts infected

Capsid shape

Disease symptoms

presence or absence of envelop

presence or absence of capsid shape

The Remaining two categories i.e Gram stain category and fermentation of different sugars cannot be used to classify or categorize viruses but they can be applied for the categorization of Bacteria

5 0

3 years ago

A plant is living along the shore of a deep, large, and cold body of fresh water. The top of the body of water is full of life a

saw5 [17]

A lake, lol easy as pie.

8 0

3 years ago

Read 2 more answers