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alexira [117]
3 years ago
9

If the length of a helper t-cell is 20 micrometers calculate the approximate size of a HIV virus

Biology
1 answer:
hjlf3 years ago
5 0

HIV-infected T cells help transport the virus throughout the body. ... When HIV is introduced into blood or tissues, the virus binds to CD4 molecules on the surface of helper T cells, injecting its contents into cells and setting off a process that leads to the assembly and release of new virus particles.

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Why do we add detergent to the strawberries? Group of answer choices To dissolve proteins that are found on the DNA molecule and
alukav5142 [94]

Answer:

The correct answer is - To dissolve the cell and nuclear membranes and release the DNA.

Explanation:

The major function of the detergent in DNA extraction is to dissolve the cell and cellular membranes. It can increase the membrane permeability by pulling apart lipids and proteins that are components of the nuclear and cellular membrane and lyse the cell, from which we want to extract the DNA.

Detergents cause pores in the cell membranes and once these membranes are completely lysed the DNA is released from the cell. It is similar to detergents removes fat (lipids) from dishes.

5 0
3 years ago
Two different scientists were studying the carbon levels of the air above a large city. They both found that the levels had incr
ss7ja [257]

Answer:

Scientist 1

Explanation:

<em>The conclusion of scientists 1 is valid.</em>

Human activities such as burning of fossil fuels, agriculture, deforestation, etc. leads to the emission of carbon in the form of carbon dioxide into the atmosphere. <em>An increase in the population of a city will only lead to an increase in these activities and hence, an increase in the amount of carbon emitted into the atmosphere.</em>

Also, volcanic activities leads to the production of volcanic gases which is a mixture of carbon dioxide, oxides of sulfur, nitrogen, etc.

<u>However, an active volcano that is several miles away from the city might not be a major source of carbon in the air above a large city. The carbon dioxide produced from such volcanic activity thins out before reaching the city.</u>

5 0
3 years ago
What do autotrophs do durring photosynthesis?
OleMash [197]
They make their food furing photosynthesis
5 0
3 years ago
NEED HELP ASAPPPP!!! PLEASEE
pentagon [3]

stop spamming please u will get help be relaxed and wait

3 0
3 years ago
Given the sequence of DNA nucleotide bases TTAGCCTTG, give the complementary strand of mRNA produced during transcription.
malfutka [58]
Complementary strand of mRNA would be: AAUCGGAAC

In short, Your Answer would be Option C

Hope this helps!
3 0
3 years ago
Read 2 more answers
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