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d1i1m1o1n [39]
3 years ago
13

Why do mountaineers become breathless as they reach high altitudes

Biology
2 answers:
Alona [7]3 years ago
7 0
There aren't enough oxygen molecules in the air are higher altitudes
nexus9112 [7]3 years ago
7 0

because as you rise the pressure increases and the air gets compressed making the oxygen to decrease and go down

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Circle the recombinant DNA constructs below:
Gekata [30.6K]

The correct answer is that a bacteriophage lambda chromosome containing the human collagen gene, because Recombinant DNA is the name given to DNA molecules that have part of DNA derived from two or more sources, usually these sources are different species. Recombinant DNA technology is also known as molecular cloning or even gene cloning.

B. A bacteriophage lambda chromosome containing the human collagen gene

<h3>How is recombinant DNA produced?</h3>

Obtaining recombinant DNA is based on the molecular cloning technique. The process can be summarized as follows:

  1. The first step is to isolate a DNA fragment, which contains the gene of interest. Remember that each gene makes a protein.
  2. The gene of interest, now isolated, is placed in a medium with a fragment of circular bacterial DNA, the plasmid and the restriction enzymes.
  3. The bacterial plasmid has the ability to insert a fragment of DNA external to its own genome.

<h3>What is DNA and what is it for?</h3>

DNA is the structure responsible for the transmission of all genetic characteristics — such as eye, skin and hair color, physiognomy, among others — in the process of reproduction of living beings. Thus, the main function of DNA is to transport information contained in its sequences, called genes.

Learn more about DNA in brainly.com/question/264225

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1 year ago
The diaphragm is cranial to the heart.<br><br> True<br><br> False
ladessa [460]

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false. it is caudal

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3 years ago
True of false: The wings on an airplane are flat.<br> 1. False<br> 2. True
makkiz [27]

Answer: True

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3 years ago
The average age at which an infant can sit unattended is approximately __________ months.
Alika [10]
This varies from baby to baby, but it is approximated to be the ages of 4 to 7 months.
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Read 2 more answers
HELP!!!!!!!!!!!!!!!!!!!!!!!!!
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4-Growth, maintenance, balance fluids, maintain proper hp

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