The end of the sun's life will include which event?

Why can you predict the base sequence of one strand in a molecule of DNA if you know the sequence of the other strand?

Hatshy [7]

In DNA, each base pairs up with only
one other base

8 0

3 years ago

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When blood clots, an enzyme is activated to change a protein from one form into another.

exis [7]

Answer:

Hey mate!!

<h2>Process of blood-clotting</h2>

The mechanism to prevent excessive loss of blood from the body is called blood clotting.

<h3>Steps in blood clotting:</h3>

At the site of cut, damaged cells and platelets release thromboplastin.
This thromboplastin with the help of calcium ions,converts prothrombin into thrombin.
In the presence of calcium ions,thrombin reacts with soluble fibrinogen and converts it into insoluble fibrin.
Fibrin is a solid substance which forms threads and a meshwork at the site of cut.
Blood cells trapped in the network of fibrin.The blood shrinks and squeezes out the rest of plasma in the form of clear liquid.
The solid mass which is left behind is called clot.

Hope this helps ......

Good luck on your assignment....

8 0

3 years ago

Nephrons located close to the medulla with long nephron loops are called ________ nephrons.

soldi70 [24.7K]

Answer:

The answer is juxtamedullary nephrons. Hope this helps.

8 0

4 years ago

2.

Andrej [43]

Answer:

it provides energy to the body.

4 0

2 years ago

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genetic code in the nucleus b. main component in a ribosome c. translated with introns removed d. attached to amino acids e. tra

KiRa [710]

Answer:

a.genetic code in the nucleus- DNA

b. main component in a ribosome- rRNA

c. translated with introns removed- mRNA

d. attached to amino acids -tRNA

e. translated including introns- pre-mRNA

Explanation:

a. DNA- is a nucleic acid molecule that acts as a genetic material in the organisms. In eukaryotes, the DNA molecule is present in the nucleus of the cell .

b. rRNA- is a molecule formed by the transcription but does not undergo translation and is directly involved in the formation of the ribosome structure which provides the site for the protein synthesis.

c. mRNA- is the RNA formed from the DNA by transcription which contains the message for the formation of the protein molecule. The mRNA is formed after the modification like splicing which removes the non-coding sequence.

d. tRNA-transfer RNA is involved in the translation of mRNA as it brings a specific amino acid to the peptide after it recognizes the codon.

e. pre-mRNA- is the mRNA molecule that has not undergone any modification and thus contains the non-coding sequence also.

3 0

4 years ago