"Gravitational attraction" is initially responsible for the formation of the clumps of matter within this interstellar cloud.
<u>Answer:</u> Option C
<u>Explanation:</u>
About 4.6 billion years ago, the solar systems were a bunch of gases and dusts, referred to solar nebula. Gravity squeezed the material as it started to rotate, creating the sun at the middle of the fog.
The rest of the material began to accumulate with the sunrise. The smaller particles moved together to form larger particles that were connected by gravity. As lumps develop, gravity increases and turns into kinetic energy of moving particles that collide and produce heat.
Answer:
Recombinant DNA
Explanation:
Recombinant DNA (or rDNA) is made by combining DNA from two or more sources. In practice, the process often involves combining the DNA of different organisms.
You don't show the picture, but I can give you an overview.
A frameshift mutation is anything that puts the regular order of 3 nucleotides (a codon) out of it's norm. If these things happen, then you get a frameshift.
Note: This occurs in the gene - not outside of the coding sequence:
1. Loss of a single basepair (perhaps the A in bold):
ATG AAA ATT CTG CCC T...
ATG AAA TTC TGC CCT ....
The codons after AAA are now completely different so this will result in a different amino acid pattern and thus a completely different polypeptide (protein) that may nor may not be functional.
2. Loss of two basepairs (so perhaps 2 of the A's)
ATG AAA ATT CTG CCC T...
ATG AAT TCT GCC CT....
3. Gain of 1 base pair will also cause problems:
ATG AAA ATT CTG CCC T...
ATG AAA AAT TCT GCC CT...
4. Gain of 2 base pairs will also cause problems:
ATG AAA ATT CTG CCC T...
ATG AAA AAA TTC TGC CCT...
