C Selective breeding
you are selecting which trait you want for the next generation
Answer:
The magnetic field of Earth is caused by currents of electricity that flow in the molten core. These currents are hundreds of miles wide and flow at thousands of miles per hour as the earth rotates. The powerful magnetic field passes out through the core of the earth, passes through the crust and enters space.
A. the number of hydrogen bonds that hold the strands of DNA together
Answer:
all organisms share a common genetic code
Explanation:
Bacteria has been genetically modified to produce human insulin protein via genetic recombination. The gene coding for human protein is inserted in bacterial plasmid and then returned back to the bacteria. This arrangement allows faster and inexpensive way of insulin production.
Human insulin gene can be inserted into bacterial DNA because in the end all the organisms share a common genetic code. Genetic code is used by all organisms for gene expression forming the resultant protein. It is dependent on the information carried by the nucleotide triplets which finally get translated. Genetic code is universal which means the triplets will always code for the same amino acid no matter the organism hence bacteria can be used to produce a human protein if the gene can be made available to it.
