Answer: A gene is a sequence of nucleotides in DNA or RNA that encodes the synthesis of a gene product, either RNA or protein. A chromosome is a long DNA molecule with part or all of the genetic material of an organism. A allele is one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
Explanation:
As baleen whale number increase in the antarctic the seal population decreases.These is because baleen whale is predictor to seal while sea is the prey. An increase in number of baleen whale led to decrease of number of seal since more seal will be required to feed the baleen whale.
Answer:
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Explanation:
The mitochondrial DNA is most similar to the genome of Rickettsia prowazekii; both have been described as small, highly derived, and "reduced and tailored to suit its dependent lifestyle " (Gray 1998). ... Generally, there are 2 to 10 copies of the DNA in each mitochondrion and many mitochondia in each cell.
Cellular components' strange shape may indicate a new role for mitochondria in the brain. Summary: New research suggests that mitochondria help neurons grow and make proper connections in the developing brain. The work could open up new lines of inquiry into may be at play when these processes go awry in brain disease.