Evolution is change in the heritable characteristics of biological populations over successive generations
Answer:
Myelin sheath
Explanation:
Multiple sclerosis is a degenerative disease which is caused by the degeneration of the myelin sheath which forms a sheath around the neurons.
As a result of the degeneration of the myelin sheath which increases the speed of the transmission of the impulse, the transmission slows down and the communication of the body part with the brain slows down.
In the given question since the communication of the muscles to the body part has slowed down and muscles control might be lost therefore this is the result of the degeneration of the myelin sheath.
Thus, the Myelin sheath is the correct answer.
Answer:
People can be immunised against a pathogen through vaccination. Different vaccines are needed for different pathogens. For example, the MMR vaccine is used to protect children against measles, mumps and rubella (German measles).
Answer:
Deforestation or site clearing
Explanation:
Answer:
One chromosome of the homologous pair has a sequence that results in hair and one chromosome has a sequence that results in no hair
One copy of the "H" allele on the homologous chromosome is enough to make the guinea pig have hair since both alleles are transcribed and translated
Only one of the chromosomes in the homologous pair carry the genetic sequence to make hair
Explanation:
Hairy is dominant over hairless. If there was a hairless guinea pig here instead, we would know its genotype. It would be hh. Remember any time a dominant allele is present it is expressed in the phenotype, so if the phenotype is not the dominant one, we know the genotype must contain two recessive alleles.
