Answer:
yes.
Explanation:
The black mutation allowed the species to survive the increasing pollution in its environment. The pollution caused the trees to be covered with soot. Black moths were more likely to survive in that environment. Without this mutation, peppered moths would have likely decreased in number when the environment changed.
Answer:
1) A, C and D
2) D
Explanation:
The normal hemoglobin is made up of heme and globin. The protein, globin is in turn made up of four polypeptide chains which include two alpha and two beta chains.
The gene gene responsible for the creation of the beta globin chain is located on the short arm of chromosome eleven. It is called the HBB gene. Many mutations occur on the HBB gene and a mutation on this gene produces abnormal hemoglobin like HBS, hbc, and hbe. HBs causes sickle cell anemia.
In sickle cell anemia, there is an alteration of the genetic code, leading to the substitution of a single amino acid where glutamic acid is replaced by valine in the sixth position of the beta chain.
In the mRNA, the change converts a glutamic acid codon(GAG or GAA) to a valine codon(GUA, GUC, GUU or GUG).
Sickle cell anemia is caused by a transversion that leads to a missense mutation.
Only include one line of energy being passed. A food chain only has 1 producer, 1 consumer, 1 secondary consumer, 1 tertiary consumer
Patchy hair loss due to the pulling out of hair from a compulsive behavior is trichotillomania.
Trichotillomania is also know as hair-pulling disorder, which is a mental disorder that involves recurrent, irresistible urges to pull hair from the scalp, eyebrows or other areas of the body, despite trying to stop. It is a body-focused repetitive disorder that is classified as an impulse control disorder.
