The mutations that is the most probable cause of beta thalassemia in a patient without a family history of the disease is A nonsynonymous point mutation resulting in a premature stop codon
<u>Explanation:</u>
The disorders that are related with blood are called Beta thalassemias. When the synthesis of the beta chains that are present in the hemoglobin blood does not happen this will be caused. The result of this will be anemia with high severity.
The existence of mutations in the gene HBB on 11th chromosome is the main reason for the Beta thalassemias. It is the mutation's characteristics that determines the disease to be either severe or not. The blocking of HBB results in the decrease of the synthesis of beta chains.
Answer: b) controlling the amount of air entering the combustion tube
The rate of a reaction when using a Bunsen burner is changed by modifying the temperature of the flame.
In this type of burner, the temperature of the flame is modified by controlling the amount of air available for the flame. More air allowed will result in a hotter flame. This is achieved by turning the collar around the air holes.
Velocity
momentum = mass times velocity
Answer: C
Explanation:
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster: the space between atoms increases: The motion and spacing of the particles determines the state of matter of the substance: The end result of increased molecular motion is that the object expands and takes up more space.
Answer:
life physical and basic
Explanation:
there is no such thinng as ethical and social science.
