Answer:
DNA tightly coils around proteins and condenses into chromosomes, which fit in the nucleus.
Explanation:
Answer: B - People with two copies of the mutated gene have sickle-cell anemia. People with one copy of the mutated gene have both healthy and misshapen red blood cells and are carriers of the disease.
Explanation:
Co-dominance is when both the alleles of a gene in a heterozygote show. In the case of sickle cell anemia (since it is a co-dominant trait) even if the person only has one sickle cell allele, symptoms of sickle cell will still show up in that person. That's why the person in this example has both misshapen and healthy red blood cells.
I just had this answer but it hasn't been graded. I put 1. Meteor impacts, 2. volcanic gases and 5. Milankovitch cycles. I didn't put earthquakes because I wouldn't think it would affect the climate changing since they just affect ground movement.
It is b . Because three of them are less than 90.
An aqueous environment is made up of water molecules. The word aqueous means or pertains to water or dissolved in water. In an aqueous solution, water serves as solvent. Types of aqueous solutions are acids and bases.
